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6338 - NTN


Deep groove ball bearing, radial contact, pressed steel 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.


Technical datasheet

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Internal diameter (d) 190 mm
External diameter (D) 400 mm
Bearing/Inner ring width (B) 78 mm
Min fillet radius (rs) 5 mm
Radial clearance class CN
Mass 41 kg
Brand NTN
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Dynamic load (C) 395 kN
Static load (C0) 415 kN
Fatigue limit load (Cu) 18,9 kN
Coefficient f0 14.1
Nlim (oil) 1900 tr/min
Nlim (grease) 1600 tr/min
Min operating temperature (Tmin) -40 °C
Max operating temperature (Tmax) 120 °C


Min shoulder diameter IR (da min) 210 mm
Max shoulder diameter OR (Da max) 380 mm
Max shaft & housing fillet radius (ra max) 4 mm
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