Series Overview

Inch series tapered roller bearings are NSK's ISO 355 inch-series tapered roller bearing lineup (NSK's official master catalog CAT. No. E1103d Part C), covering a 12.000–206.375 mm bore range. This category sits alongside Nahshon's existing metric tapered roller bearing category (30200/30300/32000X/32200/32300 series) without overlap, serving customers inquiring with inch drawings or Timken-style designations.

Cone/Cup Supply

Inch series tapered roller bearings are supplied as a cone (inner ring assembly with rollers and cage) and cup (outer ring), used together and individually replaceable depending on wear — dimension system compatible with Timken-style designations, with common examples such as LM11749/LM11710.

Selection & Support

This category includes many part numbers. Nahshon, an NSK distributor in Taiwan, offers full part-number lookup and sourcing support — add the part number to your inquiry list and we will confirm the current code, spec and quote with the factory; sourcing support is also available for discontinued models.