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

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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.)
Block Size (in.)	Fitting	Outside Diameter	Rim Thickness	Center Pin Dia.	Synthetic Rope Size (in.)	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.		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

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Model

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