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Crosby "P303B" Steel Shell Manila Rope Pulley Block. Options with 1, 2 or 3 sheave - Range from 500kg to 3180kg
Model: Western P-303-B / SSMB-2540
Western Steel Shell Blocks for Manila Blocks.
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| P303B Triple Sheave Pulley Block | P303B Double Sheave Pulley Block | P303B Single Sheave Pulley Block |
Manilla block with Laser cut side plates. Uses grade 5 bolts secured with lock washers and staked nuts. Bronze bushed sheaves with larger bearing diameter ensure an extended block life. New style hanger for fitting attachment.
Imperial Table
| Block Size (in.) |
Fitting | Single Sheave | Double Sheave | Triple Sheave |
| 301 B* Stock No. |
302 B* Stock No. |
303 B* Stock No. |
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| 4 | HS (Latch Hook) |
680971 | 681373 | 681774 |
| 6 | HS (Latch Hook) | 680999 | 681391 | 681792 |
| 8 | HS (Latch Hook) | 681015 | 681417 | 681818 |
| 4 | N (Swivel Hook Latch) |
682639 | 683031 | 683433 |
| 6 | N (Swivel Hook Latch) | 682675 | 683077 | 683479 |
| 8 | N (Swivel Hook Latch) | 682719 | 683111 | 683512 |
| 4 | P (Screw Pin Anchor) |
691031 | 692637 | 694234 |
| 6 | P (Screw Pin Anchor) | 691077 | 692673 | 694270 |
| 8 | P (Screw Pin Anchor) | 691111 | 692717 | 694314 |
Metric Table
| Block Size (in.) | Fitting | Single Sheave 301 B* Stock No. | Double Sheave 302 B* Stock No. | Triple Sheave 303 B* Stock No. |
| 4 | HS (Latch Hook) | 680971 | 681373 | 681774 |
| 6 | HS (Latch Hook) | 680999 | 681391 | 681792 |
| 8 | HS (Latch Hook) | 681015 | 681417 | 681818 |
| 4 | N (Swivel Hook Latch) | 682639 | 683031 | 683433 |
| 6 | N (Swivel Hook Latch) | 682675 | 683077 | 683479 |
| 8 | N (Swivel Hook Latch) | 682 719 - | 683111 | - |
| 6 | P (Screw Pin Anchor) | 691 077 - | 692673 | 694270 |
| 8 | P (Screw Pin Anchor) | 691111 | 692717 | 694314 |
Imperial Table
| Block Size (in.) |
Sheave Size (in.) |
Manila Rope Size (in.) |
Working Load Limit (lbs.)* |
Weight Each (lbs.) |
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| Outside Diam. |
Rim Thickness |
Single | Double | Triple | Single | Double | Triple | ||
| 4 | 2.25 | .63 | 1/2 | 1100 | 1600 | 2200 | 2.25 | 3.75 | 5.00 |
| 6 | 3.50 | 1.00 | 3/4 | 2000 | 3300 | 4000 | 5.50 | 9.25 | 12.50 |
| 8 | 4.75 | 1.13 | 1 | 3300 | 5100 | 7000 | 10.00 | 16.50 | 22.00 |
Metric Table
| Block Size (in.) | Sheave Size (mm) | Manila Rope Size (mm) | Working Load Limit (t)* | Weight Each (kg.) | ||||||
| Outside Diam. | Rim Thickness | |||||||||
| Single | Double | Triple | Single | Double | Triple | |||||
| 4 | 57.2 | 16.0 | 13 | .50 | .73 | 1.00 | 1.02 | 1.70 | 2.27 | |
| 6 | 89.0 | 25.4 | 19 | .91 | 1.50 | 1.81 | 2.49 | 4.20 | 5.67 | |
| 8 | 121 | 28.7 | 26 | 1.50 | 2.31 | 3.18 | 4.54 | 7.48 | 9.98 | |
*Ultimate Load is 3.5 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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