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Single row tapered roller bearings

33210A - SNR

33210A

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 diameter50 mm
D - External diameter90 mm
B - Bearing/Inner ring width32 mm
C - Outer ring width24,5 mm
T - Total width32 mm
d1 - External diameter inner ring70,4 mm
a - Charge load application point23,3 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass0,825 kg
ISO 355 referenceT3DE050
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PRODUCT PERFORMANCE
C - Dynamic load118 kN
A2 - Rating life coefficient1
C0 - Static load155 kN
Cu - Fatigue limit load18,9 kN
e - Coefficient0.41
Y0 - Static axial load coefficient0.8
Y2 - Upper axial load coefficient1.45
N ref - Reference thermal speed4800 tr/min
N lim - Mechanical Limit Speed7700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8,187 Hz
BPFI - Over rolling frequency on inner (60 rpm)10,813 Hz
BSF - Over rolling frequency on rolling element (60 rpm)6,843 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,422 Hz
FTF - Rotational frequency - cage (60 rpm)0,431 Hz
ABUTMENT
da max - Max shoulder diameter IR57 mm
db min - Min IR shoulder diameter57 mm
Da min - Min shoulder diameter OR77 mm
Da max - Max shoulder diameter OR83 mm
Db min - Min OR shoulder diameter87 mm
Ca - Min clearance5 mm
Cb - Min clearance7,5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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