Ubc bearing uc krrb radial insert ball bearings ubc uc 208 yar 208 gye 40 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 208yar 208gye 40 krrb 40mm radial insert ball bearing 3250