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Product Specifications:
| Item | Gear |
| Bore Dia. | 3/4" |
| Diametral Pitch | 16" |
| Face Width | 1/2" |
| Hub Type | No Hub |
| Key Way Size | 3/16" x 3/32" |
| Material | Steel |
| No. Of Teeth | 21 |
| Output Dia. | 1 11/25" |
| Overall Length | 1/2" |
| Pitch Dia. | 1.313" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Product Series | GB Series |
| Type | Plain |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 1.27 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Face Width | Diametral Pitch | Bore Dia. | Torque | Max. Torque | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
GB20 | 1 1/4" | 20 | 1/2" | 16" | 3/4" | - | - | Steel | €89.81 | |
![]() |
GB22 | 1 3/8" | 22 | 1/2" | 16" | 1" | - | - | Steel | €97.73 | |
![]() |
GB23 | 1.438" | 23 | 1/2" | 16" | 3/4" | - | - | Steel | €99.51 | |
![]() |
GB24 | 1 1/2" | 24 | 1/2" | 16" | 3/4" | - | - | Steel | €102.68 | |
![]() |
GB25 | 1.56" | 25 | 0.5" | 16 | - | 66.8 lbs.-in. @1800 RPM | 66.8 lbs.-in. @ 1800 RPM | Steel | €102.68 | |
![]() |
GB26 | 1 5/8" | 26 | 1/2" | 16" | 3/4" | - | - | Steel | €107.30 | |
![]() |
GB27 | 1.688" | 27 | 1/2" | 16" | 3/4" | - | - | Steel | €106.10 |
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BOSTON GEAR GB21 Change Gear, 16 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 21 Teeth, Steel
€92.05 /unit







