Tension Floor Blocks
- Used as the return pulley for the hand line in J-Guide or T-bar manual counterweight sets.
- Minimum 40 lb. weight to properly tension the handline.
- Kick tab permits easy readjustment of the block.
- ASTM Class 30 grey iron sheave.
- Sealed precision ball bearings.
- Steel shoes.
- Special grooves and shoe sizes available, consult factory.
- Also known as "Welch" tension blocks, after the J. R. Clancy employee who developed the block in 1925.