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Single row tapered roller bearings

32309.A - SNR

32309.A

Tapered roller bearing, pressed steel cage

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 diameter45 mm
D - External diameter100 mm
B - Bearing/Inner ring width36 mm
C - Outer ring width30 mm
T - Total width38,25 mm
d1 - External diameter inner ring71,1 mm
a - Charge load application point25,6 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass1,403 kg
ISO 355 referenceT2FD045
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PRODUCT PERFORMANCE
C - Dynamic load159 kN
A2 - Rating life coefficient1
C0 - Static load190 kN
Cu - Fatigue limit load23,2 kN
e - Coefficient0.35
Y0 - Static axial load coefficient0.96
Y2 - Upper axial load coefficient1.74
N ref - Reference thermal speed5000 tr/min
N lim - Mechanical Limit Speed7300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)6,567 Hz
BPFI - Over rolling frequency on inner (60 rpm)9,433 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,266 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,633 Hz
FTF - Rotational frequency - cage (60 rpm)0,41 Hz
ABUTMENT
da max - Max shoulder diameter IR56 mm
db min - Min IR shoulder diameter55 mm
Da min - Min shoulder diameter OR82 mm
Da max - Max shoulder diameter OR91,5 mm
Db min - Min OR shoulder diameter93 mm
Ca - Min clearance3 mm
Cb - Min clearance8 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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