Service Caster Brand 8 Inch Swivel Pneumatic Casters Set of 4 - Black Rubber Wheels - Includes 2 Swivel with Brakes - Heavy Duty - 1,200 lbs. Total Capacity - SCC-100S280-PNB-2-TLB-2

• UPC   670533851143
• The Series 100 pneumatic casters come in 6” (mounting height 7.5”), 8” (mounting height 10”), 8” gray, 10” (mounting height 12.1875”) and 12” (mounting height 13.75”) and are made of pneumatic tread and an inner core filled with pressurized air which remains inflated even with the weight of a vehicle resting on it. Weight capacity ranges from 200 lbs on the 6” caster, 300 lbs on the 8”, 350 lbs on the 10” and 450 lbs. on the 12”. Top plate measures at 4" x 4 1/2" with a bolt hole pattern of 2.625" x 3.625" to 3" x 3" and can either be bolted or welded on. Brake options include top lock brake (TLB), side lock brake (SLB), bolt-on swivel lock (BSL), or combinations of each. The TLB (6, 8, and 10” casters) places a positive locking force against the wheel top, whereas the SLB (12” caster) places the force against the wheel side. The bolt-on swivel lock (BSL) is field installable and converts a swivel caster to rigid for straight-line tracking at any 90 degree angle via a spring-loaded bolt inserted into one of 4 notches found on the swivel raceway. Find other wheel materials, sizes and all Service Caster products at our Amazon Storefront. Click on the “by Service Caster” link above the main title on any Service Caster page listing., Manufacturer: Service Caster