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

Allowable speed: When selecting, it is important to note that in an environment with correct installation and good lubrication, 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 limit speed is the most suitable for the normal working speed of the bearing.

Permissible installation inclination angle: Tapered roller bearings generally do not allow an inclination between the shaft centerline and 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 at 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.

Suitable bearing lubrication

The premature failure of tapered roller bearings due to improper lubrication accounts for more than one third of the Failure cause of tapered roller bearings. Adequate lubricating grease can form an oil film between the rolling element and the contact surface of the raceway during bearing operation, reducing friction temperature rise and wear on the contact surface. Choosing appropriate bearing grease is the foundation for ensuring stable operation and maintaining maximum reliability of bearings. Universal lubricating grease cannot meet the needs of various special bearing application conditions. Correct lubrication refers to selecting matching lubricating grease to lubricate bearings according to the requirements of various working conditions.

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

Proper 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 and effectively dissipate heat.

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

D: Lubricants have the effect 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, which has a significant effect on extending the fatigue life of tapered roller bearings.

Longteng bearings are made with German craftsmanship and quality assurance. The production process is transparent and open, adhering to the principle of sustainable development, and providing customers with high load-bearing, high-precision, and high-speed bearing products.