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Koyo NA Needle Roller Bearing / Inner Ring
NA Metric Series Needle Roller Bearings with Inner Rings. NA needle roller bearings are useful when the shaft can't serve as the raceway. Inner rings can be used when the shaft meets design needs. NA series bearings come with inner rings for a complete set. Koyo NA bearings meet ISO quality standards. Available in various styles, with or without inner rings and seals.
Metric Series Needle Roller Bearing with inner rings. When the shaft can not be used as the inner raceway, needle roller bearings with inner rings provide advantages. When it is practical to finish the shaft to meet the desired raceway design requirements, an inner ring may be used. Standard needle roller bearings are available with inner rings (such as this NA series) to form a complete bearing. Bearings furnished with inner rings meet the quality requirements in accordance with ISO standards. Needle roller bearings are available in different styles with and without inner rings and seals.