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Product Specifications:
| Item | Taper Bushing |
| Barrel Dia. | 4 1/4" |
| Bolt Circle Dia. | 4" |
| Bore Dia. | 1 1/4" |
| Bore Size | 1 1/4" |
| Class | Class 20, Class 30 |
| Hub Dia. | 6 1/4", 5 3/4" |
| Key Way Size | 1/4" x 1/8" |
| Length | 3" |
| Material | Cast Iron |
| No. Of Bolt Holes | 2 |
| Product Datasheet | martin-sprocket-1008-11-16.pdf |
| Screw Size | 5/8"-11 x 1 1/4" |
| Suitable For Use With | Taper Bushed Parts |
| Taper | 8° |
| Torque | 24000 lbs.-in. |
| Type | Standard |
Shipping Info:
| Ship weight (kg) | 4.12 |
| Ship height (cm) | 7.62 |
| Ship length (cm) | 10.8 |
| Ship width (cm) | 10.8 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Bore Dia. | Key Way Size | Screw Size | Hub Dia. | Bore Size | Material | Bolt Circle Dia. | Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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3030 15/16 | 1 5/16" | 5/16" x 5/32" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | - | Cast Iron | 4" | Standard | €133.80 | |
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3030 1 | 1" | 1/4" x 1/8" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | 1" | Cast Iron | 4" | Standard | €133.80 | |
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3030 1 1/8 | 1 1/8" | 1/4" x 1/8" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | 1 1/8" | Cast Iron | 4" | Standard | €133.80 | |
![]() |
3030 1 3/16 | 1 3/16" | 1/4" x 1/8" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | - | Cast Iron | 4" | Standard | €133.80 | |
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3030 1 3/8 | 1 3/8" | 5/16" x 5/32" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | 1 3/8" | Cast Iron | 4" | Standard | €133.80 | |
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3030 1 7/16 | 1 7/16" | 3/8" x 3/16" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | 1 7/16" | Cast Iron | 4" | Standard | €133.80 | |
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3030 1 1/2 | 1 1/2" | 3/8" x 3/16" | 5/8"-11 x 1 1/4" | 6 1/4", 5 3/4" | 1 1/2" | Cast Iron | 4" | Standard | €133.80 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 3030 1 1/4 Taper Bushing, 1.250 Inch Bore, 1/4 x 1/8 Inch Key, 3 Inch Length, Cast Iron
€133.80 /unit






