About this Item
- Made from stress-proof hardened steel
- Includes collars, steel worm, & worm shaft
- Fits all BH-USA blocks
- Match steel worm to bronze worm gear
Steel Worm Assembly
The Steel Worm Assembly includes drive shaft collar, steel worm, and worm shaft. Factory-installed. Fits all BH-USA blocks. Match the steel worms to a bronze worm gear. Made from stress-proof hardened steel. Does not include the key stock for the drive pulley.
Do not attempt to use bronze on bronze components.