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Crosby 'N411B', 'N412B' & 'N413B' Loose Swivel Pulley Sheave Hooks, Optional No. of Sheaves (1-3), WLL Range from 900kg to 3630kg

Crosby 'N411B', 'N412B' & 'N413B' Loose Swivel Pulley Sheave Hooks, Optional No. of Sheaves (1-3), WLL Range from 900kg to 3630kg

Western Blocks For Synthetic Fiber Rope with Loose Swivel Hooks.

Model:

Western N-41*-B / LSH-2542

These blocks are built to carry the increased loads of synthetic fiber ropes.
All hooks are heat-treated alloy steel.
You can now use a smaller size rope, and in turn, a smaller block, providing capacities which were previously not possible.
Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements. Importantly, these blocks meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
N-411B Single Sheave.
N-412B Double Sheave.
N-413B Triple Sheave.

Specifications

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. Fitting Type: S- Round Pin Anchor; N- Swivel Hook Latch

Imperial Specifications

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

*Ultimate Load is 4 times the Working Load Limit

Metric Specifications

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

(approx. 0.1Mb)

Model

Part N°	Block Size (in.)	Fitting	Unit Price
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
Add to Quote Basket × More information about shopping on LiftingSafety Quotation Help Please choose the correct configuration of your desired product, then once complete - press on the 'Request Quote' button, this item will then be added to your basket (). To view your basket, simply click on the basket icon at the top of the page OK ?

These blocks are built to carry the increased loads of synthetic fiber ropes.
All hooks are heat-treated alloy steel.
You can now use a smaller size rope, and in turn, a smaller block, providing capacities which were previously not possible.
Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements. Importantly, these blocks meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
N-411B Single Sheave.
N-412B Double Sheave.
N-413B Triple Sheave.

Specifications

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. Fitting Type: S- Round Pin Anchor; N- Swivel Hook Latch

Imperial Specifications

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

*Ultimate Load is 4 times the Working Load Limit

Metric Specifications

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.

Product Warnings

(approx. 0.5Mb)

Crosby catalogue page 355

(approx. 0.1Mb)

Model

Part N°	Block Size (in.)	Fitting	Unit Price
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
Add to Quote Basket × More information about shopping on LiftingSafety Quotation Help Please choose the correct configuration of your desired product, then once complete - press on the 'Request Quote' button, this item will then be added to your basket (). To view your basket, simply click on the basket icon at the top of the page OK ?

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Crosby 'N411B', 'N412B' & 'N413B' Loose Swivel Pulley Sheave Hooks, Optional No. of Sheaves (1-3), WLL Range from 900kg to 3630kg

Western Blocks For Synthetic Fiber Rope with Loose Swivel Hooks.

Specifications

Imperial Specifications

Metric Specifications

Product Warnings

Crosby catalogue page 355

More information about shopping on LiftingSafety

Quotation Help

Specifications

Imperial Specifications

Metric Specifications

Product Warnings

Crosby catalogue page 355

More information about shopping on LiftingSafety

Quotation Help

Products of Possible Interest

Contact Us About This Product

Share this page!