1.Zero rotation clearance ,applicable to positive and negative rotation.

 2.Resistant to oil ,dirt ,sand ,grease ,moisture,many solvents,as well as the atmospheric effects of ozone.

 3.Urethane spiders provide high obrasion resistance an elesticity ,along with good damping  characteristics,and compensate radial ,angular and axial deviations.

 4.Detachable design ,easy installation .

 5.Tighten positioning screws .

 6.The main part is made of high strength aluminum alloy.