How to install a jaw coupling hub?

Users can install jaw coupling hubs by following these steps: The customers should first buy a spider according to the selected hub (preferably from the same corresponding series) having the same specifications & parameters. After purchase, they should ensure that each component is free from contaminants, defects or cracks and match the shaft diameter to the bore size of the hubs. Before starting the coupling installation, users should ensure that the machinery is disconnected from all power sources. They should also not install it on unstable or moving equipment. The hubs having key slots should be fitted with the keys and slid fit into shafts for preventing slipping during shaft rotation. The keyless hubs can be attached directly to shafts using set screws. The users should insert a spider into a hub while ensuring that the spider opening is large enough to fit both the shaft & the optional key. Selected jaw coupling hubs can be overhung slightly or be moved back on the shafts for adjusting according to misalignments in shaft separation. Then, the second hub is brought near the first hub while keeping the guidelines in mind, such as the gap between hub faces. Users should check the set screw tightness & alignment before testing to prevent possible misalignment. Now the coupling is ready for operation, users should remove any material or tool away from the shaft and coupler. The equipment is ready to start up and test.

What is the difference between rigid and flexible jaw coupling?

Rigid couplings offer a rigid connection between two shafts that are firmly connected. They transfer torque smoothly throughout the system. These rigid couplings can't handle misalignment and shocks. Flexible couplings like jaw coupling hubs provide flexible connections and hence, can withstand shocks & misalignment up to a certain extent. However, there is a chance of some losses during torque transfer while using flexible jaw coupling.

What are some common mistakes the users make while selecting a jaw coupling hub?

Some common mistakes users make while selecting jaw coupling hubs are: Failing to check maximum bore capacity: Users should always check the shaft size of the driving equipment before purchasing a jaw coupling. Using same size couplings everywhere: Using the one-size-fits-all approach may seem like a good idea to prevent downtime. But an oversized or undersized jaw coupling may cause malfunctioning in motors and failed couplings. Ignoring heat and chemical compatibility: Since the jaw couplings require purchasing of both hubs and spiders, the customers should take note that both the coupling hub & spider materials are compatible with the required environments. Overlooking space restrictions: Users should make sure that the selected couplings according to required torque applications can fit the provided space. High torque applications require either a large diameter coupling to handle high torque or coupling with different designs & high torque density.

How to choose the right jaw coupling hub?

Customers can choose the right jaw coupling hubs for their needs according to the following points:Determining the usage.Choosing the material considering the intended application environment.Selecting the coupling on the basis of torque, speed, bore size and other factors.Jaw coupling hub types are based on usage and their ability to handle the degree of movement or rotation. For example, curved jaw coupling hubs (Lovejoy CJ Series) transfer high torque and can handle some degree of rotation (backlash) due to their curved jaw design.

What is the difference between keyway and keyless jaw coupling hubs?

Selected models of jaw coupling hubs feature a cutout slot in the mating part (hub) of the couplings, known as keyways. These slots or keyways fit in the keys or a separate mechanical attachment on the shafts or other mated tools. The use of "Keys" leads to improved torque & prevents slipping. It also results in reduced losses due to vibrations & backlash (degree of free movement between two rotating, mating parts).However, some applications do not require keys, as keyless jaw coupling hubs use only set screw holding power to transfer torque. Keyless hubs are ideal for applications that cause no damages or injuries even if the shafts slip. Keyed jaw coupling hubs concentrate the stresses around the key or key slot, causing maintenance issues and efficiency losses. Keyless hubs distribute the load & hence require less maintenance.

Jaw Coupling Hubs

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Jaw couplings are flexible couplings that connect two shafts at their ends to transmit power. They consist of jaw coupling hubs and spiders for handling diverse temperature ranges, speed of...Read more

BOSTON GEAR -

Hub And Insert Assemblies

Style	Model	MPN	Price
A	XFCP21-1/4	XFCP21-1/4	€18.65	RFQ
A	XFCP21-1/8	XFCP21-1/8	€18.65	RFQ
A	XFCP23-3/8	XFCP23-3/8	€35.36	RFQ
A	XFCP23-5/16	XFCP23-5/16	€25.36
A	XFCP23-7/16	XFCP23-7/16	€25.36	RFQ

MARTIN SPROCKET -

Super Series Jaw Couplings

Style	Model	Coupling Size	Outside Dia.	Keyway Size	Length Through Bore	Type	Material	Price
A	MS050 7/16	050	1.063"	-	5/8"	Finished	Steel	€4.94
B	MS050 5/16	050	1.063"	-	5/8"	Reborable Bore	Steel	€5.76
C	MS050 1/4	050	1.063"	-	5/8"	Reborable	Steel	€4.94
C	MS050 3/8	050	1.063"	-	5/8"	Reborable Bore	Steel	€4.94
D	MS050 5/8	050	1.063"	-	5/8"	Bored to Size	Steel	€4.94
A	MS050 1/2	050	1.063"	-	5/8"	Finished	Steel	€4.94
D	MS050 9/16	050	1.062"	-	5/8"	Finished	Steel	€4.94
D	MS070 5/8	070	1 3/8"	-	3/4"	Bored to Size	Steel	€9.52
D	MS070 9/16	070	1 3/8"	1/8" x 1/16"	3/4"	Finished	Steel	€8.16
E	MS070BLK 1/4	070	1 3/8"	-	3/4"	Reborable Bore	Steel	€8.16
C	MS070 5/16	070	1 3/8"	-	3/4"	Reborable	Steel	€8.16
A	MS070 7/16	070	1 3/8"	-	3/4"	Bored to Size	Steel	€9.52
A	MS070 1/2	070	1 3/8"	-	3/4"	Finished Straight Jaw	Steel	€8.16
C	MS070 1/4	070	1 3/8"	-	3/4"	Reborable Straight Jaw	Steel	€8.16
C	MS070 3/8	070	1 3/8"	-	3/4"	Reborable Straight Jaw	Steel	€8.16
D	MS070 11/16	070	1 3/8"	3/16" x 3/32"	3/4"	Finished	Steel	€8.16
D	MS070 3/4	070	1 3/8"	3/16" x 3/32"	3/4"	Finished Straight Jaw	Steel	€8.16
C	MS075 1/4	075	1 3/4"	-	13/16"	Reborable Bore	Steel	€9.86
D	MS075 11/16	075	1 3/4"	3/16" x 3/32"	13/16"	Finished	Steel	€9.86
C	MS075 3/8	075	1 3/4"	-	13/16"	Reborable Straight Jaw	Steel	€9.86
A	MS075 7/16	075	1 3/4"	-	0.813"	Bored to Size	Steel	€9.86
C	MS075 5/16	075	1 3/4"	-	0.813"	Reborable	Steel	€9.86
D	MS075 5/8	075	1 3/4"	-	0.813"	Bored to Size	Steel	€9.86
A	MS075 1/2	075	1 3/4"	-	0.813"	Bored to Size	Steel	€9.86
D	MS075 9/16	075	1 3/4"	1/8" x 1/16"	13/16"	Finished Straight Jaw	Steel	€9.86

LOVEJOY -

SS Type Hubs With Keyway, Metric Bores

Style	Model	Keyway Size	Outside Dia.	Length Through Bore	Max. Bore	Min. Bore	Dimension G	Hub Material	Keyway	Price
A	68514476581	6 mm x 2.8 mm	53.59 mm	25.4 mm	28 mm	11 mm	13.2 mm	Stainless Steel	Keyway	€203.93
A	68514476599	10 mm x 3.3 mm	114.3 mm	49.28 mm	56.26 mm	19 mm	25.4 mm	Stainless Steel	Keyway	€1,159.92

LOVEJOY -

AL Type Hubs With Keyway, Metric Bores

Style	Model	Outside Dia.	Keyway Size	Max. Speed	Number Of Jaws	Length Through Bore	Nominal Torque	Hub Length	Moment Of Inertia (solid) Wr2	Price
A	68514462906	34.54 mm	5 mm x 2.3 mm	14000 RPM	2	19.05 mm	4.88 N-m	31.75 mm	0.04 lbs.-sq. in.	€14.80
A	68514465696	34.54 mm	5 mm x 2.3 mm	14000 RPM	2	19.05 mm	4.88 N-m	31.75 mm	0.04 lbs.-sq. in.	€22.66
A	68514465694	34.54 mm	4 mm x 1.8 mm	14000 RPM	2	19.05 mm	4.88 N-m	31.75 mm	0.04 lbs.-sq. in.	€15.54
A	68514465698	34.54 mm	6 mm x 2.8 mm	14000 RPM	2	19.05 mm	4.88 N-m	31.75 mm	0.04 lbs.-sq. in.	€14.80
A	68514456487	34.54 mm	4 mm x 1.8 mm	14000 RPM	2	19.05 mm	4.88 N-m	31.75 mm	0.04 lbs.-sq. in.	€15.54
A	68514458620	38.86 mm	4 mm x 1.8 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€26.00
A	68514466758	38.86 mm	5 mm x 2.3 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.17
A	68514458621	38.86 mm	5 mm x 2.3 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€24.76
A	68514449633	38.86 mm	5 mm x 2.3 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.97
A	68514458622	38.86 mm	5 mm x 2.3 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€24.76
A	68514464655	38.86 mm	4 mm x 1.8 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.17
A	68514444679	38.86 mm	6 mm x 2.8 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€26.00
A	68514459394	38.86 mm	6 mm x 2.8 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.97
A	68514447302	38.86 mm	5 mm x 2.3 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.97
A	68514451098	38.86 mm	4 mm x 1.8 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.17
A	68514460429	38.86 mm	4 mm x 1.8 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€26.00
A	68514460887	38.86 mm	5 mm x 2.3 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€26.00
A	68514447427	38.86 mm	6 mm x 2.8 mm	11000 RPM	3	20.57 mm	10.17 N-m	33.27 mm	0.121 lbs.-sq. in.	€16.97
A	68514456514	38.86 mm	3 mm x 1.4 mm	9000 RPM	3	23.11 mm	16.27 N-m	36.32 mm	0.271 lbs.-sq. in.	€17.23
A	68514441924	38.86 mm	3 mm x 1.4 mm	11000 RPM	3	20.57 mm	10.17 N-m	31.75 mm	0.121 lbs.-sq. in.	€16.97
A	68514458626	52.32 mm	8 mm x 3.3 mm	7000 RPM	3	26.16 mm	35.93 N-m	45.21 mm	0.644 lbs.-sq. in.	€50.68
A	68514449634	52.32 mm	6 mm x 2.8 mm	7000 RPM	3	26.16 mm	35.93 N-m	45.21 mm	0.644 lbs.-sq. in.	€50.68
A	68514452048	52.32 mm	8 mm x 3.3 mm	7000 RPM	3	26.16 mm	35.93 N-m	45.21 mm	0.644 lbs.-sq. in.	€50.68
A	68514458625	52.32 mm	6 mm x 2.8 mm	7000 RPM	3	26.16 mm	35.93 N-m	45.21 mm	0.644 lbs.-sq. in.	€50.68
A	68514458627	52.32 mm	8 mm x 3.3 mm	7000 RPM	3	26.16 mm	35.93 N-m	45.21 mm	0.644 lbs.-sq. in.	€52.86

LOVEJOY -

AL Type Hubs Without Keyway, Inch Bores
The AL-Type hubs by Lovejoy are used with coupling spiders to create AL Type couplings. These lightweight Lovejoy hubs feature aluminium construction, a maximum rotational speed of 18000 rpm and a nominal torque rating of up to 1240 in.lb. They do not require lubrication and are interchangeable with all standard coupling hubs. These quality AL Type hubs are available in different bore diameters, keyway sizes and overall lengths.

Style	Model	Max. Speed	Number Of Jaws	Nominal Torque	Max. Bore	Moment Of Inertia (solid) Wr2	Set Screw Style Coupling Location Size	Hub Type	Dimension G	Price
A	68514417914	-	3	417 lbs.-in.	1 3/8"	1.207 lbs.-sq. in.	11/25"	1	3/4"	€79.60
A	68514418035	5000 RPM	4	1240 lbs.-in.	1 7/8"	72 lbs.-sq. in.	0.63"	2	1"	€133.21
A	68514417977	5000 RPM	3	792 lbs.-in.	1 5/8"	3.531 lbs.-sq. in.	3/4"	1	0.87"	€102.41
A	68514476261	7000 RPM	3	417 lbs.-in.	1 3/8"	1.207 lbs.-sq. in.	11/25"	1	3/4"	€103.59
A	68514456473	7000 RPM	3	417 lbs.-in.	1 3/8"	1.207 lbs.-sq. in.	11/25"	1	3/4"	€52.84
A	68514417880	7000 RPM	3	318 lbs.-in.	1.187"	0.644 lbs.-sq. in.	11/25"	2	3/4"	€79.19
A	68514410795	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€29.09
A	68514410793	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€26.00
A	68514417847	9000 RPM	3	194 lbs.-in.	1 1/8"	0.336 lbs.-sq. in.	11/25"	1	1/2"	€40.07
A	68514410791	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€24.76
A	68514444004	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€26.00
A	68514410794	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€26.00
A	68514410797	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€26.00
A	68514410792	9000 RPM	3	144 lbs.-in.	7/8"	0.271 lbs.-sq. in.	0.34"	2	13/25"	€29.58
A	68514410631	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514461817	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514410632	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514410637	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	-	€16.97
A	68514410630	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514410633	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514410634	11000 RPM	3	90 lbs.-in.	7/8"	0.121 lbs.-sq. in.	0.31"	2	1/2"	€16.97
A	68514410471	14000 RPM	2	43.2 lbs.-in.	3/4"	0.04 lbs.-sq. in.	0.38"	1	1/2"	€15.54
A	68514410466	14000 RPM	2	43.2 lbs.-in.	3/4"	0.04 lbs.-sq. in.	0.38"	1	1/2"	€15.54
A	68514410480	14000 RPM	2	43.2 lbs.-in.	3/4"	0.04 lbs.-sq. in.	0.38"	1	1/2"	€14.80
A	68514410463	14000 RPM	2	43.2 lbs.-in.	3/4"	0.04 lbs.-sq. in.	0.38"	1	1/2"	€15.54

LOVEJOY -

C Type Hubs With Keyway, Metric Bores
Lovejoy C type jaw couplings are suitable for providing shaft-to-shaft connection for power transmission and accommodating parallel & angular misalignment in industrial machinery, electric motors and compressors. These higher torque jaw couplings feature radially removable elastomeric cushions for ease-of-maintenance, no metal to metal contact for wear minimisation and cast iron construction for providing resistance against oil, sand, dirt, grease & moisture, thereby ensuring safe operation even upon elastomeric cushion failure. Choose from an extensive range of these jaw type couplings, available in 3500 & 4200 rpm variants on Raptor Supplies.

Style	Model	Outside Dia.	Max. Speed	Keyway Size	Number Of Jaws	Length Through Bore	Nominal Torque	Max. Bore	Min. Bore	Price
A	68514462792	130.81 mm	4800 RPM	8 mm x 3.3 mm	3	69.85 mm	337.6 N-m	64 mm	22 mm	€336.77
A	68514447265	156.97 mm	4200 RPM	18 mm x 4.4 mm	3	79.25 mm	532.84 N-m	73 mm	22 mm	€446.63
A	68514459032	156.97 mm	4200 RPM	-	3	79.25 mm	532.84 N-m	73 mm	22 mm	€446.63
A	68514445219	156.97 mm	4200 RPM	-	3	79.25 mm	532.84 N-m	73 mm	22 mm	€446.63
A	68514449378	190.5 mm	3500 RPM	18 mm x 4.4 mm	3	79.25 mm	854.17 N-m	76 mm	32 mm	€506.88
A	68514449012	190.5 mm	3500 RPM	16 mm x 4.3 mm	3	79.25 mm	854.17 N-m	76 mm	32 mm	€506.88
A	68514454363	215.9 mm	3200 RPM	25 mm x 5.4 mm	3	95.25 mm	1037.43 N-m	102 mm	32 mm	€627.66
A	68514447813	231.65 mm	2300 RPM	-	3	95.25 mm	1281.25 N-m	89 mm	38 mm	€845.75
A	68514462695	231.65 mm	2300 RPM	25 mm x 5.4 mm	5	107.95 mm	2135.42 N-m	102 mm	44 mm	€910.18

BOSTON GEAR -

Jaw Coupling Hubs

Style	Model	Coupling Size	Bore Dia.	Keyway Size	Outside Dia.	Overall Length	Length Through Bore	Size	Hub Projection	Price
A	SSFC12 3/8	FC12	3/8"	3/32" x 3/64"	1 1/4"	2.31"	4/5"	SSFC12	5/8"	-	RFQ
A	SSFC15 1/2	FC15	1/2"	1/8" x 1/16"	1 1/2"	2 3/4"	1"	SSFC15	3/4"	-	RFQ
A	SSFC15 3/4	FC15	3/4"	3/16" x 3/32"	1 1/2"	2 3/4"	1"	SSFC15	3/4"	-	RFQ
A	SSFC20 5/8	FC20	5/8"	3/16" x 3/32"	2"	3.69"	1 2/5"	SSFC20	1 1/8"	€249.62
A	SSFC20 7/8	FC20	7/8"	3/16" x 3/32"	2"	3.69"	1 2/5"	SSFC20	1 1/8"	-	RFQ
A	SSFC20-1	FC20	1"	1/4" x 1/8"	2"	3.69"	1 2/5"	SSFC20	1 1/8"	€277.67

LOVEJOY -

LC Type Hubs With Keyway, Metric Bores
Lovejoy LC style jaw couplings are designed for accommodating shaft misalignment & power transmission for gearboxes, electric pumps, motors, compressors and blowers. These jaw couplings feature radially removable snap wrap elastomer for ease-of-maintenance, collar attachment for securely holding centre element in place and sintered iron construction for safe operation even upon elastomer failure. Choose from a broad range of these couplings, available in speed ratings of 5000 & 9000 rpm on Raptor Supplies.

Style	Model	Keyway Size	Outside Dia.	Max. Speed	Overall Length	Length Through Bore	Nominal Torque	Max. Bore	Min. Bore	Price
A	68514458560	6 mm x 2.8 mm	53.59 mm	9000 RPM	63.5 mm	25.4 mm	21.92 N-m	29 mm	11 mm	€39.50
A	68514458575	8 mm x 3.3 mm	114.3 mm	5000 RPM	123.95 mm	49.28 mm	195.24 N-m	54 mm	19 mm	€184.47

LOVEJOY -

C Type Hubs With Keyway, Inch Bores

Style	Model	Keyway Size	Max. Speed	Outside Dia.	Number Of Jaws	Length Through Bore	Min. Bore	Dimension G	Hub Length	Price
A	68514449351	1" x 1/2"	2300 RPM	9 3/25"	5	4 1/4"	1 3/4"	1 22/25"	6.13"	€889.58
A	68514455016	1" x 1/2"	2300 RPM	9 3/25"	5	4 1/4"	1 3/4"	1 22/25"	6.13"	€910.18
A	68514449075	1/2" x 1/4"	2300 RPM	9 3/25"	5	4 1/4"	1 3/4"	1 22/25"	6.13"	€965.95
A	68514426044	1/2" x 1/4"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€336.77
A	68514444547	1/2" x 1/4"	4200 RPM	6.18"	3	3 3/25"	7/8"	1.63"	4 3/4"	€446.63
A	68514449809	1/2" x 1/4"	3200 RPM	8 1/2"	3	3 3/4"	1 1/4"	1.63"	5.38"	€617.76
A	68514426057	1/2" x 1/4"	4200 RPM	6.18"	3	3 3/25"	7/8"	1.63"	4 3/4"	€441.54
A	68514448194	1/2" x 1/4"	3500 RPM	7 1/2"	3	3 3/25"	1 1/4"	1.63"	4 3/4"	€506.88
A	68514444370	1/2" x 1/4"	3500 RPM	7 1/2"	3	3 3/25"	1 1/4"	1.63"	4 3/4"	€506.88
A	68514426046	1/2" x 1/4"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€336.77
A	68514447080	1/2" x 1/4"	2300 RPM	9 3/25"	3	3 3/4"	1 1/2"	1 22/25"	5.63"	€588.58
A	68514444012	1/2" x 1/4"	3500 RPM	7 1/2"	3	3 3/25"	1 1/4"	1.63"	4 3/4"	€506.88
A	68514426043	1/2" x 1/4"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€336.77
A	68514426045	1/2" x 1/4"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€336.77
A	68514426037	1/4" x 1/8"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€353.72
A	68514426050	1/4" x 1/8"	4200 RPM	6.18"	3	3 3/25"	7/8"	1.63"	4 3/4"	€420.95
A	68514426036	1/4" x 1/8"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€353.72
A	68514426051	1/4" x 1/8"	4200 RPM	6.18"	3	3 3/25"	7/8"	1.63"	4 3/4"	€420.95
A	68514426064	3/4" x 3/8"	4200 RPM	6.18"	3	3 3/25"	7/8"	1.63"	4 3/4"	€446.63
A	68514449456	3/4" x 3/8"	3200 RPM	-	3	3 3/4"	1 1/4"	1.63"	5.38"	€615.92
A	68514448108	3/4" x 3/8"	2300 RPM	9 3/25"	5	4 1/4"	1 3/4"	1 22/25"	6.13"	€910.18
A	68514452702	3/4" x 3/8"	2300 RPM	9 3/25"	3	3 3/4"	1 1/2"	1 22/25"	5.63"	€845.75
A	68514451525	3/4" x 3/8"	3500 RPM	7 1/2"	3	3 3/25"	1 1/4"	1.63"	4 3/4"	€506.88
A	68514448193	3/4" x 3/8"	3500 RPM	7 1/2"	3	3 3/25"	1 1/4"	1.63"	4 3/4"	€506.88
A	68514426041	3/8" x 3/16"	4800 RPM	5.15"	3	2 3/4"	7/8"	1 1/2"	4 1/4"	€336.77

DAYTON -

Jaw Coupling Hubs
Dayton jaw coupling hubs are connected with drive shafts for handling heavy loads and providing safer power transmission, even in high temperature applications. These units feature sintered iron / steel construction that requires no lubrication and can protect against dirt, debris, grease, oil and moisture. The complete assembly requires two jaw hubs and a spider for creating a smooth interaction between the two components. They can counter the inevitable misalignment between the connecting shafts and dampen shocks & vibrations. Choose from an array of these jaw coupling hubs, available in lengths ranging from 26.68 to 77.80 mm.

Style	Model	Bore Dia.	Keyway Size	Outside Dia.	Overall Coupling Length	Hub Material	For Shaft Type	Coupling Size	Overall Length	Price
A	29HY72	1 1/2"	3/8" x 3/16"	3.31"	4 15/64"	Sintered Iron	Keyed	L110	2.49"	€96.98
A	29HY53	1 1/2"	3/8" x 3/16"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€126.41
A	29HY64	1 1/2"	3/8" x 3/16"	4 1/2"	4 7/8"	Steel	-	-	3.06"	€170.55
A	29HY62	1 1/4"	1/4" x 1/8"	4 1/2"	4 7/8"	Carbon Steel	Keyed	L190	3.06"	€174.79
A	29HY70	1 1/4"	1/4" x 1/8"	3.31"	4 15/64"	Sintered Iron	Keyed	L110	2.49"	€97.09
A	29HY92	1 1/4"	1/4" x 1/8"	2 17/32"	3 1/2"	Sintered Iron	Keyed	L100	2.05"	€62.76
A	29HY51	1 1/4"	1/4" x 1/8"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€127.08
B	29HZ01	1 1/8"	1/4" x 1/8"	2.1"	2 1/2"	Sintered Iron	Round	L095	1.45"	€31.92
A	29HY50	1 1/8"	1/4" x 1/8"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€127.51
A	29HY61	1 1/8"	1/4" x 1/8"	4 1/2"	4 7/8"	Carbon Steel	Keyed	L190	3.06"	€170.55
A	29HY69	1 1/8"	1/4" x 1/8"	3.31"	4 15/64"	Sintered Iron	Keyed	L110	2.49"	€97.60
A	29HY91	1 1/8"	1/4" x 1/8"	2 17/32"	3 1/2"	Sintered Iron	Keyed	L100	2.05"	€58.10
A	29HY55	1 3/4"	3/8" x 3/16"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€126.41
A	29HY63	1 3/8"	5/16" x 5/32"	4 1/2"	4 7/8"	Carbon Steel	Keyed	L190	3.06"	€170.05
A	29HY52	1 3/8"	5/16" x 5/32"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€126.58
A	29HY71	1 3/8"	5/16" x 5/32"	3.31"	4 15/64"	Sintered Iron	Keyed	L110	2.49"	€97.61
A	29HY93	1 3/8"	5/16" x 5/32"	2 17/32"	3 1/2"	Sintered Iron	Keyed	L100	2.05"	€58.12
A	29HY73	1 5/8"	3/8" x 3/16"	3.31"	4 15/64"	Sintered Iron	Keyed	L110	2.49"	€97.77
A	29HY65	1 5/8"	3/8" x 3/16"	4 1/2"	4 7/8"	Carbon Steel	Keyed	L190	3.06"	€176.41
A	29HY54	1 5/8"	3/8" x 3/16"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€127.60
A	29HY56	1 7/8"	1/2" x 1/4"	3 3/4"	4 1/2"	Sintered Iron	Keyed	L150	2.69"	€126.78
A	29HY66	1 7/8"	1/2" x 1/4"	4 1/2"	4 7/8"	-	Keyed	L190	3.06"	€170.55
A	29HY90	1"	1/4" x 1/8"	2.1"	2 1/2"	Sintered Iron	Keyed	L095	1.45"	€30.92
A	29HZ04	1"	1/4" x 1/8"	2 17/32"	3 1/2"	Sintered Iron	Keyed	L100	2.05"	€64.09
A	29HY60	1"	1/4" x 1/8"	4 1/2"	4 7/8"	Carbon Steel	Keyed	L190	3.06"	€176.80

LOVEJOY -

RRS And RRSC Type Hubs Without Keyway, Inch Bores
Lovejoy jaw type couplings are used for power transmission to industrial equipment such as pumps, gearboxes, compressors, blowers, mixers & conveyors. These couplings have a centre drop out design for proper shaft separation. The nitrile butadiene (Buna N) rubber elastomer material is oil resistant and operates effectively in temperatures ranging between -40 & 212 deg F. They absorb shock and misalignment for reduced wear on the shaft assembly. Choose from a wide range of Lovejoy RRS & RRSC type spacer coupling assemblies, available in bore diameters ranging between 3/4 and 7/16 inches, on Raptor Supplies.

Style	Model	Outside Dia.	Hub Material	Coupling Size	Nominal Torque	Max. Bore	Min. Bore	Hub Length	Distance Between Spider And Hub Face (dimension Cl)	Price
A	68514450357	2.11"	Sintered Iron	RRS095	194 lbs.-in.	1 1/8"	0.437"	1.43"	0.09"	€35.12
B	68514441229	2.11"	Sintered Iron	-	194 lbs.-in.	1 1/8"	0.437"	1.43"	0.09"	€36.87
A	68514441230	2.53"	Sintered Iron	RRS099	318 lbs.-in.	1.187"	0.437"	1.65"	3/25"	€44.78
A	68514441231	2.53"	Sintered Iron	RRS100	417 lbs.-in.	1 3/8"	0.437"	1.97"	3/25"	-	RFQ
A	68514452184	2.53"	Sintered Iron	RRS099	318 lbs.-in.	1.187"	0.437"	1.65"	3/25"	€44.78
A	68514452199	2.53"	Sintered Iron	RRS100	417 lbs.-in.	1 3/8"	0.437"	1.97"	3/25"	€64.32
A	68514445265	3 3/4"	Sintered Iron	RRS150	1240 lbs.-in.	1 7/8"	5/8"	2.63"	3/25"	€124.06
A	68514445269	3 3/4"	Sintered Iron	RRSC150	1240 lbs.-in.	1 7/8"	5/8"	2.63"	3/25"	€159.39
A	68514438159	3.31"	Sintered Iron	RRS110	792 lbs.-in.	1 5/8"	5/8"	2 11/25"	3/25"	€96.26
B	68514445273	4 1/2"	Sintered Iron	-	1728 lbs.-in.	2 1/8"	3/4"	2.82"	3/25"	€184.47
A	68514445281	4 1/2"	Sintered Iron	RRSC190	1728 lbs.-in.	2 1/8"	3/4"	2.82"	3/25"	€253.44
A	68514445290	5"	Cast Iron	RRS225	2340 lbs.-in.	2 5/8"	3/4"	3.06"	3/25"	€251.75
A	68514445301	5"	Cast Iron	RRSC225	2340 lbs.-in.	2 5/8"	3/4"	3.06"	3/25"	-	RFQ

LOVEJOY -

SS Type Hubs With Keyway, Inch Bores
Lovejoy jaw type couplings are designed for light-, medium- and heavy-duty electrical motor and internal combustion power transmission applications. These SS type couplings feature fail-safe stainless-steel construction that continues to perform even if the elastomer fails. They come with passivated finished bores to offer added rust protection and can accommodate both angular and parallel shaft misalignments. These units are interchangeable with L and AL line of hubs and are available in overall lengths ranging from 2 to 4.2 inches on Raptor Supplies.

Style	Model	Keyway Size	Outside Dia.	Min. Bore	Hub Length	Max. Bore	Dimension G	Length Through Bore	Hub Material	Price
A	68514470025	1/4" x 1/8"	3 8/25"	5/8"	2 14/25"	1 5/8"	22/25"	-	Stainless Steel	€302.51
A	68514470015	1/4" x 1/8"	2.11"	1/4"	1 13/25"	1"	-	1"	Stainless Steel	€130.33
A	68514470016	1/4" x 1/8"	2.11"	1/4"	1 13/25"	-	13/25"	-	Stainless Steel	€205.11
A	68514470019	1/4" x 1/8"	2.54"	0.437"	2.09"	1 3/8"	0.71"	-	Stainless Steel	€241.45
A	68514470020	1/4" x 1/8"	2.54"	0.437"	2.09"	1 3/8"	0.71"	1.38"	Stainless Steel	€241.45
A	68514470023	1/4" x 1/8"	3 8/25"	5/8"	2 14/25"	1 5/8"	22/25"	1 17/25"	Stainless Steel	€256.30
A	68514470011	1/8" x 1/16"	1 9/25"	1/4"	1.34"	1"	13/25"	0.82"	Stainless Steel	€211.62
A	68514470007	1/8" x 1/16"	1 9/25"	1/4"	1 8/25"	7/8"	1/2"	0.82"	Stainless Steel	€165.36
A	68514470027	3/8" x 3/16"	3 8/25"	5/8"	2 14/25"	1 5/8"	22/25"	1 17/25"	Stainless Steel	€302.51
A	68514470013	3/16" x 3/32"	2.11"	1/4"	1 13/25"	1"	13/25"	-	Stainless Steel	€130.33
A	68514470009	3/16" x 3/32"	1 9/25"	1/4"	1 8/25"	7/8"	1/2"	0.82"	Stainless Steel	€165.36
A	68514470008	3/16" x 3/32"	1 9/25"	1/4"	1 8/25"	7/8"	1/2"	0.82"	Stainless Steel	€165.36
A	68514470012	3/16" x 3/32"	2.11"	1/4"	1 13/25"	1"	13/25"	-	Stainless Steel	€205.11
A	68514470014	3/16" x 3/32"	2.54"	1/4"	1 13/25"	1"	-	1"	Stainless Steel	€136.86
A	68514470018	3/16" x 3/32"	2.54"	0.437"	2.09"	1 3/8"	-	1.38"	Stainless Steel	€153.48
A	68514470017	3/16" x 3/32"	2.54"	0.437"	2.09"	1 3/8"	0.71"	1.38"	Stainless Steel	€241.45
A	68514470022	5/16" x 5/32"	2.54"	5/8"	2.46"	1 7/8"	0.71"	1 3/4"	Stainless Steel	€241.45
A	68514470026	5/16" x 5/32"	3 8/25"	5/8"	2.63"	1 7/8"	22/25"	1 3/4"	Stainless Steel	€302.51

LOVEJOY -

SS Type Hubs Without Keyway, Inch Bores
Lovejoy SS style jaw coupling hubs are designed for power transmission and accommodating shaft misalignment in gearboxes, electric pumps, motors, blowers and compressors. They transfer misalignments and shocks to the central part of the coupling assembly for wear minimisation on the shaft assembly. These SS hubs feature finished bores to ensure rust protection and are capable of performing even in case of elastomer failure.

Style	Model	Outside Dia.	Max. Bore	Dimension G	Hub Length	Keyway Size	Hub Material	Keyway	Color	Price
A	68514470006	1 9/25"	7/8"	1/2"	1 8/25"	No Keyway	Stainless Steel	Without Keyway	Metallic	€105.13
A	68514476406	2.11"	1"	13/25"	1 13/25"	No Keyway	Stainless Steel	Without Keyway	Metallic	€214.13

HYDRO VACUUM -

Coupling Hubs

Style	Model	Diameter	Price
A	EZ1 D=54	54"	€41.38	RFQ
A	EZ3 D=82	82"	€44.03	RFQ
A	EZ7 D=107	107"	€48.84	RFQ
A	EZ9 D=127	127"	€55.11	RFQ
A	EZ10 D=180	180"	€80.73	RFQ

LOVEJOY -

SS Type Hubs With Rough Stock Bore
Lovejoy SS type jaw coupling hubs are designed for power transmission and accommodating shaft misalignment for gearboxes, electric pumps, motors, blowers and compressors. They transfer shocks and misalignments to the central part of the coupling assembly for wear minimisation on the shaft assembly. These hubs have no metal to metal contact to eliminate the need for maintenance and provide resistance to dirt, sand, oil, moisture and grease. They are made of stainless steel for fail safe operation even upon elastomer failure. Variants are available in bore diameters of 1/4 & 5/8 inches on Raptor Supplies.

Style	Model	Outside Dia.	Length Through Bore	Max. Bore	Min. Bore	Dimension G	Hub Length	Hub Material	Keyway	Price
A	68514470001	1 9/25"	0.82"	7/8"	1/4"	1/2"	1 8/25"	Stainless Steel	Without Keyway	€57.41
A	68514470004	3 8/25"	1 17/25"	1 5/8"	5/8"	22/25"	2 14/25"	Stainless Steel	Without Keyway	€191.31

LOVEJOY -

C Type Hubs With Rough Stock Bore
Lovejoy C-type couplings are ideal for transmitting power to industrial equipment such as pumps, gearboxes, compressors, blowers, mixers and conveyors. These jaw-type couplings feature cast-iron construction to handle higher torque rates and accommodate both angular and parallel shaft misalignments. They provide a standard shaft-to-shaft connection for medium-duty applications and ensure a fail-safe performance that continues to perform even if the elastomer fails. Choose from a wide range of these Lovejoy C-type couplings, available in 7/8, 1-1/2, 1-1/4 & 1-3/4 inch bore diameters on Raptor Supplies.

Style	Model	Outside Dia.	Max. Speed	Number Of Jaws	Length Through Bore	Nominal Torque	Min. Bore	Dimension G	Hub Length	Price
A	68514440125	5.15"	4800 RPM	3	2 3/4"	2988 lbs.-in.	7/8"	1 1/2"	4 1/4"	€286.81
A	68514440126	6.18"	4200 RPM	3	3 3/25"	4716 lbs.-in.	7/8"	1.63"	4 3/4"	€346.50
A	68514426067	7 1/2"	3500 RPM	3	3 3/25"	7560 lbs.-in.	1 1/4"	1.63"	4 3/4"	€382.28
A	68514441036	8 1/2"	3200 RPM	3	3 3/4"	9182 lbs.-in.	1 1/4"	1.63"	5.38"	€506.88
A	68514441037	9 3/25"	2300 RPM	3	3 3/4"	11340 lbs.-in.	1 1/2"	1 22/25"	5.63"	€724.12
A	68514441038	9 3/25"	2300 RPM	5	4 1/4"	18900 lbs.-in.	1 3/4"	1 22/25"	6.13"	€845.75

LOVEJOY -

AL Type Hubs Without Keyway, Metric Bores
Lovejoy AL Type jaw coupling hubs without keyway are used to link two rotating shafts for torque transmission from one shaft to the other. These jaw coupling hubs are made of aluminium for light weight and corrosion resistance. They come equipped with a SOX (NBR) rubber elastomer spider capable of being operated at temperatures ranging from -40 to 100 degrees C.

Style	Model	Keyway Size	Outside Dia.	Hub Material	Max. Speed	Number Of Jaws	Overall Length	Length Through Bore	Nominal Torque	Price
A	68514448973	No Keyway	38.86 mm	Aluminum	11000 RPM	3	53.85 mm	20.57 mm	10.17 N-m	€16.97
A	68514456137	No Keyway	38.86 mm	Aluminum	11000 RPM	3	53.85 mm	20.57 mm	10.17 N-m	€16.17

LOVEJOY -

L Type Hubs Without Keyway, Metric Bores

Style	Model	Hub Material	Max. Speed	Outside Dia.	Number Of Jaws	Nominal Torque	Min. Bore	Set Screw Style Coupling Location Size	Hub Type	Price
A	68514456230	Cast Iron	4200 RPM	127 mm	3	264.38 N-m	19 mm	25.4 mm	2	€159.01
A	68514456237	Cast Iron	1800 RPM	156.97 mm	3	532.84 N-m	22 mm	39.62 mm	2	€378.43
A	68514456235	Cast Iron	1800 RPM	156.97 mm	3	532.84 N-m	22 mm	39.62 mm	2	€336.75
A	68514456234	Cast Iron	1800 RPM	156.97 mm	3	532.84 N-m	22 mm	39.62 mm	2	€336.75
A	68514456233	Cast Iron	1800 RPM	156.97 mm	3	532.84 N-m	22 mm	39.62 mm	2	€336.75
A	68514456232	Cast Iron	1800 RPM	156.97 mm	3	532.84 N-m	22 mm	39.62 mm	2	€306.24
A	68514456231	Cast Iron	4200 RPM	127 mm	3	264.38 N-m	19 mm	25.4 mm	2	€152.19
A	68514456184	Cast Iron	4200 RPM	127 mm	3	264.38 N-m	19 mm	25.4 mm	2	€178.69
A	68514448319	Cast Iron	4200 RPM	127 mm	3	264.38 N-m	19 mm	25.4 mm	2	€178.69
A	68514452697	Sintered Iron	7000 RPM	64.52 mm	3	35.93 N-m	12 mm	11.18 mm	1	€36.38
A	68514451562	Sintered Iron	14000 RPM	34.54 mm	2	4.88 N-m	6 mm	9.65 mm	1	€9.45
A	68514448510	Sintered Iron	18000 RPM	27.43 mm	2	2.97 N-m	6 mm	7.87 mm	1	€6.84
A	68514410216	Sintered Iron	18000 RPM	27.43 mm	2	2.97 N-m	6 mm	7.87 mm	1	€8.08
A	68514455169	Sintered Iron	31000 RPM	16 mm	2	0.4 N-m	3 mm	3.3 mm	1	€7.19
A	68514441465	Sintered Iron	9000 RPM	53.59 mm	3	21.92 N-m	12 mm	11.18 mm	1	€28.79
A	68514456179	Sintered Iron	5000 RPM	95.25 mm	3	140.1 N-m	16 mm	19.05 mm	1	€94.18
A	68514456181	Sintered Iron	5000 RPM	95.25 mm	3	140.1 N-m	16 mm	19.05 mm	1	€98.89
A	68514456182	Sintered Iron	5000 RPM	114.3 mm	3	195.24 N-m	19 mm	22.35 mm	2	€147.15
A	68514450351	Sintered Iron	18000 RPM	27.43 mm	2	2.97 N-m	6 mm	7.87 mm	1	€6.84
A	68514458803	Sintered Iron	14000 RPM	34.54 mm	2	4.88 N-m	6 mm	9.65 mm	1	€11.16
A	68514460679	Sintered Iron	31000 RPM	16 mm	2	0.4 N-m	3 mm	3.3 mm	1	€6.09
A	68514460708	Sintered Iron	18000 RPM	27.43 mm	2	2.97 N-m	6 mm	7.87 mm	1	€6.09
A	68514456229	Sintered Iron	5000 RPM	114.3 mm	3	195.24 N-m	19 mm	22.35 mm	2	€122.24
A	68514441461	Sintered Iron	9000 RPM	53.59 mm	3	16.27 N-m	6 mm	11.18 mm	1	€18.70
A	68514441456	Sintered Iron	11000 RPM	44.45 mm	3	10.17 N-m	6 mm	7.87 mm	1	€12.19

LOVEJOY -

L Type Hubs With Keyway, Metric Bores

Style	Model	Hub Material	Max. Speed	Outside Dia.	Keyway Size	Coupling Size	Number Of Jaws	Nominal Torque	Elastomeric Member	Price
A	68514444832	-	9000 RPM	53.59 mm	4 mm x 1.8 mm	-	3	21.9 N-m	Buna N	€30.22
A	68514444720	-	5000 RPM	95.25 mm	6 mm x 2.8 mm	-	3	140 N-m	Buna N	€83.80
A	68514458268	Cast Iron	1800 RPM	156.97 mm	-	-	3	533 N-m	Buna N	€378.43
A	68514441849	Cast Iron	4200 RPM	127 mm	10 mm x 3.3 mm	-	3	264 N-m	Buna N	€187.67
A	68514447492	Cast Iron	4200 RPM	127 mm	-	-	3	264 N-m	Buna N	€175.16
A	68514452674	Cast Iron	4200 RPM	127 mm	14 mm x 3.8 mm	-	3	264 N-m	Buna N	€178.69
A	68514448797	Cast Iron	4200 RPM	127 mm	14 mm x 3.8 mm	-	3	264 N-m	Buna N	€233.59
A	68514444089	Cast Iron	4200 RPM	127 mm	16 mm x 4.3 mm	-	3	264 N-m	Buna N	€178.69
A	68514444598	Cast Iron	4200 RPM	127 mm	18 mm x 4.4 mm	-	3	264 N-m	Buna N	€187.67
A	68514445062	Cast Iron	1800 RPM	156.97 mm	14 mm x 3.8 mm	-	3	533 N-m	Buna N	€378.43
A	68514450102	Cast Iron	1800 RPM	156.97 mm	18 mm x 4.4 mm	-	3	533 N-m	Buna N	€378.43
A	68514461202	Cast Iron	1800 RPM	156.97 mm	14 mm x 3.8 mm	-	3	533 N-m	Buna N	€336.75
A	68514449664	Cast Iron	4200 RPM	127 mm	10 mm x 3.3 mm	-	3	264 N-m	Buna N	€187.67
A	68514459308	Cast Iron	1800 RPM	156.97 mm	-	-	3	533 N-m	Buna N	€336.75
A	68514456544	Cast Iron	4200 RPM	127 mm	18 mm x 4.4 mm	-	3	264 N-m	Buna N	€178.69
A	68514456067	Cast Iron	1800 RPM	156.97 mm	16 mm x 4.3 mm	-	3	533 N-m	Buna N	€397.42
A	68514452961	Cast Iron	1800 RPM	156.97 mm	10 mm x 3.3 mm	-	3	533 N-m	Buna N	€336.75
A	68514452197	Cast Iron	4200 RPM	127 mm	10 mm x 3.3 mm	-	3	264 N-m	Buna N	€187.67
A	68514450292	Cast Iron	1800 RPM	156.97 mm	14 mm x 3.8 mm	-	3	533 N-m	Buna N	€378.43
A	68514448982	Cast Iron	4200 RPM	127 mm	8 mm x 3.3 mm	-	3	264 N-m	Buna N	€187.67
A	68514445609	Cast Iron	1800 RPM	156.97 mm	-	-	3	533 N-m	Buna N	€378.43
A	68514456236	Cast Iron	1800 RPM	156.97 mm	18 mm x 4.4 mm	-	3	533 N-m	Buna N	€378.43
A	68514441885	Cast Iron	1800 RPM	156.97 mm	10 mm x 3.3 mm	-	3	533 N-m	Buna N	€378.43
A	68514449605	Cast Iron	4200 RPM	127 mm	-	-	3	264 N-m	Buna N	€178.69
A	68514447569	Cast Iron	4200 RPM	127 mm	14 mm x 3.8 mm	-	3	264 N-m	Buna N	€233.59

LOVEJOY -

L Type Hubs With Keyway, Inch Bores

Style	Model	Hub Material	Max. Speed	Outside Dia.	Keyway Size	Coupling Size	Number Of Jaws	Set Screw Style Coupling Location Size	Hub Type	Price
A	68514441809	Cast Iron	4200 RPM	5"	0.625" x 0.312"	-	3	1"	2	€178.69
A	68514412588	Cast Iron	1800 RPM	6.18"	1/4" x 1/8"	-	3	1 14/25"	2	€397.42
A	68514448250	Cast Iron	1800 RPM	6.18"	0.438" x 0.219"	-	3	1 14/25"	2	€397.42
A	68514412423	Cast Iron	4200 RPM	5"	0.188" x 0.094"	-	3	1"	2	€187.67
A	68514412586	Cast Iron	1800 RPM	6.18"	1/4" x 1/8"	-	3	1 14/25"	2	€397.42
A	68514412606	Cast Iron	1800 RPM	6.18"	0.625" x 0.312"	-	3	1 14/25"	2	€397.42
A	68514412607	Cast Iron	1800 RPM	6.18"	3/4" x 3/8"	-	3	1 14/25"	2	€397.42
A	68514412426	Cast Iron	4200 RPM	5"	1/4" x 1/8"	-	3	1"	2	€187.67
A	68514435882	Cast Iron	4200 RPM	5"	0.188" x 0.094"	-	3	1"	2	€187.67
A	68514412589	Cast Iron	1800 RPM	6.18"	0.312" x 0.156"	-	3	1 14/25"	2	€397.42
A	68514412602	Cast Iron	1800 RPM	6.18"	0.625" x 0.312"	-	3	1 14/25"	2	€397.42
A	68514412443	Cast Iron	4200 RPM	5"	0.625" x 0.312"	-	3	1"	2	€187.67
A	68514412442	Cast Iron	4200 RPM	5"	1/2" x 1/4"	-	3	1"	2	€187.67
A	68514412591	Cast Iron	1800 RPM	6.18"	0.375" x 0.188"	-	3	1 14/25"	2	€397.42
A	68514446758	Cast Iron	1800 RPM	6.18"	0.375" x 0.188"	-	3	1 14/25"	2	€397.42
A	68514412432	Cast Iron	4200 RPM	5"	0.375" x 0.188"	-	3	1"	2	€187.67
A	68514441807	Cast Iron	4200 RPM	5"	0.625" x 0.312"	-	3	1"	2	€187.67
A	68514412441	Cast Iron	4200 RPM	5"	-	-	3	1"	2	€187.67
A	68514426092	Cast Iron	4200 RPM	5"	1/2" x 1/4"	-	3	1"	2	€187.67
A	68514412438	Cast Iron	4200 RPM	5"	1/2" x 1/4"	-	3	1"	2	€187.67
A	68514426091	Cast Iron	4200 RPM	5"	1/2" x 1/4"	-	3	1"	2	€178.69
A	68514412436	Cast Iron	4200 RPM	5"	0.375" x 0.188"	-	3	1"	2	€187.67
A	68514412435	Cast Iron	4200 RPM	5"	0.375" x 0.188"	-	3	1"	2	€187.67
A	68514412434	Cast Iron	4200 RPM	5"	-	-	3	1"	2	€187.67
A	68514412433	Cast Iron	4200 RPM	5"	0.375" x 0.188"	-	3	1"	2	€187.67

LOVEJOY -

AL Type Hubs With Keyway, Inch Bores

Style	Model	Keyway Size	Max. Speed	Number Of Jaws	Set Screw Style Coupling Location Size	Hub Type	Nominal Torque	Max. Bore	Dimension Hd	Price
A	68514418052	1/2" x 1/4"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€85.42
A	68514418053	1/2" x 1/4"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€133.21
A	68514417887	1/4" x 1/8"	7000 RPM	3	11/25"	2	318 lbs.-in.	1.187"	2.06"	€50.68
A	68514417857	1/4" x 1/8"	9000 RPM	3	11/25"	1	194 lbs.-in.	1 1/8"	2 3/25"	€26.09
A	68514417983	1/4" x 1/8"	5000 RPM	3	3/4"	1	792 lbs.-in.	-	3.31"	€102.41
A	68514417886	1/4" x 1/8"	7000 RPM	3	11/25"	2	318 lbs.-in.	1.187"	2.06"	€68.04
A	68514418043	1/4" x 1/8"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€133.21
A	68514418041	1/4" x 1/8"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€133.21
A	68514426094	1/4" x 1/8"	5000 RPM	3	3/4"	1	792 lbs.-in.	1 5/8"	3.31"	€102.41
A	68514418042	1/4" x 1/8"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€90.81
A	68514417981	1/4" x 1/8"	5000 RPM	3	3/4"	1	792 lbs.-in.	1 5/8"	3.31"	€102.41
A	68514418040	1/4" x 1/8"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€133.21
A	68514417856	1/4" x 1/8"	9000 RPM	3	11/25"	1	194 lbs.-in.	1 1/8"	2 3/25"	€38.16
A	68514417890	1/4" x 1/8"	7000 RPM	3	11/25"	2	318 lbs.-in.	1.187"	2.06"	€51.47
A	68514417858	1/4" x 1/8"	9000 RPM	3	11/25"	1	194 lbs.-in.	1 1/8"	2 3/25"	€39.34
A	68514417889	1/4" x 1/8"	7000 RPM	3	11/25"	2	318 lbs.-in.	1.187"	2.06"	€50.68
A	68514417924	1/4" x 1/8"	7000 RPM	3	11/25"	1	417 lbs.-in.	1 3/8"	2.53"	€79.60
A	68514417923	1/4" x 1/8"	7000 RPM	3	11/25"	1	417 lbs.-in.	1 3/8"	2.53"	€79.60
A	68514417928	1/4" x 1/8"	7000 RPM	3	11/25"	1	417 lbs.-in.	1 3/8"	2.53"	€79.60
A	68514418039	1/4" x 1/8"	5000 RPM	3	0.63"	2	1240 lbs.-in.	1 7/8"	3.19"	€133.21
A	68514417926	1/4" x 1/8"	7000 RPM	3	11/25"	1	417 lbs.-in.	1 3/8"	2.53"	€79.60
A	68514417927	1/4" x 1/8"	7000 RPM	3	11/25"	1	417 lbs.-in.	1 3/8"	2.53"	€79.60
A	68514417984	1/4" x 1/8"	5000 RPM	3	3/4"	1	792 lbs.-in.	1 5/8"	3.31"	€102.41
A	68514417982	1/4" x 1/8"	5000 RPM	3	3/4"	1	792 lbs.-in.	1 5/8"	3.31"	€102.41
A	68514476519	1/8"	9000 RPM	3	0.34"	2	144 lbs.-in.	7/8"	-	€54.25

12...9 10

Jaw Coupling Hubs

Jaw couplings are a type of flexible couplings designed to link two rotating shafts that are not properly aligned for transferring the rotational power or torque from one shaft to another. The jaw couplings are suitable for diverse industrial applications due to their versatile & robust construction and good speed capability, chemical resistance & dampening capability. Jaw couplings are easy to install, as they consist of only two jaw coupling hubs and a spider. These jaw coupling hubs are attached to the shafts and the spider flexes between the hubs for accommodating the misalignment & shocks. Shaft misalignments are mostly radial, parallel or angular and cause complications to transferring rotational power from one shaft to the other in the form of loads, vibrations, stresses and other forces, which change as per the type of misalignment.
The jaw coupling hubs are popular due to their fail-safe design that ensures interlocking of the coupling & continued operation (up to a certain extent) even after the elastomeric spider fails, wears out or gets loosened. Unlike gear, grid or chain couplings, jaw coupling hubs are also maintenance-free as they do not require periodic application of grease or additional maintenance (provided that the spider remains intact). These jaw coupling hubs are made of cast iron, powder metal, sintered iron, sintered carbon steel, steel or zinc alloy to ensure high compression strength and durability. They are also offered in aluminium or stainless steel construction for lightweight and resistance to corrosion in food & pharmaceutical environments.
Lovejoy jaw coupling hubs are available in two broad types: straight jaw coupling hubs and curved jaw coupling hubs. Straight jaw hubs are made from a diverse range of materials and feature straight jaws for adjusting to various styles of spiders. They are used with open centre spiders, snap wrap spiders with retainer rings; closed centre spiders having Nitrile Butadiene (Buna N), urethane, Hytrel or bronze construction. Curved jaw coupling hubs (Lovejoy CJ Series) on the other hand, feature a curved jaw profile that concentrates the torque to the central region of the spider's limbs, thereby improving the efficiency of the elastomer material and reduces rotational backlash. They are mostly used with open centre elastomeric spiders to accommodate shafts having little separation.
Choose from a wide range of these jaw coupling hubs, available in both unbored and bored variants on Raptor Supplies. The bored variants are offered in bore sizes ranging from 1/8 to 4 inches.

Uses

Jaw coupling hubs are ideal for linking two shafts when used in conjunction with elastomeric inserts or spiders to form couplings. These jaw coupling hubs are used in a wide range of motion control (servo) applications, such as conveyors, escalators, motor vehicles, forestry, agricultural & mining equipment in robotics, automobile, aeronautics and space industries.

Features

Jaw coupling hubs in conjunction with spiders form jaw couplings and are used to transmit rotational power from one shaft to another.
They are equipped with an optional bore or a hole at the centre of the hub for ease of mounting on the shafts. Users can identify the bore size or bore diameter of a hub for selecting a correct sized jaw coupling hub for their use.
These hub bores may also have keyway slots to fit a key and prevent slipping of the hub on the rotating shaft. Keyway size indicates the height and width of the keyway slot to fit in the right sized key.
The jaw coupling hubs have an effective length through the bore to help them slide-fit on the shaft & the optional key.
These hubs handle the torque from the driving shaft and pass it onto a driven shaft while handling shocks, vibrations & angular misalignment. Torque refers to the applied force causing rotational motion. In imperial units, torque is expressed as inch-pounds (in.-lbs.) whereas, in metrics, it is expressed as Newton-meters (Nm).
They have diverse types of designs, constructions and bore tolerances for handling a wide range of rotational speeds (maximum speed).
These jaw coupling hubs feature fail-safe mechanism for continuing the operation up to a certain time, in case the shock-absorbing spider inserts wear down or fail to interlock.
They provide highly reliable service without any metal to metal contact to prevent regular wear & tear.
These jaw coupling hubs are resistant to oil, dirt, moisture & grease for ensuring long term operation.

Working Mechanism

A jaw coupling is made of three parts: two metallic hubs (jaw coupling hub) and an elastomer insert / element or spider. The spider has many lobes to fit the jaws of hubs alternatively for a tight press fit. Once the machinery starts running & the driving shaft starts rotating, the hub jaws attached to the driving shaft push towards the driven hub jaws and thereby towards the stationary shaft.
The jaws being locked together leads to torque transfer and rotation of the stationary shaft. The jaw coupling torque is then transmitted through the elastomer / spider lobes compressed between the hub jaws. These elastomeric spider legs act as coupling absorbers and help in cushioning the force between the driving & driven jaws. They absorb the vibration and shock from torque transfer and consequently protect the surrounding components from getting damaged.

Standards and Approvals

Lovejoy jaw coupling hubs meet the ANSI/AGMA 9002-B04 or 9112-A04 and ISO 9001:2008 industry standards for superior performance of the hubs.

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