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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 1" |
| Bore Type | Minimum Plain Bore |
| Diametral Pitch | 8 |
| Face Width | 1 1/2" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 2 1/2" |
| Key Way Size | No Keyway Or Set Screw |
| Keyway | No Kwy, Setscrew |
| Length Through Bore | 2 3/8" |
| Material | Cast Iron |
| Max. Rated Torque | 964 N-m @ 600 RPM |
| Max. Torque | 964 lbs.-in. @ 600 RPM |
| No. Of Teeth | 40 |
| Origin | Reborable |
| Outside Dia. | 5 1/4" |
| Pitch Dia. | 5" |
| Pressure Angle | 20° |
| Product Datasheet | boston-gear-g101.pdf |
| Set Screw | No |
| Style | Hub |
| Torque @ 200 Rpm | 1550 lbs.-in. |
| Torque @ 300 Rpm | 1345 lbs.-in. |
| Torque @ 600 Rpm | 964 lbs.-in. |
| Torque @ 900 Rpm | 751 lbs.-in. |
| Type | B |
Shipping Info:
| Ship weight (kg) | 2.81 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Diametral Pitch | Bore Dia. | Type | Hub Projection | Max. Torque | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
YH44B | 5 1/2" | 44 | 2 1/2" | 8" | 1" | Web | 1" | - | €470.75 | |
![]() |
YH48B | 6" | 48 | 2 1/2" | 8" | 1" | Web | 1" | - | €497.05 | |
![]() |
YH56B | 7" | 56 | 2 1/2" | 8" | 1" | - | 1" | - | €558.31 | |
![]() |
YH60 | 7 1/2" | 60 | 2 1/2" | 8" | 1" | Web | 1" | - | €611.06 | |
![]() |
YH64B | 8" | 64 | 2 1/2" | 8" | 1" | Spoke | 1" | - | €547.47 | |
![]() |
YH72B | 9" | 72 | 2 1/2" | 8 | 1" | D | - | 2014 lbs.-in. @ 300 RPM | €682.34 | |
![]() |
YH80B | 10" | 80 | 3" | 8 | 1 1/8" | D | - | 2173 lbs.-in. @ 300 RPM | €642.90 |
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Contact us
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BOSTON GEAR YH40B Spur Gear, 8 Diametral Pitch, 20 Deg. Pressure Angle, 40 Teeth, Cast Iron
€438.30 /unit







