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Product Specifications:
| Item | Quick Detachable Bushing |
| Barrel Dia. | 2.812" |
| Bolt Circle Dia. | 3.312" |
| Bore Dia. | 2 1/4" |
| Bore Size | 2 1/4" |
| Flange Dia. | 3 7/8" |
| Flange Thickness | 0.563" |
| Hub Dia. | 4 3/4" |
| Key Way Size | 1/2" x 1/8" |
| Length | 1.938" |
| Material | Ductile Iron |
| No. Of Bolt Holes | 3 |
| Screw Size | 5/16"-18 x 2" |
| Type | Standard |
Shipping Info:
| Ship weight (kg) | 0.85 |
| Ship length (cm) | 4.93 |
| Country of Origin | US |
Product Variants
| Product | Model | Material | Bore Dia. | Type | Bore Size | Key Way Size | Flange Thickness | Hub Dia. | Bolt Circle Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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SK 1/2 | Steel | 1/2" | Standard | 1/2" | 1/8" x 1/16" | 0.563" | 4 1/2" | 3.312" | €69.65 | |
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SK 9/16 | Steel | - | - | 9/16" | 1/8" x 1/16" | - | - | - | €69.65 | |
![]() |
SK 5/8 | Steel | 5/8" | Standard | 5/8" | 3/16" x 3/32" | 0.563" | 4 1/2" | 3.312" | €69.65 | |
![]() |
SK 11/16 | Steel | 0.688" | Standard SK | 11/16" | 3/16" x 3/32" | 0.563" | - | 3.312" | €69.65 | |
![]() |
SK 3/4 | Steel | 3/4" | Standard | 3/4" | 3/16" x 3/32" | 0.563" | 4 1/2" | 3.312" | €69.65 | |
![]() |
SK 13/16 | Steel | 0.813" | Standard SK | 13/16" | 3/16" x 3/32" | 0.563" | - | 3.312" | €69.65 | |
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SK 7/8 | Steel | 7/8" | Standard | 7/8" | 3/16" x 3/32" | 0.563" | 4 1/2" | 3.312" | €69.65 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET SK 2 1/4 Quick Detachable Bushing, 2.250 Inch Bore, 1/2 x 1/8 Inch Key, Ductile Iron
€69.65 /unit







