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Single row tapered roller bearings

33211A - SNR

33211A

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 diameter55 mm
D - External diameter100 mm
B - Bearing/Inner ring width35 mm
C - Outer ring width27 mm
T - Total width35 mm
d1 - External diameter inner ring77,4 mm
a - Charge load application point25,1 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass1,154 kg
ISO 355 referenceT3DE055
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PRODUCT PERFORMANCE
C - Dynamic load150 kN
A2 - Rating life coefficient1
C0 - Static load198 kN
Cu - Fatigue limit load24,1 kN
e - Coefficient0.4
Y0 - Static axial load coefficient0.83
Y2 - Upper axial load coefficient1.5
N ref - Reference thermal speed4300 tr/min
N lim - Mechanical Limit Speed7000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8,138 Hz
BPFI - Over rolling frequency on inner (60 rpm)10,862 Hz
BSF - Over rolling frequency on rolling element (60 rpm)6,601 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,301 Hz
FTF - Rotational frequency - cage (60 rpm)0,428 Hz
ABUTMENT
da max - Max shoulder diameter IR62 mm
db min - Min IR shoulder diameter65 mm
Da min - Min shoulder diameter OR85 mm
Da max - Max shoulder diameter OR91,5 mm
Db min - Min OR shoulder diameter96 mm
Ca - Min clearance6 mm
Cb - Min clearance8 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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