Skookum
Skookum SK4M Aluminum Utility Block - 3 Ton WLL
Made in the United States of America!
This product is rated for overhead lifting.
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Product Description
Skookum SK-4M Utili-Sheave Block – 4" Manganese Sheave
The Skookum SK-4M Utili-Sheave Block is a compact, rugged block designed for reliable performance in light to mid-duty rigging applications. Featuring a 4" work-hardening manganese steel sheave with ball bearings, it maximizes both rope and sheave life while providing smooth, low-friction operation. Its full-sided construction and cast aluminum alloy body offer excellent protection for the sheave and rope, all while keeping the block lightweight and easy to handle. Built for 3/8" wire rope with a 3-ton working load limit, the SK-4M is a proven choice for arborists, utilities, and general rigging work. Other attachment variations (swivel hook or swivel shackle) are available by request.
Key Features:
- 4" manganese steel sheave with ball bearings for durability and smooth operation
- Work-hardening sheave maximizes wire rope and sheave life
- Wide throat Utili-Sheave accommodates various lines, links, and terminations
- Recessed sheave design prevents rope from binding against block sides
- Full-sided construction protects the sheave and enhances block strength
- Cast aluminum alloy sides reduce overall weight without sacrificing ruggedness
- Tool-free draw pin for fast reeving and attachment changes
- Meets ASME B30.26-1 requirements
Specifications:
| Model / Part Number | SK-4M / #191114M |
|---|---|
| Sheave Diameter | 4" |
| Wire Rope Size | 3/8" |
| Bearing Type | Ball Bearing |
| Working Load Limit | 3 Tons |
| Weight | 7.5 lbs |
| Height (A) | 9.63" |
| Thickness (B) | 3.25" |
| Width (C) | 4.63" |
| Throat Bottom (D) | 1.31" |
| Inside Throat Width (E) | 2" |
| Inside Yoke Width (F) | 1.13" |
| Throat Height (G) | 4.5" |
| Yoke Bar Height (H) | 0.91" |
| Yoke Bar Width (J) | 0.78" |
Specifications
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Safety Notice
Although Bishop Lifting strives to manufacture and sell the highest quality rigging and safety gear, use of the gear is dangerous if not used correctly by competent trained professionals. Bishop Lifting disclaims any liability resulting from the misuse of its rigging and safety gear. Please take a moment to more thoroughly review our disclaimer.
Bishop Lifting rigging and safety gear is only intended to be used by competent trained professionals. Misuse of the rigging and safety gear can result in serious injury up to and including loss of life. As such, Bishop Lifting disclaims liability for any misuse or incorrect product selection by our customers.
Rigging and safety gear purchased from Bishop Lifting should be used in strict accordance with all industry and OSHA standards. At no time should rigging or safety gear be used beyond its certified load ratings (aka Working Load Limits). Normal wear and tear should be expected with use of rigging and safety gear; therefore, all gear should be thoroughly inspected before each and every use. Worn or unsafe rigging and safety gear should never be used.