NSK Cylindrical Roller Bearings, Single-Row  NF-Type, NF304W ,D=20 YG-1 Double-Row Angular Contact Ball Bearings

Double-Row Angular Contact Ball Bearings

Model 47Z-XB

0 ①Soft material: Copper pipe and electric wire ②Soft steel: Steel which less than 80HRB in hardness

(kg) KF2 10~40 80 0

Surface treatment : Steam Tempered(Black Oxide Finish)Application : Drilling deep holes in steels

NSK Cylindrical Roller Bearings, Single-Row  NF-Type, NF304W ,D=20 YG-1 Double-Row Angular Contact Ball BearingsNSK Cylindrical Roller Bearings, Single Row NF Type, NF304W ,D=20 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min 1) Mass (kg) approx. d D B r min. r1 min. Fw Ew Cr C0r Thermal Reference Mechanical Grease Oil NF304W 20 52 15 1. 1 0. 6 44. 5 21. 4 17. 3 14000 10000 12000 0. 153 DESIGN, TYPES, AND FEATURES Cylindrical roller bearings are classified into the following types depending on whether or not they have ribs