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6008NR - NTN

6008NR

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.

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
d - Internal diameter40 mm
D - External diameter68 mm
B - Bearing/Inner ring width15 mm
a min - Min position Groove2,29 mm
a max - Max position groove2,49 mm
rs - Min fillet radius1 mm
rNs - Min fillet radius0,5 mm
D3 - Max bottom groove diameter64,82 mm
b min - Min groove width1,9 mm
b max - Max groove width2,2 mm
r0 max - Max bottom groove radius0,6 mm
D4 max - Max outer diameter of assembled stop ring74,6 mm
f - Stop ring thickness1,7 mm
Snap ring referenceR68
Radial clearance classCN
Mass0,19 kg
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PRODUCT PERFORMANCE
C - Dynamic load18,6 kN
C0 - Static load11,5 kN
Cu - Fatigue limit load0,89 kN
f0 - Coefficient15.2
Nlim - Oil lubrication limit speed12000 tr/min
Nlim - Grease lubrication limit speed10000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR45 mm
Da max - Max shoulder diameter OR63 mm
ra max - Max shaft & housing fillet radius1 mm
rNa max - Max fillet radius on segment side0,5 mm
Ca min - Mini segment position3,89 mm
Ca max - Max segment position4,19 mm
Db min - Min stop ring position diameter76 mm
Product classification image
Calcul factors image