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Common problems and solutions in KOYO bearing application
Source: Bearing network time: 2013-01-11
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Reasons for the metal surface of the raceway to fall off:
1. The KOYO bearing rolling body and the inner and outer ring raceways all receive the effect of periodic pulsating load; then the contact stress changes during the attack cycle.
When the number of stress cycles reaches a certain value; the fatigue is lost on the rolling body or the inner and outer ring raceway surfaces. 2. The load of the KOYO bearing is too large; this fatigue will be aggravated. 3. KOYO bearing equipment is not correct, Axis zigzag; will also occur the appearance of the raceway shedding. 4. The fatigue of the KOYO bearing raceway will reduce the accuracy of the shaft; the tissue oscillation and noise.
Solution:
1. The correct equipment KOYO bearing 2, the down bearing load 3, the timing to remove the bearing parts; the use of clean and smooth grease 4, replace the KOYO bearing KOYO bearing burn investigation KOYO bearing raceway, rollover can be tempered color; Can KOYO bearings burn?
Reasons for the incursion 1, lack of smoothness 2, smooth oil quality does not meet the demand or transformation 3, KOYO bearing equipment is too tight solution:
Replace the KOYO bearing plastic deformation investigation KOYO bearing's raceway and roller touch surface presents uneven pit; can understand the bearing plastic deformation.
Reasons for the acquisition 1. KOYO bearings under the effect of large static load or impact load; the partial stress of the external work exceeds the compliance limit of the data; this condition usually occurs on KOYO bearings with low speed rotation.
Solution 1, replace the KOYO bearing KOYO bearing seat crack attack cause 1, may be KOYO bearing cooperation too tight 2, KOYO bearing foreign or inner ring loose 3, KOYO bearing housing deformation 4, equipment KOYO bearing appearance processing, etc. .
The cause of the cracking of the cage, the lack of smoothness, the collapse of the rolling body, the inclination of the seat, etc.
The metal of the cage adheres to the tumbling body. The tumbling body is stuck in the cage or is lacking in smoothness.
The raceway of the raceway is severely worn. 1. The foreign body falls into the seat ring. 2. The lack of smooth oil 3. The smooth oil trademark is not suitable.
Metal tone too strong, abnormal load: select appropriate equipment clearance and pre-tightening force 2, poor assembly: processing accuracy of progressive shaft; improved equipment method 3, lack of smoothing agent: make up or use suitable smoothing agent sound 1, foreign matter Lead to channel corrosion, indentation, scars: remove related parts; use clean and smooth grease 2, channel shedding: fatigue wear; replace KOYO bearing irregular noise, foreign body intrusion: remove related parts; use clean and smooth fat 2, swim The gap is too large: focus on cooperation and select suitable clearance 3, steel ball scars: steel ball fatigue loss or foreign body card injury;
Replace KOYO bearing abnormal temperature rise 1, excessive smoothing agent: reduce smoothing agent 2, lack of smoothing agent; or not suitable: add smoothing agent or choose suitable smoothing agent 3, cooperating surface creep or sealing equipment is too large: KOYO bearing outer diameter Or the inner diameter cooperation surface is corrected; the sealing method is changed to change the reverse oscillation of the shaft. 1. Shedding: fatigue and shedding; replacement of KOYO bearing 2. Poor assembly: processing accuracy of progressive shaft; improvement of equipment method 3. invasion of foreign matter: removal of related parts; Clean and smooth grease smoothing agent leaks large discoloration 1, excessive smoothing agent: cut smoothing agent 2, foreign body aggression: remove related parts
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