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Crosby "N411B" Loose Swivel Pulley Sheave Hooks. Options at 1, 2 or 3 sheave - Range from 900kg to 3630kg
Model: Western N-411-B / LSH-2542
Western Blocks For Synthetic Fiber Rope with Loose Swivel Hooks.
- These blocks are built to carry the increased loads of synthetic fiber ropes.
- All hooks are heat-treated alloy steel. Y
- ou can now use a smaller size rope, and in turn, a smaller block, providing capacities which were previously not possible.
Imperial Table
| Block Size (in.) |
Fitting | 411 B* Stock No. | 412 B* Stock No. | 413 B* Stock No. |
| 4 | S | 755105 | 755301 | 755506 |
| 6 | S | 755123 | 755329 | 755524 |
| 4 | N | 757103 | 757309 | 757504 |
| 6 | N | 757121 | 757327 | 757522 |
*Bearing code: B - Self Lubricating Bronze Bushed, R - Roller Bearing
Metric Table
| Block Size (in.) | Fitting | 411 B* Stock No. | 412 B* Stock No. | 413 B* Stock No. |
| 4 | S | 755105 | 755301 | 755506 |
| 6 | S | 755123 | 755329 | 755524 |
| 4 | N | 757103 | 757309 | 757504 |
| 6 | N | 757121 | 757327 | 757522 |
Imperial Table
| Block Size (in.) |
Fitting | Sheave Size (in.) |
Synthetic Rope Size (in.) |
Working Load Limit (lbs.)* |
Weight Each (lbs.) |
||||||
| Outside Diameter | Rim Thickness |
Center Pin Dia. | Single | Double | Triple | Single | Double | Triple | |||
| 4 | S | 2.25 | .62 | .38 | 1/2 | 2000 | 3000 | 3000 | 3.00 | 4.00 | 6.00 |
| 6 | S | 3.50 | 1.00 | .50 | 3/4 | 3000 | 7000 | 8000 | 6.25 | 10.00 | 14.00 |
| 4 | N | 2.25 | .62 | .38 | 1/2 | 2000 | 3000 | 3000 | 3.00 | 4.00 | 6.00 |
| 6 | N | 3.50 | 1.00 | .50 | 3/4 | 3000 | 4000 | 6000 | 6.25 | 10.00 | 14.00 |
Metric Table
| Block Size (in.) | Fitting | Sheave Size (mm) | Synthetic Rope Size (mm) | Working Load Limit (t)* | Weight Each (kg.) | |||||||
| Outside Diameter | Rim Thickness | Center Pin Dia. | ||||||||||
| Single | Double | Triple | Single | Double | Triple | |||||||
| 4 | S | 57.2 | 15.8 | 9.65 | 13 | .90 | 1.36 | 1.36 | 1.36 | 1.81 | 2.72 | |
| 6 | S | 89.0 | 25.4 | 12.7 | 19 | 1.36 | 3.18 | 3.63 | 2.83 | 4.54 | 6.35 | |
| 4 | N | 57.2 | 15.8 | 9.65 | 13 | .91 | 1.36 | 1.36 | 1.36 | 1.81 | 2.72 | |
| 6 | N | 89.0 | 25.4 | 12.7 | 19 | 1.36 | 1.81 | 2.72 | 2.83 | 4.54 | 6.35 | |
*Ultimate Load is 4 times the Working Load Limit.
NOTE: Pricing and specifications may be subject to change without notice. Prices shown may be UK only prices and therefore export pricing may vary dependant on location.
Images are for display purposes only.
Images are for display purposes only.
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