In universal casters according to varieties: common universal wheels, universal ball wheel, etc. , can also according to the material: pu castor wheels, grey rubber universal wheel, nylon wheels, metal universal wheel, etc, the flexible rotation, safe and reliable. Universal wheel caster USES and characteristics are as follows: 1, universal caster wheel bracket beautiful corrosion resistance after shot peening galvanized processing. 2, universal casters used according to different environment can choose all kinds of casters. 3, industrial universal caster wheel can be used in the factory, workshop, commercial, catering and other industries the use of the environment. 4, also can be used by the size of the environmental capacity choose different castor. 5, castor, which has two kinds of ball bearing and roller bearing. 6, castor braking system. Maintenance methods: 1, the test on the surface of the tire visual degree of wear and tear. Tyre tread mill 'flat spot' may suggest that the accumulation of foreign body, such as thread the wire clutter may be winding wheel, remove the wheel bolts and nuts, clear clutter. Check whether the wheel bearing damaged, if there is no damage to the parts can be reassembled continue to use, if often meet the wheels is sundry winding phenomenon Suggestions can avoid assembly anti-wind cover. 2 wheels, universal casters loose or jammed also can lead to 'smooth'. Proper maintenance check, especially check bolt tightness, lubricating oil, to replace the damaged rolling performance and rotary motion of the caster wheel can enhance flexibility. 3 or lax serious breakage, rubber tire rolling are likely to lead to instability, gas leakage, load is unusual, and floor damage and so on, timely replacement of damaged tires and bearing can reduce downtime due to damage of castor cost brought by the loss. 4, check after repair wheels, determine whether the bolt and nut tightening, as far as possible at all to use the locking bolt washer or locknut. If is loose, tighten the immediately. If the inside of the bracket with the loose wheel will be to the rotation of the wheels was damaged or not.