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Single row tapered roller bearings

32024A - SNR

32024A

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 diameter120 mm
D - External diameter180 mm
B - Bearing/Inner ring width38 mm
C - Outer ring width29 mm
T - Total width38 mm
d1 - External diameter inner ring149,9 mm
a - Charge load application point39,3 mm
rs - Min fillet radius2,5 mm
r1s - Min fillet radius2 mm
Mass3,16 kg
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PRODUCT PERFORMANCE
C - Dynamic load248 kN
A2 - Rating life coefficient1
C0 - Static load395 kN
Cu - Fatigue limit load42,7 kN
e - Coefficient0.46
Y0 - Static axial load coefficient0.72
Y2 - Upper axial load coefficient1.31
N ref - Reference thermal speed2500 tr/min
N lim - Mechanical Limit Speed3700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)12,688 Hz
BPFI - Over rolling frequency on inner (60 rpm)15,312 Hz
BSF - Over rolling frequency on rolling element (60 rpm)10,116 Hz
BRF - Rotational frequency – rolling element (60 rpm)5,058 Hz
FTF - Rotational frequency - cage (60 rpm)0,453 Hz
ABUTMENT
da max - Max shoulder diameter IR131 mm
db min - Min IR shoulder diameter130 mm
Da min - Min shoulder diameter OR161 mm
Da max - Max shoulder diameter OR170 mm
Db min - Min OR shoulder diameter173 mm
Ca - Min clearance7 mm
Cb - Min clearance9 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius2 mm
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