| N-411-R SINGLE  | S-412-B DOUBLE  | N-413-B TRIPLE  |
Western Blocks For Synthetic Fiber Rope
| N-411-R SINGLE | S-412-B DOUBLE | N-413-B TRIPLE |
| Block Size (in.) | Fitting | Single Sheave | Double Sheave | Triple Sheave | |||
| 411 R Stock No. Painted | 411 B Stock No. Painted | 412 R Stock No. Painted | 412 B Stock No. Painted | 413 R Stock No. Painted | 413 B Stock No. Painted | ||
| 4 | S | 755007 | 755105 | 755203 | 755301 | 755409 | 755506 |
| 6 | S | 755025 | 755123 | 755203 | 755329 | 755427 | 755524 |
| 4 | N | 757005 | 757103 | 757201 | 757309 | 757407 | 757504 |
| 6 | N | 757023 | 757121 | 757229 | 757327 | 757425 | 757522 |
Bearing Code: R - Roller; B - Self-Lubricating Bronze Bushed
For Reeving Information, Click here.
| Block Size (in.) | Sheave Size (in.) | Synthetic Rope Size (in.) | Working Load Limit
* (lbs.) | Working Load Limit * (lbs.) | Weight Each (lbs.) | ||||||||
| Outside Diam. | Rim Thickness | Center Pin Diam. | Single With Hook | Double With Hook | Triple With Hook | Single With Shackle | Double With Shackle | Triple With Shackle | Single | Double | Triple | ||
| 4 | 2.25 | .62 | .38 | 1/2 | 2000 | 3000 | 3000 | 2000 | 3000 | 3000 | 3.00 | 4.00 | 6.00 |
| 6 | 3.50 | 1.00 | .50 | 3/4 | 3000 | 4000 | 6000 | 4000 | 7000 | 8000 | 6.25 | 10.00 | 14.00 |
* Ultimate Load is 4 times the Working Load Limit.
These blocks are built to carry the increased loads of synthetic fiber ropes. All hooks are heat-treated alloy steel. Center pins are heat-treated. You can now use a smaller size rope, and in turn, a smaller block, providing capacities which were previously not possible.
