Arbors & Counterweights

J-Guide/T-Bar Single Purchase Arbors

• Used in J-Guide / T-Bar guided systems to hold counterweight that balances the batten load.
• Arbor tops and bottoms are fabricated 1/4″ steel weldments with a bolt and spacer for hand line termination.
• Arbor tops are punched to accept 8 cables.
• Two 3/4″ steel arbor rods have three nuts at top and bottom.
• Each rod has a retaining collar with a thumbscrew incorporating an easy to grip plastic knob.
• Front collar is welded to top spreader plate for additional security.
• 12 gauge steel spreader plate every two feet (minimum 2). Labels on the back bar show safety information and proper location for spreader plates.
• 3/8″x 3″ steel back bar, with two guide assemblies.
• Standard polypropylene guide shoes allow for on site adjustment for 6″ or 8″ set centers; other shoe types and centers are available.
• Arbors are provided with easy to read, self adhesive set numbers.

J- Guide/T-Bar Double Purchase Arbors

• Used in J-Guide / T-Bar guided systems to hold counterweight that balances the batten load.
• Arbor tops are fabricated from 1/2″ steel, and contain an 8-1/2″ diameter ASTM A48 grey iron sheave with equal pitch diameter rope and cable grooves, tapered roller bearings, and 7 gauge side plates.
• Arbor bottoms contain an 8″ diameter ASTM A48 grey iron sheave grooved for 3/4″ rope, with sealed precision ball bearings and 10 gauge side plates
• Two 3/4″ steel arbor rods have three nuts at top and bottom.
• Each rod has a retaining collar with a thumbscrew incorporating an easy to grip plastic knob.
• Front collar is welded to top spreader plate for additional security.
• 12 gauge steel spreader plate every two feet (minimum 2). Labels on the back bar show safety information and proper location for spreader plates.
• 3/8″x 3″ steel back bar, with two guide assemblies.
• Standard polypropylene guide shoes allow for on site adjustment for 6″ or 8″ set centers; other shoe types and centers are available.
• Arbors are provided with easy to read, self adhesive set numbers.

Wire Guide Arbors

• Used in wire guided systems to hold counterweight that balances the batten load.
• Arbor tops and bottoms are fabricated 1/2″ steel plates with 3/8″ holes for guide wires located on 15″ centers
• Arbor tops have 7 gauge steel plates with holes for lift line terminations and bolt and spacer for the hand line termination. Label on top provides safety information and locations for spreader plates.
• Arbor tops are punched to accept 8 cables.
• Two 3/4″ steel arbor rods have three nuts at top and bottom.
• Each rod has a retaining collar with a thumbscrew incorporating an easy to grip plastic knob.
• 12 gauge steel spreader plate every two feet (minimum 2).

Lattice Track Arbors

• Used in single purchase lattice track guided systems to hold counterweight that balances the batten load.
• Arbor tops and bottoms are fabricated 1/2″ steel plates with brass guides that engage the lattice track.
• Arbor tops have 7 gauge steel plates with holes for lift line terminations and bolt and spacer for the hand line termination. Label on top provides safety information and locations for spreader plates.
• Arbor tops are punched to accept 8 cables.
• Two 3/4″ steel arbor rods have three nuts at top and bottom.
• Each rod has a retaining collar with a thumbscrew incorporating an easy to grip plastic knob.
• 12 gauge steel spreader plate every two feet (minimum 2).
• Lattice track systems are used for individual counterweight sets such as act curtains and fire curtains.
• A dashpot channel (078-DPC) option is available for use with dashpots in fire curtain systems. This channel is factory welded to the top of the arbor to engage the swaged ball on the dashpot line, causing the dashpot to start to slow the curtain descent.

Counterweights

• Used in arbors to counterbalance the weight of the batten and scenery or lights.
• Weights are flame cut steel.
• Opposite corners have 45º notches to provide finger grips.
• 13-3/4″ length, with slotted ends for 3/4″ diameter arbor rods spaced on 10″ centers.
• Sold in 1,000 lb pallets.
• Actual weight can vary by ± 20% from the nominal weight