Select the bearing rotation speed according to the rotation speed requirements.

Requirements for selecting heavy-duty bearing seats based on rotational speed:

Ball bearings have higher rotational speed and accuracy than roller bearings, so high speed should be preferred for ball bearings.

When the inner diameters are the same, the smaller the diameter, the smaller the rolling body, and the smaller the centrifugal inertia force of the rolling body on the outer raceway, making it suitable for working at higher speeds. Therefore, at high speeds, series bearings with diameters smaller than continuous diameters should be selected. If the bearings do not meet the requirements, the same bearings can be installed, or width series bearings can be considered.

The data and structure of the holder have a significant impact on the rotational speed of the bearing. The physical holder is allowed to be higher than the stamping holder, and the brass holder is allowed to be high speed.

Generally, deep groove ball bearings, angular contact bearings, and cylindrical roller bearings are used in high-speed office areas, while conical roller bearings are used in low-speed office areas. The rotational speed of conical roller bearings is generally 65% of that of concave groove roller bearings, 70% of that of cylindrical roller bearings, and 60% of that of angular contact roller bearings. Low speed thrust ball bearings can only be used at low speeds.

The service life of heavy duty bearing pedestals is as follows due to the following reasons:

Load specifications and service life of heavy-duty bearing pedestals.

The load specification of a bearing has a significant impact on the service life of the bearing. When selecting a bearing, check the basic load rating of the selected bearing. The actual load exceeds the bearing to prevent bearing fatigue and damage. Otherwise, the bearing will not be durable and will be replaced frequently. Here is a trick: halve the load on ball bearings, extend their service life by 8 times, and extend the service life of roller bearings by 10 times.

Stroke clearance for non-standard heavy duty bearing housings.

Due to the heating inside and around the bearing, the temperature of the inner ring is higher than that of the outer ring, and the internal clearance of the roller bearing during operation generally decreases. At this point, attention should be paid to the clearance and bearing life. Due to the difficulty in understanding the temperature difference during operation, swimming gaps are generally used for safety reasons.

Inclined service life of heavy bearing seat.

The inclination here refers to the inclination of the shaft caused by the uneven adjustment or non adjustment of the flatness on both sides of the shaft during installation. Uneven bearing force on the shaft results in reduced bearing life. The greater the slope, the lower the service life. Except for self-aligning bearings, there are certainly no such problems.

Purity and life of heavy duty bearing housing data.

Bearing failures are mainly limited by hardness, strength, toughness, wear resistance, corrosion resistance, and internal stress status. Martensite in quenched steel, austenite in quenched steel, insoluble cementite in quenched steel, and residual stress after quenching and tempering are important factors that affect these properties and conditions The impurity content of the steel. Internal starting points are usually separated in a smooth environment. As a result, customers cannot control the purity of data, which has a significant impact on service life.