4 Inch High Temp Phenolic Wheel Swivel Top Plate Caster Set with 2 Brake 2 Rigid

These Service Caster Series #20 High Temperature Phenolic casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height; 6" wheel: 7-1/8" mounting height. Capacity: 300 lbs./caster Top plate measures at 3-1/8" x 4-1/8" with a bolt hole pattern of 1-3/4" x 2-15/16" to 2-3/8" x 3-3/8" and can either be bolted or welded on. Brake options include a top lock brake (TLB) or a total lock brake (TTL). The top lock brake (TLB) places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL) also places a positive locking force against the wheel tread, but the total lock brake (TTL) simultaneously locks the wheel and the swivel for a complete stationary position.