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Aluminum Extended Block Assembly

1 review
  • Aluminum Blocks
  • Easy to Reach Grease Fittings
  • Factory Assembled
  • Includes worm, shaft, bearings, and collars


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About this Item

  • Aluminum Blocks
  • Easy to Reach Grease Fittings
  • Factory Assembled
  • Includes worm, shaft, bearings, and collars

Aluminum Extended Block Assembly

The Aluminum Extended Block Assembly mounts directly to the gear plate. Used in flat-plate hoists. The assembly is used on BH-USA Deluxe & Advance style flat-plate hoists. Includes worm gear, drive shaft, ball bearings, and collars for mounting. Preassembled and greased for quick replacement on the hoist. Includes aluminum fasteners. Bronze or steel worm options. Fits any BH-USA gear plates and flat plate hoists. Made by BH-USA.


Worm Material Hardened Bronze 660 or 932
THD Single THD
Worm Diameter 1.75
Worm Length 1.985
Worm Bore .754
Shaft Stress Proof Steel
Shaft Length 11.75
Shaft Diameter .746
Shaft Key for Pulley .188 x .0938
Aluminum Housing Dimensions
Product Weight 6 lbs.

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 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.


1 review for Aluminum Extended Block Assembly

Rated 5 Out of 5

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  1. This part will not last two years before it will need replaced. Grease will over heat within several cycles allowing the worm gear will dig into the bronze thrust bearing causing failure. To last any reasonable amount of time would require a roller style thrust bearing.

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