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Spherical roller bearings

239/500C3 - NTN

239/500C3

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 diameter500 mm
D - External diameter670 mm
B - Bearing/Inner ring width128 mm
d2 - External diameter inner ring547 mm
D1 - Inner diameter outer ring621 mm
rs - Min fillet radius5 mm
Number of lubrication holes8
b - Groove width20 mm
k - Hole diameter12 mm
Radial clearance classC3
Mass131 kg
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PRODUCT PERFORMANCE
C - Dynamic load2640 kN
C0 - Static load5600 kN
Cu - Fatigue limit load460 kN
e - Coefficient0.17
Y0 - Static axial load coefficient3.93
Y1 - Lower axial load coefficient4.02
Y2 - Upper axial load coefficient5.98
N lim - Oil lubrication limit speed560 tr/min
N lim - Grease lubrication limit speed430 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR522 mm
Da max - Max shoulder diameter OR648 mm
ra max - Max shaft & housing fillet radius4 mm
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