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Product Specifications:
| Item | Worm Gear |
| Diametral Pitch | 12" |
| Face Width | 1/2" |
| Gear Ratio | 50:1 |
| Hub Dia. | 1 11/25" |
| Hub Projection | 0.62" |
| Material | Bronze |
| No. Of Teeth | 50 |
| No. Of Threads | 1 |
| Output Dia. | 4.37" |
| Overall Length | 1 3/25" |
| Pitch Dia. | 4.167" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-cd1145.pdf |
| Product Series | GB Series |
| Rotation | Right Hand |
| Type | Web |
Shipping Info:
| Ship weight (kg) | 0.88 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.84 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Gear Ratio | Overall Length | Type | Rotation | Material | Price | |
|---|---|---|---|---|---|---|---|---|
![]() |
GB1050A | 20:1 | 1" | Plain | Right Hand | Bronze | €266.46 | |
![]() |
GB1052A | 40:1 | 1 3/25" | Web | Right Hand | Bronze | €373.16 | |
![]() |
GB1054 | 80:1 | 1 1/4" | Web | Right Hand | Bronze | €941.51 | |
![]() |
GB1055 | 100:1 | 1 1/4" | Web | Right Hand | Bronze | €990.05 | |
![]() |
GB1260A | 60:1 | 1 3/25" | Web | Right Hand | Bronze | €556.65 | |
![]() |
GB1051 | 30:1 | 1 3/25" | Web | Right Hand | Bronze | €318.61 |
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BOSTON GEAR GB1053A Worm Gear, 12 Diametral Pitch, 14.5 PA, 50 Teeth, Right Hand, Bronze
€437.41 /unit






