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Prevent spoiled maintenance method too early of KOYO thrust ball bearing

14th December 2013 Bearing Technology 0 Comments

Need the surface of the clean machine first before checking, then dismantled the perimetral part of KOYO bearing. Oil seal fragile part very, take careful dismantlement, make sure not excessive application of force, then checking oil seal and perimetral part carefully, while already demonstrating bad symptom, must change, the bad oil seal will result in importing the damage of the bearing and apparatus had severely and shutting down.

Check lubricant, stained with small lubricant to rub in two when points, if there is pollutant that exists, can feel, or in a lamina of lubricant of final coating of hand back, then light seal is checked.

Change lubricant, in rush down, get rid of old engine oil, pour fresh engine oil into and let machine rotate odd minutes in slow speed and then the intersection of KOYO and bearing that engine oil lubricate. Make engine oil collect residual pollutant, rush down except that these engine oil as much as possible, the engine oil is preferably filtered first before inuse.

First, installation is improper account for 16%

1,Use brute force at the time of installation, beating the bearing directly will injure maximum to KOYO bearing with the hammer; Cause the major cause out of shape.

2,Installation is uncomplete, install the deflection or not put into the location of thrust ball bearing, has caused the backlash of the bearing to be too little. The Internal and external cycle is not at the same center of rotation, cause different hearts.

Propose: Choose the appropriate or specialized bearing installation kit, finish installing and measure with the specialized instrument.

Second, it is bad to lubricate ‘ Account for 50%

According to the investigation, it causes one of the spoiled major causes too early of KOYO bearing to lubricate badly. The major cause includes: Have not annotated the lubricant or lubricating oil in time; The lubricant or lubricating oil has not been annotated in place; Lubricant or lubricating oil lectotype is improper; The lubricating method is incorrect,etc..

Propose: Choose the accurate lubricant or lubricating oil, use the accurate lubrication to annotate the way.

Third, pollute Account for 14%

Pollution will cause the thrust ball bearing to be damaged too early too, pollution means that there are dust and sand, metal fillings,etc. that are entered within KOYO bearing. The major cause includes: Turn on the packaging of bearing too early before using, cause pollution; The work environment is unclean while installing, cause pollution; The work environment of the bearing is unclean, the job medium is polluted etc..

Propose: You had better not disassemble the packaging of KOYO bearing before inuse; Keep installing the cleaning of the environment at the time of installation, wash the bearing to be used; Strengthen the gland of the thrust ball bearing.

Four, fatigue account for 34%

Fatigue failure is a common damaged way of the bearing. The common disruptive reason of fatigue may be: The long-term overload of KOYO bearing runs; Not maintenance in time; It is improper to maintain; The apparatus bearing is exposed to the environment of pollutant or moisture. If when the work is cut off, should once cover the machine with the plastic slice or similar material of oil paper. If wash the one without the bearing sheltered under the circumstance of needn’t be dismantled but may be carried out and is checkedding, want the brush in order to be plated to be stained with the solvent cleaning of petroleum, dry or dry up with one cloth that does not fluff with the compressed air and then ‘ Notice that don’t let the point bearing unit start of thrust rotate .

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