Description
Fixed Combination Floor Blocks
- Used with individual wire guided, J-Guide, or T-Bar sets.
- Economical, fixed floor block for use on sets with limited travel.
- Rope lock (010-533R) and floor block in a single unit.
- 8″ diameter Nylon sheave or ASTM Class 30 grey iron sheave, grooved for 3/4″ rope.
- Sealed precision 17mm ball bearings.
- Incorporates tie off points for guide wires.
Adjustable Combination Floor Blocks
- Used with individual wire guided, J-Guide, or T-Bar sets.
- Rope lock (010-533R) and floor block in a single unit.
- ASTM Class 30 grey iron sheave, grooved for 3/4″ rope.
- Sealed precision ball bearings.
- Incorporates tie off points for guide wires.
- Sheave position may be adjusted to properly tension the hand line.
Sliding Tension Floor Blocks
- Used with manual fire curtains to provide proper tension in the hand line.
- 12″ diameter ASTM Class 30 grey iron sheave with machined groove for 3/4″ or 1″ rope.
- Tapered roller bearings.
- Sheave “floats” on two 3/4″ diameter rods.
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.
Custom Blocks
- Used with wire guide locking rail. Due to their limited travel, wire guided sets can use this economical fixed floor block.
- 8″ diameter Nylon or ASTM Class 30 grey iron sheave, grooved for 3/4″ rope.
- Sealed precision 17mm ball bearings.
- 12 gauge side plates fully enclose sheave.
- Additional spacers are provided for arbor guide wire attachment.
- Floor block clip package includes mounting hardware for attachment to 011-518 locking rails.
