Bearing if in a superior continuous rotation form will announce a low whining sound knocking scars will also occur noise, this noise will follow the thin wall bearing speed of the concave and divergent. If there is intermittent noise, it is transparent. If the announcement of sharp hiss, squeak and other unruly sound, often reveal that the bearing is in a bad situation of continuous rotation.

For heavy load should choose the grease with small needle penetration in addition to small needle penetration when working under high pressure, but also have high oil film strength and extreme pressure performance. When choosing grease according to environmental conditions, calcium-based grease is not easily soluble in water and is suitable for dry and less watery environments. The common greases used in bearings are calcium-based grease, sodium-based grease, calcium-sodium-based grease, lithium-based grease, aluminium-based grease and molybdenum disulphide grease. The number of grease filled in the bearing should be 1/2-1/3 of the internal space of the bearing. High speed should be reduced to 1/3 too much grease will make the temperature rise higher.

Bearing temperature, generally have bearing room outside the temperature can be inferred, if the use of oil holes can be directly measured thin-walled bearing outer ring temperature, it is more bit appropriate. Usually, the bearing temperature starts to rise slowly as the bearing runs and reaches a steady state after 1-2 hours. The normal bearing temperature varies depending on the heat capacity of the machine, the amount of heat dissipated, the speed and the load. If the lubrication and installation are suitable, the bearing temperature will rise sharply and abnormally high temperatures will occur, at which point operation must be stopped and the necessary precautions taken.

Bearing is a precision mechanical support components, bearing users deeply hope that the bearings installed in the host can be in the predetermined period of use without damage and maintain its dynamic performance, but the objective facts are sometimes not as expected, sudden bearing failure accident will cause significant losses to the user. Through a large number of bearing failure analysis research shows that bearing short life or premature loss of accuracy, some is due to material defects or improper manufacturing, but to a considerable extent is not in strict accordance with the bearing use requirements for installation, maintenance, or bearing selection improper or the actual load exceeds the rated load of the thin-walled bearing itself and other reasons caused by bearing abnormal damage.

Bearing cracking spalling is due to the bearing in the role of the cycle load, the contact surface is easy to fatigue damage caused, so in order to improve the service life of the bearing, bearing steel must have a high contact fatigue strength, hardness is one of the important quality of bearing quality, contact fatigue strength, wear resistance, elastic limit have a direct impact. Thin-walled bearing steel in the use of the state of the general hardness to reach HRC61 ~ 65, in order to make the bearing to obtain a high contact fatigue strength and wear resistance.

The cage is made of nylon 46, which reduces the sliding friction between the ball and the cage. In addition, the concave and convex shape in the direction of rotation is eliminated, thereby reducing agitation losses. In addition, assembly performance is ensured by adopting a shape that relieves stress during assembly. The lost torque on individual cages has been reduced by 30 to 40%, and the overall lost torque of the thin-walled bearing has been reduced by 50 to 65%. Bearing parts in the production process, to go through many cold, hot processing procedures, in order to meet the requirements of high volume, high efficiency, high quality, thin-walled bearing steel should have good processing performance. For example, cold, hot forming performance, cutting performance, hardenability, etc.