Bronze Worm Assembly

$ 86.42
UPC: 091037756138
SKU: 75613



Bronze Worm Assembly

The Bronze Worm Assembly includes a drive shaft collar, steel worm, and worm shaft. Factory-installed. Fits all BH-USA standard and deluxe gear plate assemblies. Match the bronze worms to a cast iron worm gear. Made from stress-proof hardened steel. Fits short blocks on standard flat-plate hoists and extended blocks on deluxe flat-plate hoists.

Does not include the key stock for the drive pulley.


(2) 3/4 in. Drive Shaft Collar
(1) Bronze Single Thread Worm
(1) Gear Plate Assembly Worm Shaft

Do not attempt to use bronze on bronze components.


Worm Type: Bronze
Worm Material: Hardened bronze (660 or 932)
Thread: Single
Thread Direction: Right hand
Worm Diameter: 1 3/4 in.
Worm Length: 2 in.
Worm Bore: .754 in.
Driveshaft Material: Stress proof steel
Driveshaft Length: 11 3/4 in.
Driveshaft Diameter: 746 in.
Grease Fittings: 1
Grease Fitting Size: 1/4 in.
Collar Size: 1 1/4 in. x 1 1/4 in. x 1/2 in.
Collar Amount: 2
Collar Set Screw Size: 5/16 in.

Disclaimer: To enable existing hoist owners to repair or replace machined items, BH-USA makes available machine parts used exclusively in the Boat Hoist USA brand flat-plate hoist.BH-USA brand machined parts should NEVER be used with any other brand flat-plate hoist or machined parts. BH-USA does not warranty any individual machine part or any other re-built/repaired flat-plate hoists. Lift-Tex Inc. does not assume ANY liability for damages to a person or property when machined parts are used in the re-build of a flat plate hoist, regardless of brand. The purchase of, and use of any machine part sold by BH-USA is at the sole risk of the user and is non-returnable, and carries no warranty. BH-USA does not guarantee any individual machined part will fix an existing problem or work as designed. It is the recommendation of BH-USA to purchase a new flat-plate hoist that has been built and tested onsite at BH-USA rather than to attempt to repair an existing hoist.

Product Overview

  • Made from stress-proof hardened steel
  • Includes collars, steel worm, & worm shaft
  • Fits all BH-USA standard & deluxe gear plate assemblies
  • Match bronze worm to cast iron worm gear
  • Fits short blocks on standard flat-plate hoists
  • Fits extended blocks on deluxe flat plate hoists