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Bearings
High precision, high speed, long life, uniform load distribution, high thrust load.
Structure and Introduction
Solid Color Needle Roller Bearing
The solid color needle roller bearing is compact and has a smaller radial size and larger load capacity. Suitable for parts with limited radial size It is widely applied in situations where shafts and housings are vibrant. The needle roller bearing can only withstand radial loads and does not support axial loads. Can be used in conjunction with other bearings if axial load is applied. However, it does not restrict the axial movement of the shaft or housing. Needle roller bearing limit spin speed is lower. If the main unit has high rotation speed, please choose the needle bearing with retainer as much as possible. Like other types of needle roller bearings, the same radial size has a large load capacity and high rigidity while still having high friction torque.
There are many series of different construction and sizes in this kind of bearing. The hardness, precision and surface roughness of the shaft journal and outer housing of the rolling surface must be the same as the color of the bearing. The G2 class needle rollers have a variance of diameter within 2μm in the group. It has a rigid retainer that allows you to accurately guide parallel shaft lines of the needle roll, except for the whole needle roller bearings.
Features and Classification
RNA Shape NK Needle Roller Bearing No Inner Ring
Needle roller bearings without inner wheels are suitable for parts with limited radial dimensions. Because there is no inner wheel, the axis journal surface acts as a direct rolling surface. Surface hardness is higher than HRC60. , Surface Roughness