6018NR - NTN


Deep groove ball bearing, radial contact, pressed steel cage, snap ring & groove on outer diameter, 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) 90 mm
External diameter (D) 140 mm
Bearing/Inner ring width (B) 24 mm
Min position Groove a min 3,45 mm
Max position groove a max 3,71 mm
Mini segment position Ca min 6,17 mm
Max segment position Ca max 6,53 mm
Min fillet radius (rs) 1,5 mm
Min fillet radius rNs 0,5 mm
Max bottom groove diameter D3 135,23 mm
Min groove width b min 3,1 mm
Max groove width b max 3,4 mm
Max bottom groove radius r0 max 0,6 mm
Max outside diameter of assembled stop ring D4 max 149,7 mm
Stop ring thickness f 2,82 mm
Snap ring reference R140
Radial clearance class CN
Mass 1,02 kg
Brand NTN
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Dynamic load (C) 64,5 kN
Static load (C0) 49,5 kN
Fatigue limit load (Cu) 3,45 kN
Coefficient f0 15.6
Nlim (oil) 5600 tr/min
Nlim (grease) 4700 tr/min
Min operating temperature (Tmin) -40 °C
Max operating temperature (Tmax) 120 °C


Min shoulder diameter IR (da min) 98 mm
Max shoulder diameter OR (Da max) 132 mm
Max shaft & housing fillet radius (ra max) 1,5 mm
Max fillet radius on segment side rNa max 0,5 mm
Min stop ring position diameter Db min 152 mm
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