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Product Specifications:
| Item | Spacer Hub |
| Hub Diameter | 3 1/4" |
| Keyway Size | 1/2" x 1/4" |
| Material | Steel |
| Maximum Speed | 4500 RPM |
| Outside Dia. | 3 1/4" |
Shipping Info:
| Ship weight (kg) | 1.44 |
| Ship height (cm) | 4.37 |
| Ship length (cm) | 8.26 |
| Ship width (cm) | 8.26 |
| Country of Origin | US |
Product Variants
| Product | Model | Coupling Size | Type | Length Through Bore | Outside Dia. | Keyway Size | Set Screw Size | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
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4H 1 1/8 | 04 | Bored to Size Type SC | 1 21/32" | 2" | 1/4" x 1/8" | 5/16"-18 x 5/16" | Steel | €35.46 | |
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7H 1 1/8 | 07 | Bored to Size Type SC | 1.469" | 2.813" | 1/4" x 1/8" | - | Steel | €94.53 | |
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13H PB | 013 | Reborable Type SC | 3 11/32" | 6 1/8" | - | - | Steel | €426.06 | |
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7H 1 5/8 | 07 | Bored to Size Type SC | 1.469" | 2.813" | 3/8" x 3/16" | - | Steel | €94.53 | |
![]() |
9H 1 1/8 | 09 | Bored to Size Type SC | 1.969" | 3 5/8" | 1/4" x 1/8" | - | Steel | €151.24 | |
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9H 1 7/8 | 09 | Bored to Size Type SC | 1.969" | 3 5/8" | 1/2" x 1/4" | - | Steel | €151.24 | |
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8H 1 1/2 | 08 | Bored to Size Type SC | 1 23/32" | 3 1/4" | 3/8" x 3/16" | 3/8"-16 x 3/8" | Steel | €101.27 |
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MARTIN SPROCKET 8H 1 7/8 Spacer Hub, Bore To Size, 3.250 Inch O.D., 1.875 Inch Bore, 1/2-13 x 1/2 Inch Screw
€118.14 /unit


