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Double-row self-aligning ball bearings

1215 - SNR

1215

Self-aligning ball bearing, pressed steel cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter75 mm
D - External diameter130 mm
B - Bearing/Inner ring width25 mm
d1 - External diameter inner ring93,2 mm
D1 - Inner diameter outer ring113,6 mm
rs - Min fillet radius1,5 mm
Radial clearance classCN
Precision classP0
Mass1,341 kg
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PRODUCT PERFORMANCE
C - Dynamic load38,4 kN
C0 - Static load15,7 kN
Cu - Fatigue limit load0,7 kN
e - Coefficient0.18
Y0 - Static axial load coefficient3.77
Y1 - Lower axial load coefficient3.6
Y2 - Upper axial load coefficient5.57
N ref - Reference thermal speed5500 tr/min
N lim - Mechanical Limit Speed6600 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8,774 Hz
BPFI - Over rolling frequency on inner (60 rpm)11,226 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,98 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,99 Hz
FTF - Rotational frequency - cage (60 rpm)0,439 Hz
ABUTMENT
da min - Min shoulder diameter IR83 mm
Da max - Max shoulder diameter OR122 mm
ra max - Max shaft & housing fillet radius1,5 mm
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