Tapered roller bearing / double-row / long-life:The Double Row Tapered Roller Bearings from NSK is guaranteed to have a longer service life. To ensure durability and sturdiness, the materials were heat-treated to strengthen the bearings. An internal clearance at the start is performed to provide maximum preloading for the bearings. These bearings are ideal for main shaft support applications.
Cylindrical roller bearing:One-row, or single-row, cylindrical bearings are available in six types: NU, N, NJ, NF, NP, and NUP. Industry standard nomenclature is listed in parenthesis below.
NU (RIU, RU)
Timken’s version of the industry-standard NU one-row cylindrical bearing is the most popular in our line-up, with the separable inner ring and the cage and roller complement mounted to the outer ring.