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INA Bearing metallurgical quality of the materials used to be the main factors for early failure of one-way thrust ball bearings. Metallurgical technology (such as advances in bearing steel vacuum degassing, etc.), raw material quality is improved. The proportion of raw material quality factors in the analysis of bearing failure has decreased significantly, but it is still one of the main factors bearing failure. The selection of the adequacy of the still bearing failure analysis must take into consideration.

INA Bearing manufacturing generally have to go through a multi-channel processing such as forging, heat treatment, turning, grinding and assembly. The rationality of the process, advanced, stability will also affect the bearing life. Which affect the quality of finished one-way thrust ball bearings heat treatment and grinding process, often have a more direct relationship with the bearing failure. In recent years, the grinding process and the quality of the bearing surface is closely related to the bearing surface deterioration layer.

INA Bearing cracking spalling is due to the bearings in the cycle the load, the contact surfaces are prone to fatigue failure, so in order to improve the service life of the one-way thrust ball bearings, bearing steel must have a high contact fatigue strength.

Hardness is one of the important quality of bearing quality, has a direct impact on the contact fatigue strength, wear resistance, elastic limit. Thin wall bearing steel hardness in the use of state general to achieve HRC61 ~ 65, to make way thrust ball bearings for high contact fatigue strength and wear resistance.

Maintain the aircraft using nylon 46 manufacturing, thereby reducing the sliding friction between the ball and cage. In addition, to eliminate the rotation direction of the concave and convex shape, thereby reducing the mixing loss. In addition, by using the shape of the stress can slow down the assembly to ensure that the assembly performance. Single to keep the shelves loss reduced by 30 to 40 percent torque, torque was reduced by 50 to 65 percent in the overall loss of one-way thrust ball bearings.

INA Bearing parts in the production process to go through a lot of cold, hot working processes, in order to meet high-volume, high efficiency, high-quality requirements, bearing steel and should have good processing properties. For example, cold, hot formability, machinability, hardenability, etc..