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6868 - NTN

6868

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 diameter340 mm
D - External diameter420 mm
B - Bearing/Inner ring width38 mm
rs - Min fillet radius2,1 mm
Radial clearance classCN
Mass11,5 kg
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PRODUCT PERFORMANCE
C - Dynamic load189 kN
C0 - Static load236 kN
Cu - Fatigue limit load8,05 kN
f0 - Coefficient16
N lim - Oil lubrication limit speed1500 tr/min
N lim - Grease lubrication limit speed1300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR351 mm
Da max - Max shoulder diameter OR409 mm
ra max - Max shaft & housing fillet radius2 mm
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