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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

Model
Part N° Block Size (in.) Fitting Unit Price Quantity In-Stock
2542-T1534
755105
4 S Quote Required Help
2542-T1535
755123
6 S Quote Required Help
2542-T1536
757103
4 N Quote Required Help
2542-T1537
757121
6 N Quote Required Help
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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.

Crosby-catalogue-page-number-342-349.pdf

Product Warnings

(approx. 0.5Mb)
crosby-catalogue-page-355.pdf

Crosby catalogue page 355

(approx. 0.1Mb)

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