One-way bearing ntn for general maintenance of the Integrated check parity law
Most favorable price : sales@hellerbearings.com
Fixed end bearings on the shaft before installation location: clean kerosene cleaning bearings, and to measure the end. For grease lubrication, the first organic solvent containing 3% to 5% grease injected one-way bearing for degreasing and cleaning, and then the oil gun quantitative grease fill the space (representing bearing ntn bearing about 10% ~ 15%); heating bearings to 20 ~ 30 ℃, oil press bearing into the shaft end pressure; tight sets against the bearing face so that the axial positioning of the shaft and the right pressure; spring balance of the tape volume The method of calibration to measure the starting torque required by the pre-load on the bearing outer ring, there are substantial changes (even if the bearings are correct, due to the mis-match or cage deformation, pre-load may also change).
Bearing - Axis combination into the bore: heated seat holes so that the temperature 20 ~ 30 ℃, continuous gently pressure will be one-way bearing - shaft combination load bore; adjust the front cover, so that the fastening of the front cover 0.02 ~ 0.05um bearing outer face, in contravention of the header of the dial gauge on the journal surface, the axis of rotation measured beating require the error below 10um; dial indicator positioned on the shaft header conflict with the rear hole surface, the axis to measure the bearing of the front and rear seat hole concentricity.
1, cleaning
Good appearance record ntn bearings removed for inspection, first with photography and other methods. In addition, to confirm the remaining amount of lubricant and lubricant sampling, and then cleaning the bearings.
a, one-way bearing cleaning of the coarse washing and fine wash, can be placed in the bottom of the container used in the metal grid.
b, coarse wash oil used brushes to clear grease or sticky materials. At this point, if ntn bearing rotating in the oil, pay attention because the foreign body and damage the raceway.
c, sperm washing, the oil in slowly rotating bearings should be carefully carried out.
Cleaning agents commonly used for the neutral does not contain water, diesel or kerosene, sometimes warm lye. No matter what kind of cleaning agent must often filter kept clean.
Immediately after cleaning, ntn bearings coated with anti-rust oil or antirust grease.
2, inspection and judgment
The judge removed one-way bearing ability to re-use, focused on checking the dimensional accuracy and precision of rotation, internal clearance and the mating surface raceway, cage and ring.
On the test results, can be used to ntn bearings or proficient bearing to judge.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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Measuring the size of the shaft and the bearing hole to determine the accuracy of their mutual cooperation, to meet the requirements for: taken by the inner ring and shaft interference with +4 um of the amount of interference (light load, high-precision 0) ; should take the outer ring and the bearing hole gap with the gap amount of 0 ~ +6 um (but in the free end of the bearing using one-way bearing, should increase the gap); axis and the surface of the bore roundness error below 2um, ntn bearings are with every other circle of the face parallel to the degree of 2um below, the shaft shoulder face the external face of the beating in the 2um following; bearing hole retaining shoulder on the axis of the beating in the 4um following; spindle front cover side face of the axis of the fluctuations also should be in the 4um following .Fixed end bearings on the shaft before installation location: clean kerosene cleaning bearings, and to measure the end. For grease lubrication, the first organic solvent containing 3% to 5% grease injected one-way bearing for degreasing and cleaning, and then the oil gun quantitative grease fill the space (representing bearing ntn bearing about 10% ~ 15%); heating bearings to 20 ~ 30 ℃, oil press bearing into the shaft end pressure; tight sets against the bearing face so that the axial positioning of the shaft and the right pressure; spring balance of the tape volume The method of calibration to measure the starting torque required by the pre-load on the bearing outer ring, there are substantial changes (even if the bearings are correct, due to the mis-match or cage deformation, pre-load may also change).
Bearing - Axis combination into the bore: heated seat holes so that the temperature 20 ~ 30 ℃, continuous gently pressure will be one-way bearing - shaft combination load bore; adjust the front cover, so that the fastening of the front cover 0.02 ~ 0.05um bearing outer face, in contravention of the header of the dial gauge on the journal surface, the axis of rotation measured beating require the error below 10um; dial indicator positioned on the shaft header conflict with the rear hole surface, the axis to measure the bearing of the front and rear seat hole concentricity.
1, cleaning
Good appearance record ntn bearings removed for inspection, first with photography and other methods. In addition, to confirm the remaining amount of lubricant and lubricant sampling, and then cleaning the bearings.
a, one-way bearing cleaning of the coarse washing and fine wash, can be placed in the bottom of the container used in the metal grid.
b, coarse wash oil used brushes to clear grease or sticky materials. At this point, if ntn bearing rotating in the oil, pay attention because the foreign body and damage the raceway.
c, sperm washing, the oil in slowly rotating bearings should be carefully carried out.
Cleaning agents commonly used for the neutral does not contain water, diesel or kerosene, sometimes warm lye. No matter what kind of cleaning agent must often filter kept clean.
Immediately after cleaning, ntn bearings coated with anti-rust oil or antirust grease.
2, inspection and judgment
The judge removed one-way bearing ability to re-use, focused on checking the dimensional accuracy and precision of rotation, internal clearance and the mating surface raceway, cage and ring.
On the test results, can be used to ntn bearings or proficient bearing to judge.
