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Maintenance of good bearing is a prerequisite for bearing operation commonly used in conservation is to read how to choose the bearing lubrication, and understand the lubrication under the premise of conservation of the bearing system understanding is also necessary for the lubrication of the bearing, Here let us look at how the NSK bearing lubrication maintenance.
(1) to maintain a clean bearing lubrication
NSK Bearings, a check should first clean the bearing surface, then carefully check the bearing oil seal and the surrounding parts have shown undesirable symptoms, be sure to replace the out bad oil seal can cause damage, so that the bearing cloud unusual cause of equipment downtime.
Note that the coverage of exposed bearing
Do not let the check bearing bearings exposed to the environment of contaminants or moisture. If the interruption of work should be based on the greaseproof paper of plastic sheeting or similar material to cover once the machine. Cleaning the exposed bearings without disassembling the case may perform a check, coated with a petroleum solvent cleaning to coating with the brush, then dry with a lint cloth or compressed air dryer (be careful not to let bearing assemblies starting rotation). Kind of probe used by a small mirror and similar dentist to check the track surface of the bearing retainer and beads. Not cleaning encryption cover or dust bearing; wipe the external surface can be. If the bearing was damage to the circumstances that need replacing. Replacement of bearing much more economical due to the array bearing damage selected as the sudden stop loss in the regular shutdown maintenance period.
Check bearing lubricant
The lubricant is very important not only for the bearing, but also for all of NSK Bearings. Note, however, the Japanese bearings should not add too much grease. Then is to replace the bearing lubricant. The use of oil lubricated bearings diarrhea in addition to the old oil, if you can, it should be re-poured fresh oil and the machine a few minutes at low speed rotation. As much as possible so that the oil to the collection of residual contaminants, and then diarrhea among these oil. The use of grease lubricated bearings in the replacement of grease used Joe in addition to the device should be avoided with a cotton material come into contact with any part of the bearing. Because these residual fibers may be wedged in between the rolling elements and cause damage, especially bearing applications should pay more attention to this problem.
Step 3 can be a good conservation of the bearing, to use the life of greatly increased, saving the cost of the operation.
Not only the poor NSK Bearings workpiece surface quality and workpiece resistance to intergranular corrosion decreased. NSK Bearings workpiece serious overheating, coarse grains, but also ferritic steel increased and could easily lead to the deterioration of the workpiece thermal processing performance. lcrl8Ni9Ti stainless steel to accompany the body or flange when overheating, easy to produce orange peel-like surface defects.
To this end, the following preventive measures:
(1) strict control lcrl8Ni9 ri, stainless steel box flange of forging heating temperature and heating holding time, to prevent the workpiece overheating the workpiece to produce coarse grain defects.
(2) work piece forging production, such as the forging ratio is too small, the final forging temperature is high, prone to coarse grained microstructure defects, the workpiece forging ratio appropriate, full and final forging temperature is moderate.
(3) NSK bearing workpiece heat treatment solution treatment temperature is not too high, the holding time should not be too long, the heating temperature should be not higher than 1150 "C, holding time to 1-l_5min/mm calculation is appropriate.
(4), can be used to change the thick workpiece overheating organizations forging grain refinement method to eliminate defects, to prevent the workpiece in the cold deformation orange peel-like surface defects, to improve the quality of the workpiece surface.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 16034 NSK | 170 | 260 | 28 |
| 6934 NSK | 170 | 230 | 28 |