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

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

 3.Urethane spiders provide high abrasion resistance an elasticity ,along with good damping charaxteristics and compenssate radial,angular and axial deviations.

 4.Detachable design ,easy installation.

 5.Fastening method of clamping screw.

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