Product Description: The Western Hoist S-21B Series Wood Block is a single-groove rigging block designed for manila rope and cable applications up to 5/8 inch in diameter. Built around a 3 inch outside diameter sheave with a bronze bushing bearing, this block provides smooth, dependable rope travel for lifting, pulling, and load-redirection tasks across marine, logging, agricultural, and general industrial applications.
Constructed with a hardwood shell, the S-21B in this configuration offers a working load capacity of 1,200 lb and a 5-inch block length. The single-groove sheave is sized for manila rope and compatible cable up to 5/8 inch, ensuring proper rope seating and reducing wear during sustained use. The bronze bushing bearing delivers consistent performance under load with minimal maintenance requirements.
The S-21B is part of Western Hoist's line of wood shell blocks, well suited for use in tackle systems where traditional rigging hardware is preferred. These blocks are commonly employed in block-and-fall arrangements to multiply mechanical advantage for light-to-medium lifting and hauling operations. The 1,200 lb capacity and 5-inch shell make this configuration a practical choice for lighter-duty rigging tasks in field and shop settings.
Material: Hardwood shell Bronze bushing bearing Manila rope-compatible sheave
Compatible With: Manila rope up to 5/8 in diameter Cable up to 5/8 in maximum diameter
Uses: Lifting and lowering loads Load redirection in rigging systems Tackle and block-and-fall systems Marine, logging, and agricultural rigging General industrial pulling and hauling
Key Features: 1,200 lb working load capacity Single groove sheave 3 in sheave outside diameter 5/8 in maximum rope/cable diameter Bronze bushing bearing for smooth, low-maintenance operation 5 in block length S-21B Series
Note: Confirm working load limit and safety factor requirements with your rigging engineer before use. Always inspect blocks before each use for cracks, wear, or bearing damage.
In Stock
