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608 - SNR

608

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.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter8 mm
D - External diameter22 mm
B - Bearing/Inner ring width7 mm
d1 - External diameter inner ring11,2 mm
D1 - Inner diameter outer ring19,1 mm
rs - Min fillet radius0,3 mm
Radial clearance classCN
Mass0,011 kg
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PRODUCT PERFORMANCE
C - Dynamic load3,45 kN
C0 - Static load1,37 kN
Cu - Fatigue limit load0,06 kN
f0 - Coefficient12.4
N ref - Reference thermal speed32000 tr/min
N lim - Mechanical Limit Speed57000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)2,574 Hz
BPFI - Over rolling frequency on inner (60 rpm)4,426 Hz
BSF - Over rolling frequency on rolling element (60 rpm)3,515 Hz
BRF - Rotational frequency – rolling element (60 rpm)1,758 Hz
FTF - Rotational frequency - cage (60 rpm)0,368 Hz
ABUTMENT
da min - Min shoulder diameter IR10 mm
da max - Max shoulder diameter IR0 mm
Da max - Max shoulder diameter OR20 mm
ra max - Max shaft & housing fillet radius0,3 mm
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