Office Chair Caster Wheels 5 Pack Stainless Steel PU Swivel Casters with Smooth Rolling and Floor Protection

Ball Casters for Chairs and Furniture Stainless Steel and PU, Screw Thread Stem, Pack of 5 Key benefits Durable construction: Stainless steel stem and housing resist wear for reliable long term use. Smooth, floor friendly movement: 50 mm polyurethane wheel rolls quietly and protects hard floors and carpets. load capacity: Each caster supports up to 30 kg, suitable for chairs, small furniture, and equipment. Simple installation: Screw thread stem fits common threaded sockets for quick replacement or upgrade. Compact profile: Low overall dimensions allow stable support without adding bulk. Features and specifications Material: Stainless steel and polyurethane Color: Grey, black, silver Load capacity: 30 kg per caster Wheel diameter: 50 mm (1.99 inch) Screw thread size: 9.7 x 14.7 mm (0.38 x 0.58 inch, Dia x H) Size excluding stem: 62.2 x 51.5 x 55.8 mm (2.45 x 2.03 x 2.20 inch, L x W x H) Package contents: 5 x chair casters Package weight: 515 g Function and compatibility Designed for office chairs, sofas, sofa beds, goods shelves, storage racks, and light mechanical equipment. The threaded stem allows compatibility with furniture and equipment that accept a 9.7 mm diameter screw thread and similar socket depths. Polyurethane wheel is suitable for both hard floors and carpeted surfaces. Installation and performance notes Screw the caster stem into the existing threaded socket until secure. Confirm thread fit before tightening. Each caster rated to 30 kg; ensure combined rated capacity meets the total weight of the item and its typical load. Periodic cleaning of the wheel surface prevents debris buildup and maintains smooth rolling. Use scenarios 1. Office chair upgrade: worn casters to restore smooth, quiet movement and reduce floor scuffs in a home or office workspace. 2. Sofa bed mobility: Install on sofa bed legs to make repositioning and cleaning easier while maintaining stable support for seating and sleeping. 3. Storage rack and light equipment: Fit on storage racks or small mechanical units to enable repositioning and easier access during maintenance or reorganization. Reliable, compact, and easy to install, these ball casters provide a practical mobility solution for chairs and light furniture where durability and floor protection are required.