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1) tracked KOYO bearings of rolling mill based on location and record.Full complement needle roller bearing maintenance service cards that can be used to record bearing seat, roll number, rack, bearing in rolling mill, bearing area and tonnage of rolled products in the outer ring and bearing data such as hours worked. Records should be kept up to date and is convenient for maintenance staff to check with, can record bearing in bottom margin measurement data and other test details;
2) removed from the roll bearing housing, remove the bearing from the housing. Both remove the bearing housings and are full complement needle roller bearings inspection requires special lifting methods and tools.
3) clean KOYO bearings. The cleaning of bearing in the process of removing all remnants of flakes, water, lubricants, and anything else dirt will result in excessive wear of the bearing. Clean the bearings used in washing and cleaning agents based on size or to clean the bearings bearing the number, small or small bearings available kerosene, mineral oil or other commercial solvents. For large or large bearings, viscosity for 40 ° c 22cSt (100SUS or 100 ° f) neutral oil cleaning tank cleaning.
4) check the KOYO bearings, including Visual inspection and minor repairs. Removed outer surface of the inner ring of the roller or roller on the surface, if you found a little of flaking or skin cracks, usually metal Flake with a grinding machine grinding and polishing surface of falling off the edge.
5) shall regularly check the degree of wear of the bearing, can be assessed by measuring bearing clearance wear of bearings;
6) depending on your needs, check and repair housing;
7) mount the bearing housings;
8) depending on your needs, roll neck inspection and maintenance;
9) with bearing housings mounted to roll.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7912CDF NSK | 60 | 85 | 13 |
| 7912A5DF NSK | 60 | 85 | 13 |