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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Maintenance and discrimination of bearings Bearing repair and discrimination
When repairing the bearing under disassembly; firstly record the appearance of the bearing; recognize the residual amount of lubricant; after sampling; remove the bearing. The scavenger uses gasoline and fire oil throughout. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Removal of the removed bearing; coarse and fine washing; first place the metal mesh in the container; make the bearing not directly touch the dirt inside the container. When rough washing; if the bearing rotates with dirt; it will damage the bearing tumbling Face; should be paid attention to. In the rough wash oil; use the brush to go out to grease, adhesive; after cleansing; turn into fine wash.
Fine washing; the bearing is rotated while removing the oil; while carefully cleaning. Others; the oil should also be replaced frequently to keep clean.
Inspection and discriminating of the bearing can be used when the bearing can be reused; check after the bearing is removed; carefully check the raceway surface, the rolling surface, the condition of the cooperation surface, the wear condition of the cage, whether the bearing clearance can be added and There is no damage or abnormality that affects the accuracy of the scale. Non-detached small ball bearings, etc.; use a single-handed flat end inner ring; the rotating outer ring recognizes whether it can be smooth.
Tapered roller bearings and other separate bearings; can be viewed from the rolling surface of the roll and outer ring.
Large bearings can not be rotated by hand; pay attention to the appearance of the rolling body, raceway surface, cage, ribs, etc. The higher the importance of the bearing, the more careful it is to view.
Determine whether the bearing can be used again; according to the degree of damage of the bearing, mechanical properties, importance, working conditions, viewing cycle, etc., the correlation is determined. However, if the following defects are found during the inspection; the bearing cannot be used continuously; the replacement of the new bearing is required. .
(a) There is a crack or a gap in the inner ring, the outer ring, the roll body and the cage.
(b) One of the ferrules and the rolling body is cracked.
(c) Significant abrasions on the rolling surface, ribs and roll.
(d) The cage is worn significantly; or the rivet is significantly loose.
(e) There are rust or scars on the raceway surface and the roll body.
(f) There are severe indentations or bumps on the raceway surface and the roll body.
(g) There is significant creep on the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.
(h) Significant discoloration due to overheating.
(i) Bearings sealed with grease; seals or dust caps are severely damaged.
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Bearing repair and discrimination
Source: China Bearing Network Time: 2018-04-26