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Single row tapered roller bearings

32007A - SNR

32007A

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 diameter35 mm
D - External diameter62 mm
B - Bearing/Inner ring width18 mm
C - Outer ring width14 mm
T - Total width18 mm
d1 - External diameter inner ring50,5 mm
a - Charge load application point15,2 mm
rs - Min fillet radius1 mm
r1s - Min fillet radius1 mm
Mass0,225 kg
ISO 355 referenceT4CC035
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PRODUCT PERFORMANCE
C - Dynamic load45,1 kN
A2 - Rating life coefficient1
C0 - Static load59,1 kN
Cu - Fatigue limit load7,2 kN
e - Coefficient0.45
Y0 - Static axial load coefficient0.73
Y2 - Upper axial load coefficient1.32
N ref - Reference thermal speed6900 tr/min
N lim - Mechanical Limit Speed12000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)10,211 Hz
BPFI - Over rolling frequency on inner (60 rpm)12,789 Hz
BSF - Over rolling frequency on rolling element (60 rpm)8,434 Hz
BRF - Rotational frequency – rolling element (60 rpm)4,217 Hz
FTF - Rotational frequency - cage (60 rpm)0,444 Hz
ABUTMENT
da max - Max shoulder diameter IR40 mm
db min - Min IR shoulder diameter40,5 mm
Da min - Min shoulder diameter OR54 mm
Da max - Max shoulder diameter OR56,5 mm
Db min - Min OR shoulder diameter59 mm
Ca - Min clearance4 mm
Cb - Min clearance4 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm
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