... time Manufacture of most professional self-aligning ball bearing also supply taper roller bearing,spherical roller bearing,cylindrical roller bearing,thrust bearing and angular contact ball bearings1 ... -American, (Din) 100Cr6 -Germany, carbon steel, iron. 4) Shield / Closure: Plain (Open), Z, ZZ, RS, 2RS, 2ZR, 2Z. 5) Vibration and ...