Lebus L-170 Series General Purpose Snatch Block - 5 Ton - 4-1/8 in Sheave - Roller Bearing

Description du produit

 The Lebus L-170 Series General Purpose Snatch Block is a roller 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 across a range from 3/8 inch to a maximum of 1-1/4 inch diameter, identified by part number 599837. 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 general purpose designation and the extended cable range of 3/8 inch to 1-1/4 inch maximum diameter provide broad rope diameter compatibility across manila rope and wire rope applications, accommodating the larger diameter manila rope commonly used in marine, agricultural, theatrical, and traditional rigging applications where rope diameters up to 1-1/4 inch are standard. This block shares the same 5 ton working load rating, 4-1/8 inch sheave outside diameter, rope diameter range, and roller bearing construction as part number 599819, with part number 599837 representing a distinct Lebus catalog entry — likely differentiated by hook style, swivel configuration, or attachment hardware — within the same L-170 general purpose roller bearing specification.

The roller bearing sheave mounting provides significantly lower friction than a plain bearing or bushing-mounted sheave, reducing the load on the pulling device and improving mechanical efficiency in purchase systems — particularly beneficial in applications where the block is used frequently or where minimizing the load on the pulling device is a priority. The dual manila and wire rope compatibility of the L-170 Series makes this block suitable for applications where natural fiber rope is used alongside or in place of wire rope, and the roller bearing construction makes it the preferred choice over the bronze bushing variant in higher-cycle or efficiency-sensitive applications within the L-170 general purpose range.

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 bearing 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 bearing failure 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 roller bearing sheave Working Load: 5 ton Compatible Rope: Manila rope and wire rope cable, 3/8 in to 1-1/4 in maximum diameter Sheave Outside Diameter: 4-1/8 in Bearing Type: Roller bearing Part Number: 599837

Compatible With: Manila rope and wire rope cable diameters 3/8 in to 1-1/4 in maximum Winching, rigging, pulling, and load positioning applications Marine, agricultural, theatrical, and traditional rigging applications using larger diameter manila rope Applications where roller bearing efficiency is preferred over bronze bushing Series: L-170

Uses: Redirecting rope pull direction in winching and rigging operations using manila or wire rope up to 1-1/4 in diameter Creating mechanical advantage in rope purchase systems across a wide rope diameter range Extending effective winch or pulling reach in recovery, marine, and general rigging applications General purpose rigging applications requiring 5 ton rated snatch block capacity with roller bearing efficiency and broad rope diameter compatibility

Key Features: Lebus L-170 Series general purpose snatch block Part number 599837 5 ton working load rating Compatible with manila rope and wire rope cable, 3/8 in to 1-1/4 in maximum diameter 4-1/8 in sheave outside diameter Roller bearing sheave for lower friction and improved efficiency Openable side plate for easy rope insertion without threading rope end Dual manila and wire rope compatibility for versatile general purpose rigging applications

Note: Always inspect snatch blocks and rope before each use and remove from service immediately if any damage, deformation, bearing failure, sheave wear, or rope deterioration is identified. Never exceed the rated working load of 5 ton. Always use with rope within the rated maximum diameter of 1-1/4 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. 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.