# Field Notes on NJ shaft-positioning cylindrical roller

NJ shaft-positioning cylindrical roller is listed as an NJ-series cylindrical roller bearing for shaft positioning. Because a public millimetre sheet is thin on some catalog pages, confirm bore, outside diameter, and width against your drawing or the live product listing.

Typical duty includes shaft-positioning arrangements that use an NJ flange to limit axial offset. Material on this listing is bearing steel. If your equipment sits outside that range, say so on the request rather than forcing a familiar part number.

Do not substitute an NU type (no flanges on the inner ring) when the design needs NJ locating shoulders. No public model size is listed. NJ geometry locates the shaft axially in one direction; confirm the series size on the drawing.

Review NJ shaft-positioning cylindrical roller on the TFL Bearing Made-in-China listing. Shandong TFL Bearing Co., Ltd can confirm stock, packing, and any OEM marking once the drawing or sample is attached.