What are the common failure modes of thin section angular contact ball bearing?

What are thin section angular contact ball bearing?

Thin section angular contact ball bearing are unique rolling bearings, which have a small cross-section and thin-walled structure, and often adopt lightweight design to achieve the goal of small and lightweight products. The ball is connected to the raceway contact point and the bearing axis at an angle of 15°, 25° or 40°, which allows it to withstand both radial and axial loads. In terms of performance, it has excellent high-speed performance, special design and process make it stable and less friction and heat during high-speed operation, and also has the characteristics of high precision, high rigidity and low friction torque, which can ensure the stable operation of the equipment, reduce energy consumption and improve mechanical efficiency. Based on these characteristics, thin section angular contact ball bearing are widely used in aerospace, precision machine tools, industrial robots, medical devices, optical instruments and many other fields, such as helping aircraft meet strict weight and performance requirements, ensuring the machining accuracy of precision machine tools, and meeting the needs of industrial robot joints for miniaturization and high motion accuracy. In addition, its product specifications and models are abundant, covering a variety of sizes, accuracy levels and contact angles, which can meet the diverse needs of different application scenarios.

Features of thin section angular contact ball bearing

Small cross-sectional size: Compared with standard angular contact ball bearings, the cross-sectional size is designed to be single, which does not increase with the increase of the bore diameter, and can achieve a high load carrying capacity in a limited space.

Light weight: The thin-walled design and small outer diameter steel balls, and the use of hollow shafts ensure light weight, which is conducive to reducing the overall weight of the equipment.

High precision: It can provide good rotation accuracy and meet the needs of equipment with high precision requirements.

Low frictional torque: The use of small outer diameter steel balls and other designs helps to reduce frictional torque, reduce energy loss, and improve equipment efficiency.

High load capacity: Angular contact ball bearings can be matched with an optimal number of balls and have a contact angle of 30° to withstand high radial loads and axial loads originating in the same direction.

Diverse products: There are various dust cover forms, flange forms, stainless steel forms, etc., with complete varieties to meet the special requirements of different working environments and equipment.

The price of thin section angular contact ball bearing

The price of thin section angular contact ball bearing varies depending on a variety of factors, such as brand, model, accuracy class, material, batch size, etc. Generally speaking, the price of thin section angular contact ball bearing with ordinary accuracy grades and small sizes may range from a few yuan to dozens of yuan, such as some models with smaller inner diameter and smaller cross-sectional size, and the unit price may be around 3 - 10 yuan on Alibaba and other platforms. The price of medium-sized and high-precision bearings may be tens to hundreds of yuan, for example, some bearings with an inner diameter of tens of millimeters and an accuracy of P5 may be around 50-200 yuan. The price of thin section angular contact ball bearing with large size, high precision or special materials and special requirements will be higher, such as specific models used in high-speed spindle motors, radars, robots and other fields, such as 71820C, 71852C, etc., the price may reach thousands of yuan.

Applications for thin section angular contact ball bearing

Aerospace field: aircraft aero engines, flight control systems, aviation instruments and other equipment have extremely high requirements for the weight, accuracy and reliability of bearings, and the lightweight and high-precision characteristics of thin section angular contact ball bearing can meet these requirements and help improve aircraft performance.

Military field: such as radar microwave equipment, guidance systems and other military equipment, need to install high-performance bearings in a limited space, thin section angular contact ball bearing can ensure the performance of the equipment, while reducing the volume and weight of the equipment.

Robot field: the joints, arms and other parts of the robot need to use high-precision, lightweight bearings to achieve flexible movement and precise control, thin section angular contact ball bearing can meet the performance requirements of the robot for bearings, improve the motion accuracy and efficiency of the robot.

Medical device field: such as medical imaging equipment, surgical instruments, dental equipment, etc., have strict requirements for the accuracy, noise and stability of bearings, and the high precision and low noise characteristics of thin section angular contact ball bearing can ensure the stable operation and precise operation of medical equipment.

In the field of electronic devices: In electronic devices such as optical imaging instruments, rotary encoders, stepper motors, etc., thin section angular contact ball bearing provide precise rotary positioning and low-friction operation, helping to improve the performance and reliability of electronic devices.

Industrial automation: In the transmission device, precision positioning platform and other equipment of the automated production line, thin section angular contact ball bearing can improve the motion accuracy and stability of the equipment and ensure the efficiency and accuracy of the production process.

What are the common failure modes of thin section angular contact ball bearing?

The common failure modes of thin section angular contact ball bearing are as follows:

Wear: During the long-term operation of the bearing, friction will occur between the rolling elements and the raceway, the cage and the rolling elements or the raceway due to relative movement, resulting in the gradual wear of the surface material, increasing the bearing clearance and decreasing the accuracy, and ultimately affecting the normal operation of the equipment.

Fatigue: Under the action of alternating load, fatigue cracks will occur in the rolling elements and raceways of the bearing, and over time, the cracks will gradually expand, eventually leading to surface spalling, which will cause the vibration and noise of the bearing to increase, and reduce the service life of the bearing.

Corrosion: If there is corrosive media in the environment where the bearing is located, or if the moisture intrusion is caused by poor lubrication, the surface of the bearing will be corroded, destroying the surface quality and accuracy of the bearing, and causing the bearing to fail prematurely.

Overload: When the load on the bearing exceeds its rated load capacity, it will lead to plastic deformation of the rolling elements or raceways, which will cause the running accuracy of the bearing to be lost, the friction force will increase, and it may even lead to the bearing jamming.

Poor lubrication: insufficient lubrication or improper lubricant selection will aggravate the friction between the various components of the bearing, generate a lot of heat, lead to an increase in the temperature of the bearing, and then affect the performance and life of the bearing, and may also cause failure forms such as bearing burns and gluing.

Improper installation: During the installation process, if the bearing is installed too tightly or too loosely, additional stress will be generated inside the bearing, resulting in unstable operation and accelerating the wear and fatigue of the bearing. In addition, misalignment during mounting can also subject the bearing to uneven loads, which can lead to various failure problems.

Supplier of thin-walled bearings

LTZC offers thin-walled angular contact bearings and thin-walled bearings. If you are looking for a supplier of thin-walled angular contact bearings, please contact us for the latest quote.