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Description
Single Aluminum Block - 51mm Sheave
Single block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist.
Specifications:
- Sheave Dia. 2" (51mm)
- Thickness 15/16" (24mm)
- Width 2 1/8" (54mm)
- Length 4 13/32" (112mm)
- SWL 1750 lbs. (795kg)
- Weight 5oz. (142g)
- Max. Line size 7/16" (11mm)
Accessories
No accessories listed for this product.
Specifications
| SKU | 504-05 |
| UPC | 740507011580 |
| Brand | Schaefer Marine |
| Category | Sailing |
| Country of Origin | UNITED STATES |
| Weight | 0.35 |
| Dimensions | 5 x 3 x 1 |
| Status | Active |
| Last Synced | 10/5/2026, 2:05:40 AM |
Compliance & Shipping
Returnable
Product Literature
No literature or manuals available for this product.
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Frequently Bought Together
Compare Key Features
| Feature |  Schaefer Single Aluminum Block - 51mm Sheave CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Barton Marine Ratchet Block - 55mm |  Harken 16mm Block |  Harken 40mm Carbo Block 90° Fixed Head |
|---|---|---|---|---|---|
| Price | $79.82 | $57.81 | $111.66 | $17.21 | $41.35 |
| Brand | Schaefer Marine | Ronstan | Barton Marine | Harken | Harken |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.35 | 0.19 | 0.3 | 0.1 | 0.11 |
| Dimensions | 5 x 3 x 1 | 4 x 2 x 2 | 6 x 3 x 2 | 3 x 2 x 1 | 5 x 3 x 1 |
| SKU | 504-05 | RF35312 | 90500 | 404 | 2659 |
| Country | UNITED STATES | INDONESIA | — | UNITED STATES | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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$79.82