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634 - 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 diameter4 mm
D - External diameter16 mm
B - Bearing/Inner ring width5 mm
rs - Min fillet radius0,3 mm
Radial clearance classCN
Mass0,006 kg
Product classification image
C - Dynamic load1,94 kN
C0 - Static load0,68 kN
Cu - Fatigue limit load0,023 kN
f0 - Coefficient12.4
Nlim - Oil lubrication limit speed44000 tr/min
Nlim - Grease lubrication limit speed37000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
da min - Min shoulder diameter IR6 mm
Da max - Max shoulder diameter OR14 mm
ra max - Max shaft & housing fillet radius0,3 mm
Product classification image
Calcul factors image