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Double row angular contact ball bearings

5208.NRZZG15 - SNR

5208.NRZZG15

Double row angular contact ball bearing, polyamide cage, snap ring and groove on outer diameter, shield on both sides

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter40 mm
D - External diameter80 mm
B - Bearing/Inner ring width30,2 mm
d1 - External diameter inner ring53 mm
D1 - Inner diameter outer ring71,3 mm
a - Charge load application point40,9 mm
α - Contact angle25 °
a min - Min position Groove3,07 mm
a max - Max position groove3,28 mm
rs - Min fillet radius1,1 mm
rNs - Min fillet radius0,6 mm
D3 - Max bottom groove diameter76,81 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 ring86,6 mm
f - Stop ring thickness1,65 mm
Snap ring referenceR 80
Radial clearance classCN
Precision classP0
Mass0,55 kg
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PRODUCT PERFORMANCE
C - Dynamic load46,1 kN
C0 - Static load36,3 kN
Cu - Fatigue limit load2,22 kN
f0 - Coefficient14.2
N ref - Reference thermal speed7100 tr/min
N lim - Mechanical Limit Speed6500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,65 Hz
BPFI - Over rolling frequency on inner (60 rpm)5,35 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,629 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,315 Hz
FTF - Rotational frequency - cage (60 rpm)0,406 Hz
ABUTMENT
da min - Min shoulder diameter IR46,5 mm
da max - Max shoulder diameter IR53 mm
Da max - Max shoulder diameter OR73,5 mm
Ca min - Mini segment position4,67 mm
Ca max - Max segment position4,98 mm
ra max - Max shaft & housing fillet radius1 mm
rNa max - Max fillet radius on segment side0,6 mm
Db min - Min stop ring position diameter88 mm
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