Structural design is reasonable at the same time have advanced, will have a longer bearing life. Manufacture of bearings generally have to go through forging, heat treatment, turning, grinding and assembly of multi-channel processing. Reasonable process, advanced, will also affect the stability of the bearing life. Which affect the quality of the finished bearing the heat treatment and grinding processes, often with NSK bearing failure have a more direct relationship. Non-standard bearings in recent years, studies have shown that metamorphic layer on the surface of the work, the quality of the close of the grinding process and the bearing surface.
NSK bearing structure, with conditions, in general, due to the multi-axis rotation, so the inner ring needs interference fit. Cylindrical bore bearings, multi-purpose pressed into the press, or hot charging method. Taper occasions, installed directly on the taper shaft or sleeve installation. Usually clearance fit when mounted to the housing, the outer ring with the amount of interference, usually pressed into the press or shrink fit method installed after the cooling. With a dry ice as coolant, shrink fit the occasion of the installation, the moisture in the air condenses on the surface of the bearing. So, you need the appropriate anti-corrosion measures.
1, cylindrical and elliptical bearing headspace can be manually scrape or allow NSK Bearings carved face padded adjusted.
2, multi-oil wedge tilting bearing is not allowed to repair scratch pad, the gap should be replaced due to the tile inappropriate. Adjustable tile thickness by adjusting the amount of watts adjustment block under the back of the tile and stainless steel pad, or thinning the thickness of the adjustment block. Attention to the multi-oil wedge tilting bearing the same group tile thickness error should be less than 0.01mm.
3, multi-oil wedge fixed bearing, in principle, allow the repair scratch and adjust the bearing clearance, clearance inappropriate should be replaced with new tile.
4, repair scratch padded turning cylindrical and elliptical bearing backlash, can be manually scrape or NSK Bearings carved face adjustment