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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 1 1/8" |
| Bore Type | Bored To Size |
| Diametral Pitch | 6 |
| Face Width | 1 1/2" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 2.45" |
| Keyway | With Keyway |
| Length Through Bore | 2 3/8" |
| Material | Steel |
| Max. Rated Torque | 788 N-m @ 1200 RPM |
| No. Of Teeth | 18 |
| Outside Dia. | 3.33" |
| Pitch Dia. | 3" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Set Screw | Yes |
| Set Screw Size | 1.125 |
| Torque @ 1200 Rpm | 788 lbs.-in. |
| Torque @ 1800 Rpm | 603 lbs.-in. |
| Torque @ 200 Rpm | 1606 lbs.-in. |
| Torque @ 300 Rpm | 1455 lbs.-in. |
| Torque @ 600 Rpm | 1135 lbs.-in. |
| Torque @ 900 Rpm | 930 lbs.-in. |
| Type | A |
Shipping Info:
| Ship weight (kg) | 1.58 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Diametral Pitch | Bore Dia. | Type | Keyway | Bore Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
NJ12 B | 2" | 12 | 1 11/25" | 6 | 1" | - | No | - | €172.13 | |
![]() |
NJ16 B | 2.667" | 16 | 2.13" | 6 | 1" | - | No | - | €223.88 | |
![]() |
NJ18 B | 3" | 18 | 2.45" | 6 | 1" | - | No | - | €270.41 | |
![]() |
NJ24A | 4" | 24 | 3" | 6 | 1 1/8" | - | No | - | €407.65 | |
![]() |
NJ30A | 5" | 30 | 4" | 6 | 1 1/8" | - | No | - | €491.08 | |
![]() |
NJ11B | 2" | 11 | 1.44" | 6 | - | - | No Kwy Or Setscrew | 1" | €170.95 | |
![]() |
NJ14B | 2.33" | 14 | 1.78" | 6 | - | - | No Kwy Or Setscrew | 1" | €190.40 |
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BOSTON GEAR NJ18B-1 1/8 Spur Gear, 6 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 18 Teeth, Steel
€349.54 /unit



