8" spring loaded Caster Wheel 772 Lbs Fixed PU - Cast iron core - Top Plate Mount Inner Diameter - 40mm or heavy-duty linear actuators

or heavy-duty linear actuators

6816 Open Deep Groove Ball Bearing

SR144TLKZN SIEMENS Dental handpiece Ball Bearing

this bearing offers lightweight durability

PWKRE90-2RS 90mm Cam Follower Stud Type Track Roller Bearing

8" spring loaded Caster Wheel 772 Lbs Fixed PU - Cast iron core - Top Plate Mount Inner Diameter - 40mm or heavy-duty linear actuators8" Inch Caster Wheel 772 pounds Fixed Polyurethane and Cast iron core Top Plate VXB013200WBCPUF Wheel Diameter= 200mm Wheel Width= 50mm Wheel Diameter= 8" Inch = 200mm Overall Height= 265mm Overall Height Inch= 10. 433" Mounting Type= Top Plate Top Plate Size= 140mm x 108mm Hole distance= 105mm x 75mm Wheel Core= Polyurethane and Cast iron core Tire= Polyurethane and Cast iron core Bearing type= Ball bearing Load Capacity= 772 lb Mounting= Fixed