The selection of suitable specifications, dimensions, accuracy, and configuration methods for tapered roller bearings by users based on their usage location, usage conditions, load size, and environmental conditions is a prerequisite for ensuring bearing life and reliability.

Usage: Conical roller bearings are suitable for bearing radial and axial combined loads, mainly radial loads. Usually used in pairs with two sets of tapered roller bearings. Mainly used in the transmission parts of automobiles such as front and rear wheel hubs, active bevel gears, differentials, and reducers.

Permissible speed: When selecting, it is important to note that in a correctly installed and well lubricated environment, the operating speed of the bearing should not exceed 30% to 50% of the bearing's maximum speed. Generally, a parameter value of 20% of the maximum speed is most suitable as the normal operating speed of the bearing.

Permissible installation inclination angle: Generally, tapered roller bearings do not allow the axis line to tilt with the seat hole, and the maximum cannot exceed 2 '. Otherwise, it will cause uneven force on the contact surface between the rolling element and the raceway during operation, affecting the bearing life.

Permissible temperature: Under normal working load conditions, lubricants with high temperature resistance and sufficient lubrication are selected. Generally, bearings are allowed to operate in ambient temperatures ranging from -30 ° C to+150 ° C.

Working clearance: The working clearance of a bearing has a significant impact on the friction temperature rise, operating accuracy, and mechanism rigidity of the bearing. Adjusting to a suitable working clearance has an important impact on the service life of tapered roller bearings. During the installation process, it is necessary to measure the internal clearance of the bearing at any time to ensure that the bearing obtains the most suitable working clearance or preload

Appropriate bearing lubrication

Premature failure of tapered roller bearings is caused by improper lubrication, accounting for more than one-third of the failure causes of tapered roller bearings. Adequate lubricating grease can form an oil film between the rolling element and the contact surface of the raceway during the operation of the bearing, reducing the frictional temperature rise and wear of the contact surface. Choosing appropriate bearing grease is the foundation for ensuring stable operation and maximum reliability of bearings. Universal lubricating grease cannot meet the needs of various special bearing application conditions. The correct lubrication is to select matching lubricating grease to lubricate the bearings according to the requirements of various working conditions.

The correct selection of lubricants includes the type and size of tapered roller bearings, determination of internal space, temperature, speed, load, expected service life, and re lubrication cycle.

Appropriate lubrication has a significant impact on the fatigue life, friction, wear, temperature rise, vibration, etc. of rolling bearings. Without normal lubrication, bearings cannot work stably. Therefore, good lubrication of tapered roller bearings is an effective measure to reduce bearing friction and wear. In addition, the lubrication of bearings also has various functions such as heat dissipation, rust prevention, sealing, and impact mitigation. The role of bearing lubrication can be briefly explained as follows:

A: A layer of oil film is formed between the rolling elements in contact with each other and the surface of the raceway to separate the contact surface, reducing the frictional temperature rise and wear of the contact surface.

B: When using oil lubrication, especially when using circulating oil lubrication, oil mist lubrication, and oil spray lubrication, the lubricating oil can take away most of the friction heat inside the bearing, playing an effective role in heat dissipation.

C: When using grease lubrication, it can prevent external dust and other foreign objects from entering the interior of the tapered roller bearing and play a sealing role.

D: Lubricants have the function of preventing metal corrosion.

E: Lubricating grease containing special additives can repair and passivate minor wear on the raceway and rolling element surfaces during bearing operation, and has a significant effect on prolonging the fatigue life of tapered roller bearings.