6306 - 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.


3D file

Technical datasheet

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d - Internal diameter 30 mm
D - External diameter 72 mm
B - Bearing/Inner ring width 19 mm
rs - Min fillet radius 1,1 mm
Radial clearance class CN
Mass 0,36 kg
Brand NTN
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C - Dynamic load 29,5 kN
C0 - Static load 15 kN
Cu - Fatigue limit load 1,14 kN
f0 - Coefficient 13.3
Nlim - Oil lubrication limit speed 12000 tr/min
Nlim - Grease lubrication limit speed 10000 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C


da min - Min shoulder diameter IR 36,5 mm
Da max - Max shoulder diameter OR 65,5 mm
ra max - Max shaft & housing fillet radius 1 mm
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