Four Bearing Trolley Assembly Set For Garage Hoist System, With Four Wheel Rollers, Fits 1 5 8 In Wide Or Taller Strut Channel, Heavy Duty Hot Rolled Carbon Steel, Galvanized For Rust Resi

Heavy-Duty Four Bearing Trolley Assembly for Garage Hoists
Heavy-duty galvanized trolley set in carbon steel, 4 pieces

This four-bearing trolley assembly set is designed for garage hoist systems and ceiling cart setups. It fits 1-5/8 in wide strut channels or taller and uses hot-rolled carbon steel with galvanization for rust resistance. This four-pack ensures durable, quiet lifting in garages and shops.

Material: hot-rolled carbon steel; finish galvanized for rust resistance
Fits strut channels: 1-5/8 inches wide or taller; compatible with ceiling carts and power lifts
Dimensions: trolley coupling 89x71x6 mm (3.5×2.8×0.2 in); pulley 30×35 mm (ODxW); steel plate hole diameter 14 mm (9/16 in)
Load specs: 150 lbs at 600 rpm; 220 lbs at 300 rpm; 280 lbs at 100 rpm; breaking strength 2200 lbs
Pack: four-piece set

How is a four-bearing trolley assembly used in garage hoist systems and what advantages does it offer?<