Product Series
N 10 series super-precision single row cylindrical roller bearings come standard with a 1:12 tapered bore (model suffix K). The tapered bore allows for precise adjustment of clearance or preload during installation. Ultra-precision single-row cylindrical roller bearings have higher speed performance than double-row bearings.
The NN 30 series is available with cylindrical bore or 1:12 conical bore (model suffix K). Cylindrical roller bearings with tapered bores are more popular than those with cylindrical bores in machine tool applications because the taper allows for more precise adjustment of clearance or preload during installation.