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Product Specifications:
| Item | Taper Bushing |
| Barrel Dia. | 3 3/8" |
| Bolt Circle Dia. | 3 1/4" |
| Bore Dia. | 2 3/16" |
| Bore Size | 2 3/16" |
| Class | Class 20, Class 30 |
| Hub Dia. | 4 3/4", 4 1/2" |
| Key Way Size | 1/2" x 1/4" |
| Length | 2 1/2" |
| Material | Cast Iron |
| No. Of Bolt Holes | 2 |
| Product Datasheet | martin-sprocket-1008-11-16.pdf |
| Screw Size | 1/2"-13 x 1" |
| Suitable For Use With | Taper Bushed Parts |
| Taper | 8° |
| Torque | 11300 lbs.-in. |
| Type | Standard |
Shipping Info:
| Ship weight (kg) | 1.25 |
| Ship height (cm) | 6.35 |
| Ship length (cm) | 8.59 |
| Ship width (cm) | 8.59 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Bore Dia. | Key Way Size | Screw Size | Hub Dia. | Bore Size | Material | Type | Bolt Circle Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
2525 3/4 | - | 3/16" x 3/32" | - | - | 3/4" | Cast Iron | - | - | €90.19 | |
![]() |
2525 7/8 | - | - | - | - | - | Cast Iron | - | - | €90.19 | |
![]() |
2525 1 | 1" | 1/4" x 1/8" | 1/2"-13 x 1" | 4 3/4", 4 1/2" | - | Cast Iron | Standard | 3 1/4" | €90.19 | |
![]() |
2525 1 1/16 | 1 1/16" | 1/4" x 1/8" | 1/2"-13 x 1" | 4 3/4", 4 1/2" | - | Cast Iron | Standard | 3 1/4" | €90.19 | |
![]() |
2525 1 1/8 | 1 1/8" | 1/4" x 1/8" | 1/2"-13 x 1" | 4 3/4", 4 1/2" | 1 1/8" | Cast Iron | Standard | 3 1/4" | €90.19 | |
![]() |
2525 1 3/16 | 1 3/16" | 1/4" x 1/8" | 1/2"-13 x 1" | 4 3/4", 4 1/2" | - | Cast Iron | Standard | 3 1/4" | €90.19 | |
![]() |
2525 1 1/4 | 1 1/4" | 1/4" x 1/8" | 1/2"-13 x 1" | 4 3/4", 4 1/2" | 1 1/4" | Cast Iron | Standard | 3 1/4" | €90.19 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 2525 2 3/16 Taper Bushing, 2.188 Inch Bore, 1/2 x 1/4 Inch Key, 2.5 Inch Length, Cast Iron
€90.19 /unit




