Lebus L-170 Snatch Block - Manila Rope - 3/8 to 1/2 in - 5 Ton

Description du produit

The Lebus L-170 Series Snatch Block is a bronze bushing bearing snatch block designed for use in winching, rigging, pulling, and load positioning applications requiring a rated working load of 5 ton, compatible with manila rope and wire rope cable diameters from 3/8 inch to 1/2 inch, identified by part number 599800. The snatch block is a single-sheave pulley block with an openable side plate that allows the rope to be inserted into the sheave groove without threading the rope end through the block, making it practical for field rigging applications where the rope is already in place or where threading the rope end is not feasible. By redirecting the rope through the snatch block, the operator can change the direction of pull from a winch or pulling device, create a mechanical advantage when the block is used in a purchase system, and extend the effective reach of a winching or pulling operation beyond the direct line between the winch and the load.

The dual manila and wire rope compatibility of the L-170 Series distinguishes this block from the L-160 Series heavy-duty wire rope snatch blocks, making it suitable for applications where natural fiber rope — specifically manila rope — is used alongside or in place of wire rope. Manila rope remains in use in certain marine, theatrical rigging, agricultural, and traditional rigging applications where its handling characteristics, surface friction properties, or historical specification requirements make it the preferred rope type. The sheave groove profile and diameter of the L-170 Series are designed to accommodate both manila rope and wire rope within the 3/8 to 1/2 inch diameter range, providing versatility across rope types without requiring a dedicated block for each application.

The 5 ton working load rating confirms this snatch block is designed for medium-duty rigging, pulling, and load positioning applications within the rated rope size range. The 4-1/8 inch sheave outside diameter is sized for the 3/8 to 1/2 inch rope range, providing the correct rope-to-sheave diameter ratio to minimize rope fatigue and maintain rope service life in repeated use applications. The bronze bushing bearing sheave mounting provides a self-lubricating, corrosion-resistant bearing surface well suited to outdoor, marine, and wet operating environments where roller bearings may be more susceptible to corrosion and contamination, and where the lower friction demands of a 5 ton application make the efficiency trade-off of bushing versus roller bearing less critical than in higher-capacity or higher-cycle applications.

The snatch block must be inspected before each use for cracks or deformation of the block body and side plates, correct operation of the side plate opening and latching mechanism, sheave bushing condition and freedom of rotation, wear or grooving of the sheave groove surface, and correct attachment of the block hook or shackle to the anchor point. Any snatch block showing signs of damage, deformation, or bushing wear must be removed from service immediately. Manila rope used with this block must also be inspected before each use for deterioration, mold, abrasion damage, and loss of strength.

Material: Steel construction with bronze bushing bearing sheave Working Load: 5 ton Compatible Rope: Manila rope and wire rope cable, 3/8 to 1/2 in diameter Sheave Outside Diameter: 4-1/8 in Bearing Type: Bronze bushing Part Number: 599800

Compatible With: Manila rope and wire rope cable diameters 3/8 in to 1/2 in Winching, rigging, pulling, and load positioning applications Marine, agricultural, theatrical, and traditional rigging applications using manila rope Outdoor and wet environments where bronze bushing bearing is preferred Series: L-170

Uses: Redirecting rope pull direction in winching and rigging operations using manila or wire rope Creating mechanical advantage in rope purchase systems Extending effective winch or pulling reach in recovery, marine, and general rigging applications Medium-duty rigging applications requiring 5 ton rated snatch block capacity with manila and wire rope compatibility

Key Features: Lebus L-170 Series snatch block Part number 599800 5 ton working load rating Compatible with manila rope and wire rope cable, 3/8 to 1/2 in diameter 4-1/8 in sheave outside diameter Bronze bushing bearing for corrosion resistance and self-lubrication Openable side plate for easy rope insertion without threading rope end Dual manila and wire rope compatibility for versatile rigging applications

Note: Always inspect snatch blocks and rope before each use and remove from service immediately if any damage, deformation, bushing wear, sheave wear, or rope deterioration is identified. Never exceed the rated working load of 5 ton. Always use with rope within the rated diameter range of 3/8 to 1/2 in. Manila rope has significantly lower working load limits and greater susceptibility to deterioration from moisture and UV exposure than wire rope — verify the working load limit of the specific rope in use before assembling the rigging. The snatch block anchor point must be rated to at least twice the working load of the pulling device when the block is used to redirect a single-part line. Lubricate the bronze bushing bearing at regular intervals per the manufacturer's maintenance schedule. Never use a snatch block as a substitute for a rated lifting block in overhead lifting applications unless the block is specifically rated and certified for overhead lifting use.