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6838 - NTN

6838

Deep groove ball bearing, radial contact, machined cage, open

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.

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
d - Internal diameter190 mm
D - External diameter240 mm
B - Bearing/Inner ring width24 mm
rs - Min fillet radius1,5 mm
Radial clearance classCN
Mass2,62 kg
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PRODUCT PERFORMANCE
C - Dynamic load81 kN
C0 - Static load88 kN
Cu - Fatigue limit load4 kN
f0 - Coefficient16.1
Nlim - Oil lubrication limit speed2900 tr/min
Nlim - Grease lubrication limit speed2400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)11,158 Hz
BPFI - Characteristic inner ring frequency (60 rpm)12,842 Hz
FTF - Characteristic cage frequency (60 rpm)0,465 Hz
BSF - Characteristic rolling element frequency (60 rpm)14,186 Hz
ABUTMENT
da min - Min shoulder diameter IR198 mm
Da max - Max shoulder diameter OR232 mm
ra max - Max shaft & housing fillet radius1,5 mm
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