/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>IKO thrust ball bearing after the operation of the heat problem analysis Analysis of the heat problem after IKO thrust ball bearing operation
After the IKO thrust ball bearing equipment is completed; in order to check whether the equipment is correct; to check the operation. The small machine can be rotated by hand; to admit that it can rotate smoothly. Check the project for poor work due to foreign objects, scratches and indentations. Due to poor equipment; the torque generated by the equipment seat is not stable; the torque is too large due to too small clearance, equipment errors, seal conflicts, etc. If there is no abnormality, the power can be started. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Large machinery can't be rotated manually; therefore, the power is blocked immediately after the no-load start; the machine is idling; check whether there is oscillation, noise, whether the rotating parts can touch, etc.; after acknowledging that there is no abnormality; enter the power operation.
Power operation; starting from no-load low-speed; slowly progressing to additional conditions for the specified conditions. Check items during the test operation; whether there are abnormal sounds, changes in bearing temperature, leakage or discoloration of smoothing agents, etc. Should be intermittent operation; view the machinery; if necessary, remove the bearing to view.
IKO thrust ball bearing temperature; generally can be estimated according to the external temperature of the bearing seat. But the oil hole directly measures the temperature of the bearing outer ring more accurately. Bearing temperature; gradually increase from the beginning of the operation; generally 1~2 hours after the temperature is stable. If the bearing equipment is bad; the temperature will rise sharply; the abnormal high temperature will be presented. The reasons are such as excessive smoothing agent, too small bearing clearance, poor equipment, excessive conflict of sealing equipment, etc. High-speed rotation; selection of bearing layout and smoothing method Faults are also the reason.
The transition sound of IKO thrust ball bearing is viewed with a stethoscope, etc.; there are strong metal noise, abnormal sounds, irregular sounds, etc. to clarify the abnormality. The reason is poor smoothness, poor accuracy of shaft or bearing housing, bearing damage, foreign matter intrusion, etc.
When viewing the bearing, do not expose the bearing to contaminants or moisture. If the operation is stopped, the machine should be covered with a piece of oil-paper plastic or similar information. If the machine can be viewed without having to disassemble, remove the unshielded bearing. Use a brush for application to remove it with a petroleum solvent; then dry it with a lint-free cloth or blow it with compressed air (focus on not letting the bearing assembly start to rotate). Use a small mirror and a similar dentist. Kind of probe to view the track surface of the bearing, the holder and the beads. It is not necessary to remove the seal or dustproof bearing, only scrub the external appearance. If the bearing is damaged, it needs to be replaced. At the time stop Replacing the bearing during the protection period is far more economical than the loss of the Russian-style stop selected due to the damage of the array.
Smoothing agent is very important not only to align the bearings; but also to all iko thrust ball bearings. But please pay attention; Japanese bearings should not add too much smooth grease. Then replace the smoothing agent of the bearing. Use oil smooth bearings in After rinsing the old engine oil; if it is possible; you should refill the fresh oil and let the machine spin at low speed for a few minutes. Try to get the oil to collect the residual contaminants; then drain the oil. Use grease. Smooth bearings in the replacement of grease; the use of the cutter should prevent the cotton material from touching any part of the bearing. Because these residual fibers can be wedged between the tumbling members and form damage; Use more attention to this problem.
Not only iko thrust ball bearing workpiece surface quality is poor; and the workpiece resistance to crystal corrosion is reduced. When the iko thrust ball bearing workpiece is severely overheated, the grain coarsening occurs; together, the steel 8 body volume is added; easy to form the workpiece thermal processing function Deterioration. lcrl8Ni9Ti stainless steel accompanying body or flange parts when exposed to overheating; prone to orange peel appearance defects.
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Analysis of the heat problem after IKO thrust ball bearing operation
Source: China Bearing Network Time: 2013-07-01