R Series Blocks
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- Multi-use wide throat & utili-sheave for passing a variety of line, connecting links, and terminations.
- Work -hardening manganese steel sheaves maximize wire rope & sheave life.
- Alloy sheave option offers same durability at a lower cost.
- R6, R8, & R4 equipped with tapered roller bearings for long life in higher line speed applications.
- R4 equipped with straight roller bearings to minimize size.
- Recessed sheave prevents wire rope from binding between sheave and block side.
- Full sided block maximizes sheave protection and strength.
- Versatile draw pin allow for rapid reeving & exchange of attaching style.
- Rugged cast alloy steel sides for demanding environments.
- ASME B30.26-1 compliant
Dimensions are in inches unless otherwise noted.
| Sheave Diameter | Wire Rope Min | Wire Rope Max | WLL (TONS) | A | B | C | D | E | G | H | J |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1/4 | 3/8 | 5 | 10 | 1.75 | 4.75 | 1 | 2.5 | 5.25 | 1 | 1 |
| 6 | 3/8 | 1/2 | 8 | 14.5 | 8 | 6.75 | 2.5 | 4.5 | 6.5 | 1.25 | 1.25 |
| 8 | 1/2 | 5/8 | 8 | 17 | 8.5 | 8.75 | 2.5 | 4.75 | 7.25 | 1.38 | 1.38 |
| 10 | 1/2 | 5/8 | 9 | 19.5 | 8 | 10.5 | 3.5 | 4.75 | 7.25 | 1.38 | 1.38 |
| 4 | 1/4 | 3/8 | 5 | 10 | 1.75 | 4.75 | 1 | 2.5 | 5.25 | 1 | 1 |
| 6 | 3/8 | 1/2 | 8 | 14.5 | 8 | 6.75 | 2.5 | 4.5 | 6.5 | 1.25 | 1.25 |
| 8 | 1/2 | 5/8 | 8 | 17 | 8.5 | 8.75 | 2.5 | 4.75 | 7.25 | 1.38 | 1.38 |
| 10 | 1/2 | 5/8 | 9 | 19.5 | 8 | 10.5 | 3.5 | 4.75 | 7.25 | 1.38 | 1.38 |