PRODUCT
How to run the TIMKEN bearing force application inspection
by:Waxing
2020-10-19
TIMKEN bearings after installation, in order to check whether installed correctly, check for running.
Small mechanical can rotate with the hand, to confirm whether to rotate smoothly.
Check project has caused by foreign bodies, scars, creasing seized up, due to bad installation, installation of seat processing bad moment is not stable, because the clearance is too small, installation error, seal friction caused by the torque is too big, and so on.
If there is no abnormal can start power operation.
(
1)
Work together as much as possible through the axis of the self-aligning ball bearing, which requires the screws even symmetry and smooth, by spherical or parallel to the axis force application.
(
2)
Wire should be smooth and uniform, the size of the unfavorable impact, this request can use hydraulic or use steady pull or pressure tool, it had to use hammer, also want to through soft without exfoliation metals such as copper sleeve to buffer, tapping force as gently as possible.
It is best to use copper or copper hammer hammer.
(
3)
Avoid by applying pressure roller, which requires the inner ring (installation
Axial circle)
When applying pressure through the inner ring and outer ring installation)
Through the outer power works.
(
4)
The extent of the drag force continued to be, for example, when installing a bearing in TIMKEN bearing fit into the correct position to stop work, guarantee the ring (
Washers)
The end face of landing on a hole or shaft shoulder end, neither packed too tight, nor does not reach the designated position.
Large machinery from manual rotation, so after no-load start immediately cut off the power, machine idle, check whether there is presence of vibration, noise, rotating parts contact, etc. , confirmed after no abnormalities, into power operation.
Dynamic operation, from the beginning of the no-load speed, slowly up to the rated operating conditions.
Test run to check the items, whether there is abnormal sound, TIMKEN bearing temperature, lubricant leakage or discoloration, and so on.
If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection.
TIMKEN bearing temperature, average according to the external temperature of the bearing.
But using the oil hole directly measuring the temperature of the bearing outer ring more accurate.
The bearing temperature, starting operation gradually increases, usually 1 ~ 2 hours after the temperature stability.
If the bearing installation, the temperature will rise sharply, abnormal high temperature.
The reason such as lubricant, bearing clearance is too small, too much bad installation, excessive friction sealing device, etc.
High-speed rotation, self-aligning ball bearing structure, selection of lubrication method error and its cause.
TIMKEN bearing examination such as the rotation of the sound with a stethoscope, a strong metal noise, such as vision, irregular note that exception.
Its reason has poor lubrication, shaft or precision bearing, self-aligning ball bearing damage, foreign body intrusion, etc.
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