outside toothing wheel side: 21 Guarantee : 2 years Length [mm]: 629 Bore Ø [mm]: 8.6 Thread Size: M20X1.5 Outer gearing wheel side: 21 O-ring diameter (mm) : 52.3 Number of Teeth. ABS ring: 26 Number of Bores: 3 ABS Ring Ø [mm]: 85.2 Wheel-side joint diameter [mm]: 84.3 Tripod Roller Diameter [mm]: 30