Product introduction

Angular contact ball bearing is a kind of rolling bearing with special structure and performance characteristics.

Structural features

Basic components：Contains outer ring, inner ring, steel ball (rolling element) and cage.

Both the outer ring and the inner ring are equipped with raceways, and the raceway design has a certain inclination angle, which is one of the key characteristics of the angular contact ball bearing. The steel balls roll between the raceways, and the cage is used to separate and guide the movement of the steel balls.

Contact angle：In its name “angular contact” Derived from the contact angle formed between the rolling element and the bearing ring raceway. The size of the contact angle varies according to different bearing models and design requirements. Common contact angles range from 15 ° to 40 °. The existence of contact angles allows bearings to withstand loads in different directions, including radial and axial loads.

Performance advantage

Bearing capacity：

Axial load capacity：Angular contact ball bearings can withstand large axial forces due to their specific contact angles. In some workplaces that need to bear both radial and axial loads, such as machine tool spindles, screws, etc., angular contact ball bearings can provide stable axial support. For example, in machine tool spindle systems, angular contact ball bearings can withstand the axial component force caused by the cutting force generated during processing, ensuring the axial positioning accuracy and stability of the spindle.

Radial bearing capacity：Although its axial bearing capacity is more prominent, it also has good radial bearing capacity and can adapt to various radial load conditions. In some high-speed rotating equipment, such as motors, fans, etc., angular contact ball bearings can withstand radial loads while ensuring the smooth operation of the equipment.

High speed performance：The design structure makes it have a low friction coefficient and good heat dissipation performance when rotating at high speed, which can adapt to the working conditions of high-speed operation. For example, in high-speed motors, angular contact ball bearings can ensure high-speed rotation of the motor rotor, reduce energy loss and heat generation, and improve the efficiency and reliability of the motor. The design of the cage also plays an important role in high-speed performance. Some cages made of lightweight and high-strength materials, such as nylon and aluminum alloy, can reduce the inertial force and frictional resistance of the bearing when rotating at high speed, and further improve the speed limit of the bearing.

Accuracy and stability：High-precision products can be manufactured to meet the needs of various precision equipment. In some high-precision machine tools, instrumentation and other equipment, the accuracy of angular contact ball bearings directly affects the processing accuracy and measurement accuracy of the equipment. The design of its contact angle makes the contact between the rolling element and the raceway more stable when the bearing is under load, reducing the sliding and offset of the rolling element, thereby improving the rotation accuracy and stability of the bearing.

Application field

Machine tool industry：It is widely used in various types of machine tools, such as numerical control of the spindle system of machine tools, screw drive system, etc. In the spindle system, multiple sets of angular contact ball bearings are usually installed in combination to meet the requirements of high speed, high precision and high bearing capacity of the spindle. Through reasonable configuration and preloading, the precise rotation and positioning of the spindle can be realized to ensure the accuracy and surface quality of the machined workpiece.

Automotive field：It is used in key parts such as the engine, transmission and steering system of the automobile. For example, on the crankshaft and camshaft of the automobile engine, the angular contact ball bearing can bear various loads generated when the engine is running, ensuring the normal operation of the engine. In the transmission, the angular contact ball bearing is used to support the rotation of the gear shaft and bear the axial and radial forces generated by the gear transmission.

Aerospace：Due to the high reliability and performance requirements of aerospace equipment, angular contact ball bearings play an important role in key parts such as aircraft engines, landing gear, and flight control systems. In aircraft engines, angular contact ball bearings need to work in harsh environments with high temperatures, high speeds, and high loads, so there are strict requirements for bearing materials, manufacturing processes, and designs.