50mm Office Chair Caster All PA constructions with steel axle and fastening Type:Twin wheel Caster Load Capacity:50kgs Wheel Diameter:50mm Housing/Fork: Caster with Brake Fitting:Friction Stem(10X22mm) Offer smooth,silent,dependable performance on carpet or hard floors Meet BIFMA Standard Rotation under pressure,brake without pressure. Fit for all types of office furniture specifically office chairsSimilar product Product Description 1) Diameter 30-50mm Casters also can be fitted with variously diameter as per Customers' requirement 2) Type: swivel, rigid, swivel with brake,fixed,threaded stem, bolt hole,ect. 3)Castersalso can be fitted with variously type as per Customers 'requirement 4)Load Capacity: 25-50 lbs.Features: 5)Casters also can be fitted with variously Load capacity 6) Quality: Quiet, smooth operation, good strength, and flexible turning ,durable in use High quality, as BIFMA,ISO9001iso900 quality ect. 7)Variously sized Castors can also be made in different colours. 8)OEM are welcome Technical parameters