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Product Specifications:
| Item | Gear |
| Bore Dia. | 1 1/4" |
| Diametral Pitch | 10" |
| Face Width | 1" |
| Hub Type | No Hub |
| Key Way Size | 5/16" x 5/32" |
| Material | Steel |
| No. Of Teeth | 21 |
| Output Dia. | 2.3" |
| Overall Length | 1" |
| Pitch Dia. | 2.1" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Product Series | GF Series |
| Type | Plain |
Shipping Info:
| Ship weight (kg) | 0.23 |
| 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 | Diametral Pitch | Torque | Max. Torque | Material | Face Width | Pressure Angle | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
GF20 | 2" | 20 | 10" | - | - | Steel | 1" | 14.5° | €142.88 | |
![]() |
GF23 | 2.3" | 23 | 10 | 308.0 lbs.-in. @1200 RPM | 308 lbs.-in. @ 1200 RPM | Steel | 1" | - | €169.93 | |
![]() |
GF24 | 2 2/5" | 24 | 10" | - | - | Steel | 1" | 14.5° | €169.93 | |
![]() |
GF25 | 2 1/2" | 25 | 10" | - | - | Steel | 1" | 14.5° | €176.94 | |
![]() |
GF26 | 2.6" | 26 | 10 | 338.9 lbs.-in. @1200 RPM | 338.9 lbs.-in. @ 1200 RPM | Steel | 1" | - | €191.29 | |
![]() |
GF27 | 2.7" | 27 | 10" | - | - | Steel | 1" | 14.5° | €191.00 | |
![]() |
GF28 | 2.8" | 28 | 10 | 357.0 lbs.-in. @1200 RPM | 357 lbs.-in. @ 1200 RPM | Steel | 1" | - | €195.75 |
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Contact us
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BOSTON GEAR GF21 Change Gear, 10 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 21 Teeth, Steel
€150.80 /unit







