기능

• The inner ring is subjected to high-precision grinding after heat treatment.
• Needle roller bearings are normally used as raceway surfaces after heat-treating and grinding the shaft. However, this inner ring is used when the surface of the shaft cannot be processed to the specified hardness or roughness.
• Because of the large number of dimensions, a wide inner ring can be selected when the shaft moves axially or when a sealing seal is used adjacent to the shaft.
• This inner ring can also be used as a bushing and is economical without the need for reprocessing.