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

Single row tapered roller bearings

30328U - NTN

30328U

Tapered roller bearing, pressed steel cage

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter140 mm
D - External diameter300 mm
B - Bearing/Inner ring width62 mm
C - Outer ring width53 mm
T - Total width67,75 mm
d1 - External diameter inner ring210 mm
a - Charge load application point56,5 mm
rs - Min fillet radius5 mm
r1s - Min fillet radius4 mm
Mass21,2 kg
ISO 355 referenceT2GB140
undefined
PRODUCT PERFORMANCE
C - Dynamic load735 kN
C0 - Static load950 kN
Cu - Fatigue limit load91,3 kN
A2 - Rating life coefficient1
e - Coefficient0.35
Y0 - Static axial load coefficient0.96
Y2 - Upper axial load coefficient1.74
N lim - Oil lubrication limit speed1700 tr/min
N lim - Grease lubrication limit speed1300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR175,5 mm
db min - Min IR shoulder diameter162 mm
Da min - Min shoulder diameter OR252 mm
Da max - Max shoulder diameter OR282 mm
Db min - Min OR shoulder diameter275,5 mm
Ca - Min clearance9 mm
Cb - Min clearance14,5 mm
ra max - Max fillet radius4 mm
r1a - Max fillet radius3 mm
undefined