
Standard Series 
ISO-standards-based precision bearings NSK Precision Series 
· 70 series, 79 series, 72 series 
· Three contact angle 15 ° (C), 25 ° (A5), 30 ° (A) 
· There are two outer cage guided phenolic resin cage (TR), rolling guided polyamide resin cage (TYN), can be selected according to the different nature.