Ubc bearing uc krrb radial insert ball bearings ubc uc 210 yar 210 gye 50 krrb these uc radial insert ball bearings from ubc are particularly easy to mount they are positioned on the shaft and fixed with grub screws in the inner ring ubc bearing uc 210yar 210gye 50 krrb 50mm radial insert ball bearing 3500