• English
  • Français
  • Deutsch
  • Italiano
  • Español
  • Português do Brasil
  • Polski
  • Русский
  • Türkçe

Needle roller bearing, machined-ring, without inner ring

RNA6903R - NTN

RNA6903R

Needle roller bearing, machined-ring, without inner ring, double-side ribs, lubrication hole

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
Fw - Under rollers diameter22 mm
D - External diameter30 mm
C - Width of bearing, drawn cup or outer ring23 mm
rs - Min fillet radius0,3 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter2,5 mm
Radial clearance classCN
Precision classP0
Mass0,042 kg
undefined
PRODUCT PERFORMANCE
Cr - Dynamic load rating18,2 kN
C0r - Static load rating27,2 kN
N lim - Grease lubrication limit speed12000 tr/min
N lim - Oil lubrication limit speed18000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
Da max - Max shoulder diameter OR28 mm
ras max - Max shaft & housing fillet radius0,3 mm