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Single row tapered roller bearings

32208A - SNR

32208A

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 diameter40 mm
D - External diameter80 mm
B - Bearing/Inner ring width23 mm
C - Outer ring width19 mm
T - Total width24,75 mm
d1 - External diameter inner ring58,8 mm
a - Charge load application point19,2 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass0,532 kg
ISO 355 referenceT3DC040
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PRODUCT PERFORMANCE
C - Dynamic load85 kN
A2 - Rating life coefficient1
C0 - Static load96,6 kN
Cu - Fatigue limit load11,8 kN
e - Coefficient0.37
Y0 - Static axial load coefficient0.88
Y2 - Upper axial load coefficient1.6
N ref - Reference thermal speed5300 tr/min
N lim - Mechanical Limit Speed9200 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)7,121 Hz
BPFI - Over rolling frequency on inner (60 rpm)9,879 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,824 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,912 Hz
FTF - Rotational frequency - cage (60 rpm)0,419 Hz
ABUTMENT
da max - Max shoulder diameter IR48 mm
db min - Min IR shoulder diameter48,5 mm
Da min - Min shoulder diameter OR68 mm
Da max - Max shoulder diameter OR71,5 mm
Db min - Min OR shoulder diameter75 mm
Ca - Min clearance3 mm
Cb - Min clearance5,5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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