Bearing-Zhejiang Xuao Intelligent Technology Co., Ltd.

Bearing
Bearings are one of the key components of the roller, and their proper selection directly determines the performance and lifespan of the roller. According to the usage characteristics of the product, the roller will be equipped with different types of bearings. The following is the relevant design information for precision ball bearings commonly used in rollers:

Lubrication:
Grease lubrication:
1. Lubricating grease has low fluidity and is not prone to leakage;
2. Long lubrication duration and relatively long service life;
3. The formed lubricating film has good strength, which is more conducive to the sealing use of bearings;
4. Lower operating noise;
5. The bearing torque is high and its rotational performance is not as good as oil lubrication.
Oil lubrication:
1. The bearing torque is small, and the rotation is very flexible and fast;
2. It has good cooling and cooling effects;
3. The rotational noise is slightly higher than that of grease lubrication.

Sealing:
The sealing of bearings can be divided into two categories: contact type and non-contact type. They are determined based on whether the sealing ring is in contact with the inner ring of the bearing, with typical ones being RS, ZZ, and RZ.

Clearance:
The clearance of the bearing can ensure that the bearing operates flexibly and without obstruction, while its smoothness of operation does not decrease, and there is no obvious settlement of the axis. The suitable clearance group for the roller is C3, which can effectively ensure the dynamic performance (noise, vibration, and friction), rotational accuracy, and service life (wear and fatigue) of the bearing.