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Spherical roller bearings

21307EAW33C3 - NTN

21307EAW33C3

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

  • 3D file

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter35 mm
D - External diameter80 mm
B - Bearing/Inner ring width21 mm
d2 - External diameter inner ring50,6 mm
D1 - Inner diameter outer ring69 mm
rs - Min fillet radius1,5 mm
Number of lubrication holes3
b - Groove width6,2 mm
k - Hole diameter2,5 mm
Radial clearance classC3
Mass0,527 kg
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PRODUCT PERFORMANCE
C - Dynamic load88,5 kN
C0 - Static load78,5 kN
Cu - Fatigue limit load9,6 kN
e - Coefficient0.24
Y0 - Static axial load coefficient2.73
Y1 - Lower axial load coefficient2.79
Y2 - Upper axial load coefficient4.15
N ref - Reference thermal speed6900 tr/min
N lim - Mechanical Limit Speed10000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature200 °C
ABUTMENT
da min - Min shoulder diameter IR44 mm
Da max - Max shoulder diameter OR71 mm
ra max - Max shaft & housing fillet radius1,5 mm
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