Needle roller/thrust cylindrical roller bearings adopt a combined structure of needle roller bearings with thickened outer rings and two rows of thrust cylindrical roller bearings, which can withstand greater radial/axial loads and have higher radial/axial rigidity. The inner ring, outer ring and cylindrical roller and cage assembly are matched to each other, so that a given axial preload can be applied to the bearing with precision lock nuts. There are two types of bearings with mounting holes in the outer ring and without mounting holes in the outer ring. The bearing with a hole is directly installed on the adjacent structure through the cap bolt, the contact surface is large and the hole spacing is small, so its connection with the adjacent structure is very rigid and the fixing effect is good. parts can also be omitted.
If the axial adjacent space of the shaft ring is insufficient or sealing is required, a bearing with an extended stepped shaft ring can be selected.