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31310A - SNR

31310A

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter50 mm
D - External diameter110 mm
B - Bearing/Inner ring width27 mm
C - Outer ring width19 mm
T - Total width29,25 mm
d1 - External diameter inner ring80,6 mm
a - Charge load application point34,8 mm
rs - Min fillet radius2,5 mm
r1s - Min fillet radius2 mm
Mass1,214 kg
ISO 355 referenceT7FB050
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PRODUCT PERFORMANCE
C - Dynamic load118 kN
A2 - Rating life coefficient1
C0 - Static load128 kN
Cu - Fatigue limit load15,7 kN
e - Coefficient0.83
Y0 - Static axial load coefficient0.4
Y2 - Upper axial load coefficient0.73
N ref - Reference thermal speed4300 tr/min
N lim - Mechanical Limit Speed6500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)6,718 Hz
BPFI - Over rolling frequency on inner (60 rpm)9,282 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,328 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,664 Hz
FTF - Rotational frequency - cage (60 rpm)0,42 Hz
ABUTMENT
da max - Max shoulder diameter IR62 mm
db min - Min IR shoulder diameter60 mm
Da min - Min shoulder diameter OR87 mm
Da max - Max shoulder diameter OR100 mm
Db min - Min OR shoulder diameter104 mm
Ca - Min clearance4 mm
Cb - Min clearance10 mm
ra max - Max fillet radius2,5 mm
r1a - Max fillet radius2 mm
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