Spline Shafts And Couplings

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Spline shafts and couplings are used in power transmission systems to transfer torque and rotation from one component to another. Spline shafts have a long, cylindrical rod-type design with...Read more

StyleModelOutside Dia.Total LengthBore SizeBore Size ABore Size BMaterialGradeScrew Material
AUPS-A012008P1 3/4"2 1/2"-3/4"1/2"AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A012012P1 3/4"2 1/2"3/4"--AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A008008P1 3/8"2"1/2"--AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100008P2"3"-1"1/2"AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100012P2"3"-1"3/4"AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100100P2"3"1"--AluminumGrade 2024-T351Alloy Steel
RFQ
HUB CITY -

Involute Splined Couplings

StyleModelMPNPrice
A0332-000270332-00027€106.92
B0332-000280332-00028€112.55
C0332-000300332-00030€250.47
D0332-000430332-00043€115.38
E0332-003500332-00350€119.60
TB WOODS -

GCF Form Flex Couplings

TB Wood's GCF Form-Flex couplings are designed to transmit torque while compensating for angular, parallel and axial misalignments between two connected shafts. These couplings are integrated with a flexible disc to minimise the misalignment errors and feature a high torsional stiffness for maintaining the structural integrity of the system.

StyleModelHp Rating @ 100 RpmMax. RpmMax. BoreFree End FloatDimension GDimension BDimension DAdapter Bcd
AGCF340-31-12SAE64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"11 5/8"
RFQ
AGCF340-35-20HD64 hp2600 RPM3 3/4"0.06"0.57"2 22/25"5.31"18 1/2"
RFQ
AGCF340-31-20HD64 hp2600 RPM3 3/4"0.06"0.57"2 22/25"5.31"18 1/2"
RFQ
AGCF340-31-14SAE64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"13 1/8"
RFQ
AGCF340-31-12HD64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"11 1/2"
RFQ
AGCF340-35-22SAE64 hp2400 RPM3 3/4"0.06"0.57"2 22/25"5.31"21 3/8"
RFQ
AGCF340-35-22HD64 hp2400 RPM3 3/4"0.06"0.57"2 22/25"5.31"20 1/2"
RFQ
AGCF340-35-20SAE64 hp2600 RPM3 3/4"-0.57"2 22/25"5.31"19 1/4"
RFQ
AGCF340-31-18SAE64 hp2900 RPM3 3/4"0.06"0.57"2 22/25"5.31"17 1/4"
RFQ
AGCF340-35-18SAE64 hp2900 RPM3 3/4"0.06"0.57"2 22/25"5.31"17 1/4"
RFQ
AGCF340-35-18HD64 hp2900 RPM3 3/4"0.06"0.57"2 22/25"5.31"16 3/4"
RFQ
AGCF340-31-20SAE64 hp2600 RPM3 3/4"0.06"0.57"2 22/25"5.31"19 1/4"
RFQ
AGCF340-35-12HD64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"11 1/2"
RFQ
AGCF340-35-12SAE64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"11 5/8"
RFQ
AGCF340-31-22SAE64 hp2400 RPM3 3/4"0.06"0.57"2 22/25"5.31"21 3/8"
RFQ
AGCF340-35-14HD64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"12 1/2"
RFQ
AGCF340-35-14SAE64 hp3400 RPM3 3/4"0.06"0.57"2 22/25"5.31"13 1/8"
RFQ
AGCF412-45-28SAE190 hp1800 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"27 1/4"
RFQ
AGCF412-50-18HD190 hp2500 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"16 3/4"
RFQ
AGCF412-50-18SAE190 hp2500 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"17 1/4"
RFQ
AGCF412-50-28SAE190 hp1800 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"27 1/4"
RFQ
AGCF412-50-20SAE190 hp2500 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"19 1/4"
RFQ
AGCF412-50-22HD190 hp2400 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"20 1/2"
RFQ
AGCF412-50-22SAE190 hp2400 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"21 3/8"
RFQ
AGCF412-50-26HD190 hp2000 RPM4 1/2"2/25"1 1/4"4 1/4"7.14"24 1/2"
RFQ
StyleModelMPN
A13022640551302264055
RFQ
A13022640561302264056
RFQ
A13022640661302264066
RFQ
A13022640801302264080
RFQ
A13022641021302264102
RFQ
A13022641041302264104
RFQ
StyleModelBore SizeMax. BoreHp Rating @ 100 RpmMax. RpmDimension DMaterialTypeKeyway SizePrice
A685144138723/4"3/4"7/25 hp20000 RPM2 22/25"SteelFlange To Shaft3/16" x 3/32"€715.63
A685144138705/8"3/4"7/25 hp20000 RPM2 22/25"SteelFlange To Shaft3/16" x 3/32"€698.43
StyleModelMax. BoreHp Rating @ 100 RpmMax. RpmDimension DDimension HdMin. BorePin Location (dimension Sl)Wind-up Angle At Max. TorquePrice
A685144139231"13/100 hp30000 RPM1 22/25"2"3/8"1/2"1.82°€342.29
A685144139522 1/8"3 1/50 hp3000 RPM5"3 3/4"3/4"0.82"0.85°€1,666.03
StyleModelMax. BoreHp Rating @ 100 RpmMax. RpmDimension DBore SizeDimension HdOverall LengthPin Location (dimension Sl)Price
A685144137401 1/4"7/25 hp20000 RPM2.38"3/8"2 1/2"4.27"0.62"€219.93
A685144136951"13/100 hp30000 RPM1 22/25"0.438"2"3 13/25"1/2"€173.58
StyleModelMax. BoreMax. RpmOutside Dia.Dimension LDimension HdLength Through BoreDimension BcRated TorquePrice
A685144260812.225"5600 RPM6 7/25"1.81"3 11/25"2 1/2"4 14/25"2000 lbs.-in.€1,319.53
A685144260854"2800 RPM11.09"3 11/25"6 1/4"4.34"8 1/4"12000 lbs.-in.€4,739.99
StyleModelOutside Dia.Total LengthBore Size ABore Size BBore SizeMaterialGradeScrew Material
AUPS-A012008N1 3/4"2 1/2"3/4"1/2"-AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A012012N1 3/4"2 1/2"---AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A008008N1 3/8"2"--1/2"AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100100N2"3"--1"AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100008N2"3"1"1/2"-AluminumGrade 2024-T351Alloy Steel
RFQ
AUPS-A100012N2"3"1"3/4"-AluminumGrade 2024-T351Alloy Steel
RFQ
StyleModelMax. BoreOutside Dia.Dimension HdOverall LengthMin. BoreLength Through BoreSizeNominal TorquePrice
A685144260744 1/2"10"7"11.62"2 1/8"4 3/4"H306733396 lbs.-in.-
RFQ
A685144260765 5/8"12"8 3/4"13 22/25"3"5.63"H366764812 lbs.-in.-
RFQ
A685144554716 1/4"13 1/4"9 3/4"15.38"3 1/4"6 1/4"H406788224 lbs.-in.€14,758.47
A685144554747"14 1/2"10 3/4"17 3/25"3 1/2"7"H4567119700 lbs.-in.-
RFQ
StyleModelAngular MisalignmentMax. RpmMax. BoreHp Rating @ 100 RpmDimension BDimension CSizeDimension H
ATFI00380.5°16500 RPM3"5 17/50 hp6.3"1.77"382.891"
RFQ
ATFI01400.5°12000 RPM2 3/4"19 7/10 hp9 21/25"2.95"140-
RFQ
ATFI02600.5°10000 RPM3 11/25"36 1/2 hp11.42"3.35"2604.662"
RFQ
ATFI04000.5°8500 RPM116"-13.78"4.13"4005.568"
RFQ
ATFI07500.5°7500 RPM132"105 hp16.14"4 18/25"7506.46"
RFQ
ATFI13100.5°6500 RPM162"184 hp19.29"5.71"13107 19/25"
RFQ
ATFI00270.5°20000 RPM-3 79/100 hp5.91"1.57"272.143"
RFQ
ATFI120000.33°3000 RPM11 1/2"1685 hp36.38"11 1/2"1200016.02"
RFQ
ATFI19000.33°5600 RPM6 3/4"267 hp19.69"5.91"19009.17"
RFQ
ATFI25000.33°5200 RPM197"351 hp21.57"6.46"25009.45"
RFQ
ATFI33000.33°4900 RPM220"463 hp23.78"7.17"330010.63"
RFQ
ATFI60000.33°4000 RPM265"843 hp28.35"9.06"6000-
RFQ
ATFI85000.33°3600 RPM10.63"1194 hp33.07"10 6/25"850014.37"
RFQ
HUB CITY -

Involute Splined Shafts

StyleModelMPNPrice
A0332-000250332-00025€230.76
B0332-003950332-00395€284.22
TB WOODS -

AP Form Flex Couplings

TB Wood's AP Series Form-Flex couplings transfer mechanical power from one shaft to another. They are ideal for pumps, centrifugal & screw compressors, fans, blowers, mixers and turbo compressors. These couplings offer wider separation between two shafts than other couplings, allowing servicing operations without moving or disconnecting the equipment. They accommodate angular, parallel and axial misalignment. Choose from a wide range of these Form-Flex couplings, available in 1.19, 1.38 and 1.63 inch bore sizes on Raptor Supplies.

StyleModelMax. BoreHp Rating @ 100 RpmFree End FloatMax. RpmDimension GDimension HDimension JInertia At D Min.Price
AAP101 1/4"1 27/100 hp1/25"7500 RPM0.27"1 4/5"14/25"4.48 lbs.-sq. ft.-
RFQ
AAP151 3/4"2 1/2 hp0.042"6700 RPM8/25"2"22/25"8.86 lbs.-sq. ft.-
RFQ
AAP201.69"3 49/100 hp0.055"6200 RPM0.34"2 2/5"0.79"13.8 lbs.-sq. ft.-
RFQ
AAP252"6 3/100 hp0.06"5500 RPM0.45"2 4/5"1"38.8 lbs.-sq. ft.€10.66
AAP522/25"12/25 hp0.03"8500 RPM6/25"1.3"0.54"1.87 lbs.-sq. ft.-
RFQ
HUB CITY -

Precision Splined Hubs

StyleModelMPNPrice
A0332-000310332-00031€121.88
RFQ
B0332-000330332-00033€106.64
RFQ
C0332-000370332-00037€290.54
RFQ
D0332-000730332-00073€175.18
RFQ
E0332-000740332-00074€236.13
RFQ
F0332-000930332-00093€175.18
RFQ
HUB CITY -

Splined Couplings

StyleModelMPNPrice
A0332-000660332-00066€120.68
A0332-003200332-00320€112.55
A0332-003360332-00336€97.49
A0332-003370332-00337€97.49
A0332-003380332-00338€109.86
A0332-003400332-00340€115.08
B0332-003410332-00341€77.26
RFQ
A0332-003420332-00342€134.62
A0332-003440332-00344€94.27
C0332-003450332-00345€73.97
RFQ
A0332-003460332-00346€236.39
A0332-003480332-00348€137.90
A0332-003490332-00349€246.02
A0332-003510332-00351€295.53
A0332-003650332-00365€151.63
A0332-003670332-00367€182.57
HUB CITY -

Splined Shafts

StyleModelMPNPrice
A0332-000230332-00023€182.57
A0332-000260332-00026€305.35
A0332-000380332-00038€606.53
A0332-000390332-00039€617.73
A0332-003900332-00390€112.07
RFQ
A0332-003910332-00391€205.78
A0332-003930332-00393€199.60
B0332-003940332-00394€87.04
RFQ
A0332-003970332-00397€436.33
A0332-003980332-00398€284.22
A0332-003990332-00399€448.69
BALDOR / DODGE -

Coupling And Drive Shafts

StyleModelGear BoxPrice
A3520912€412.62
A3520902€412.62
A2435633€491.97
StyleModelMax. BoreHp Rating @ 100 RpmFree End FloatMax. RpmDimension BDimension DDimension JSize
AAR101 1/4"1 27/100 hp0.02"7500 RPM2.27"0.27"0.59"10
RFQ
AAR151 3/4"2 1/2 hp0.021"6700 RPM2.58"8/25"22/25"15
RFQ
AAR201.69"3 49/100 hp0.027"6200 RPM2.98"0.34"0.79"20
RFQ
AAR252"6 3/100 hp0.03"5500 RPM3.69"0.45"1"25
RFQ
AAR302.38"11 hp0.032"5000 RPM4.23"0.47"1.14"30
RFQ
AAR353 3/4"18 hp0.042"4400 RPM5.05"0.55"0.97"35
RFQ
AAR522/25"12/25 hp0.015"8500 RPM2 6/25"6/25"0.54"5
RFQ
TB WOODS -

AA Form Flex Couplings

TB Wood's Form-Flex couplings connect two shafts and transmit torque / power effectively from one shaft to the other. They compensate for angular, parallel and axial misalignment between two connected shafts at a closer distance. These AA couplings feature a flexible disc to minimise misalignment forces and allow easy interchangeability, thereby reducing downtime & maintenance time. Choose from a wide range of these Form-Flex couplings, available in torque ratings ranging from 2363 to 17010 lb-inch on Raptor Supplies.

StyleModelMax. BoreHp Rating @ 100 RpmFree End FloatMax. RpmDimension GDimension BDimension HDimension J
AAA101 1/4"1 27/100 hp1/25"3500 RPM0.27"3.73"1.3"14/25"
RFQ
AAA151 3/4"2 1/2 hp0.042"3450 RPM8/25"3.82"2"22/25"
RFQ
AAA201.69"3 49/100 hp0.055"3350 RPM0.34"4.38"2 2/5"0.79"
RFQ
AAA252"6 3/100 hp0.06"3200 RPM0.45"5.26"2 4/5"1"
RFQ
AAA302.38"11 hp0.065"3000 RPM0.47"6 6/25"3.3"1.14"
RFQ
AAA353 3/4"18 hp0.085"2800 RPM0.55"6.91"4.15"0.97"
RFQ
AAA522/25"12/25 hp0.03"3600 RPM6/25"3.23"1.3"0.54"
RFQ
STAFFORD MFG -

Solution Series, UPS Sliding Mounts

StyleModelOutside Dia.Total LengthInside Dia.MaterialGradeScrew MaterialFinishScrew Size
AUPS-A012SM1 3/4"1 3/4"3/4"AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
BUPS-A012SMU1 3/4"3"3/4"AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
AUPS-A008SM1 3/8"1 3/8"-AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
BUPS-A008SMU1 5/8"2 3/4"1/2"AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
BUPS-A100SMU2"3 1/4"1"AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
AUPS-A100SM2"2 1/8"1"AluminumGrade 2024-T351Alloy SteelBlack Anodized10-32
RFQ
StyleModelMax. BoreHp Rating @ 100 RpmMax. RpmDimension HdMin. BoreLength Through BorePin Location (dimension Sl)Wind-up Angle At Max. TorquePrice
A685144130400.313"1/20 hp30000 RPM0.73"1/8"0.38"4/25"4.5°€410.25
A685144260950.313"1/20 hp30000 RPM0.73"1/8"0.38"4/25"4.5°€326.13
A685144442171/2"13/100 hp30000 RPM1 1/25"0.313"16/25"0.31"4.5°€528.90
A685144131391/2"13/100 hp30000 RPM1 1/25"0.313"16/25"0.31"4.5°€528.90
A685144510461/2"13/100 hp30000 RPM1 1/25"0.313"16/25"0.31"4.5°€420.46
A685144130151/4"3/100 hp30000 RPM0.61"1/8"0.31"4/25"€336.31
A685144510373/4"7/25 hp20000 RPM1.42"3/8"21/25"0.41"4.5°€715.63
A685144130843/8"3/50 hp30000 RPM0.86"1/4"13/25"1/4"4.5°€498.40
A685144132095/8"1/5 hp20000 RPM1.42"0.313"21/25"0.38"€579.75

Spline Shafts And Couplings

Hub City spline shafts are specially designed for transmitting high amount of torque force and rotation. These plain and involute splined shafts feature 1215 cold-rolled steel to deliver fair vibration damping and excellent chemical resistance. We also offer Hub City couplings in 1144 stress-proofed steel to connect and transmit torque between two rotating shafts. These couplers feature Kwik-D-Tach connection for safe and secure attachments.

Working Mechanism

  • The shafts of the machinery are positioned in such as way that their ends are facing each other.
  • The spline shaft is inserted securely into the grooves of the coupling.
  • The coupling is then fastened onto the end of the other shaft by using bolts or clamps.
  • When torque is applied to one of the shafts, it is transmitted through the spline shaft and coupling to the other shaft, causing both shafts to rotate at the same speed.

Frequently Asked Questions

What is overall length tolerance?

OAL (overall length tolerance) refers to the allowable deviation from the nominal or desired length of the coupling. It helps to position and align the coupling on the shafts it is connecting.

What is the purpose of keyways in Lovejoy couplings?

Keyways are grooves or slots that are machined into the bore of the coupling hub and include a matching key that is installed in the keyway to connect the hub to the shaft. These keyways help transmit torque, ease installation and provide accurate alignment between the shaft and the coupling.

How to maintain a spline coupling?

  • Regular visual inspections are needed to identify any signs of wear or damage of the spline coupling, such as cracks and corrosion.
  • Ensure the coupling is properly aligned to maintain smooth operation and prevent premature wear.
  • Regularly lubricate the coupling to prevent wear and reduce friction.
  • Ensure that spline couplings are not subjected to overload conditions, as this can cause permanent deformation and reduce the strength of the spline teeth.

How do I select the right type of shaft coupling for my application?

The choice of coupling depends on shaft misalignment, torque requirements, speed and environmental conditions.

What is the difference between rigid couplings and flexible couplings?

Rigid couplings do not allow any angular or parallel misalignment between shafts. They provide a solid, backlash-free connection. In contrast, flexible couplings accommodate some degree of misalignment and are often used to dampen vibrations and shock loads in machinery.

How do I calculate the torque capacity of a spline shaft?

    To calculate the torque capacity of a spline shaft, you can use the formula:
    • Torque (T) = Shaft Diameter (D) x Material Strength (S) x Safety Factor (SF)

What is the difference between external spline and internal spline configurations?

External spline refers to the presence of the splines on the outside surface of a shaft, while internal spline refers to the splines inside a cylindrical bore.

How does rigid, flexible and fluid connection coupling differ from each other?

Rigid couplings provide a solid connection with no flexibility, flexible couplings offer misalignment compensation, and fluid couplings use hydraulic principles for torque transmission and speed control.