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6980 - NTN

6980

The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter400 mm
D - External diameter540 mm
B - Bearing/Inner ring width65 mm
d1 - External diameter inner ring445,2 mm
D1 - Inner diameter outer ring494,8 mm
rs - Min fillet radius4 mm
Radial clearance classCN
Mass42,1 kg
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PRODUCT PERFORMANCE
C - Dynamic load370 kN
C0 - Static load535 kN
Cu - Fatigue limit load16,4 kN
f0 - Coefficient16.5
N lim - Oil lubrication limit speed1200 tr/min
N lim - Grease lubrication limit speed990 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR416 mm
da max - Max shoulder diameter IR445 mm
Da max - Max shoulder diameter OR524 mm
ra max - Max shaft & housing fillet radius3 mm
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