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

Spherical roller bearings

21319KD1 - NTN

21319KD1

Spherical roller bearing, one-piece machined cage, groove and lubrication holes on outer ring, tapered bore 1:12

The spherical roller bearing withstands significant loads and misalignments. This type of roller bearing is well adapted to harsh operating conditions: impacts or vibrations (crushers, vibrating screens, heavy handling, etc.). With the ULTAGE design, NTN offers as standard, unsurpassed endurance and longevity.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter95 mm
D - External diameter200 mm
B - Bearing/Inner ring width45 mm
d2 - External diameter inner ring131,4 mm
D1 - Inner diameter outer ring171 mm
rs - Min fillet radius3 mm
Number of lubrication holes4
b - Groove width7 mm
k - Hole diameter4 mm
Associated sleeve referenceH319
Radial clearance classCN
Mass7 kg
undefined
PRODUCT PERFORMANCE
C - Dynamic load375 kN
C0 - Static load420 kN
Cu - Fatigue limit load54 kN
e - Coefficient0.22
Y0 - Static axial load coefficient2.94
Y1 - Lower axial load coefficient3.01
Y2 - Upper axial load coefficient4.48
N lim - Oil lubrication limit speed2700 tr/min
N lim - Grease lubrication limit speed2100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR109 mm
db - Min diameter for Sleeve102 mm
Ce - Min length fro Sleeve7 mm
Da max - Max shoulder diameter OR186 mm
ra max - Max shaft & housing fillet radius2,5 mm
undefined