Different standard of judgment based on the mechanical properties and the degree of importance and inspection cycle. Injury, subject to the following one-way thrust ball bearings can not re-use, and must be replaced. In the process of using a bearing, the grease is very critical. If use of the deterioration of the grease, not only to achieve its proper role, away also damage the bearings.

Lubricants will twist between the thumb and index finger repeatedly grinding the lubricants hands feel better lubricity, less wear debris, friction-free, if they feel the sand between the fingers like a larger friction sense indicates that the lubricant impurities within can not be reused, should be replaced with new oil.

Way thrust ball bearing raceway sound control sound when the operation of the one-way bearing, rolling element raceway scroll issued a slippery continuous sound, a unique all Rolling occur the basic sound. The general sound of the bearing raceway sound and other sound. The ball bearing raceway sound is irregular; the frequency of 1000Hz or more, its main frequency does not change with the speed, but the total sound pressure level increases with engine speed to accelerate. Roller Daosheng large bearing raceway sound SPL is reduced with the increase in viscosity; small bearing raceway sound, the level in the viscosity is increased to more than about 20mm2 / s, by reducing transfer is somewhat increased. The greater the rigidity of the bearing raceway sound overall sound pressure level is lower. Such as the radial clearance is too small, the total sound pressure level and the main raceway sound frequency will be increased dramatically with the reduction of the radial clearance. Control raceway sound: the selection of low-noise bearing waviness small bearings, carefully selected conditions of use. The raceways sound often affect the mechanical noise to reduce the raceways sound can reduce the noise of the machinery.

The one-way thrust ball bearings metallurgical quality of the materials used to affect the main factors of premature bearing failure. Followed by metallurgical technologies (such as bearing steel vacuum degassing, etc.) to improve the quality of the raw materials to be improved. The proportion of the raw material quality factors in bearing failure analysis has decreased significantly, but it is still one of the main factors bearing failure. The selection is properly still bearing failure analysis of the factors that must be considered.

The main task of the one-way thrust ball bearing failure analysis is based on a lot of background material, analysis of data, and failure modes to identify the main factors causing bearing failure, so that targeted improvement measures are proposed to extend the service of self-aligning roller bearings period, to avoid bearing the unexpected early failure.

The vibration of the one-way thrust ball bearings bearing failure impact is very significant. Spalling, for example: the indentation, corrosion, cracks, wear and tear and will be reflected in the bearing vibration detected out through the use of special bearing vibration measuring device (frequency analyzer and vibrometer) measuring the size of the vibration frequency distribution inferred values ??measured out the details of the abnormal vibration due to bearing premise or sensor mounting position with different needs prior to analysis and comparison of the measurement value of each machine to determine the judgment scale.

Reasons: the bearing shell lap: replace bearings and wear parts

2 reasons: poor lubrication method: and proper cleaning choice provisions grades of lubricating materials

3 reasons: belt too tight: Adjust the belt so elastic proper

4 reasons: the spindle bending or Holes heart: to repair spindle or box

5 reasons: assembly quality low method: to improve the quality of assembly

6 reasons: low METHODS: bearing accuracy specified accuracy class of bearings

7, the axial force is too large: cleaning, the tone positive seal ring clearance requirements between 0.2 ~ 0.3mm, correct impeller balance hole diameter and verify static equilibrium value

8, bearing damage: replace bearings