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Single row tapered roller bearings

32921XA - NTN

32921XA

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
BrandNTN
d - Internal diameter105 mm
D - External diameter145 mm
B - Bearing/Inner ring width25 mm
C - Outer ring width20 mm
T - Total width25 mm
a - Charge load application point25 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass1,2 kg
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PRODUCT PERFORMANCE
C - Dynamic load139 kN
C0 - Static load219 kN
Cu - Fatigue limit load25 kN
A2 - Rating life coefficient1
e - Coefficient0.34
Y0 - Static axial load coefficient0.97
Y2 - Upper axial load coefficient1.76
N lim - Oil lubrication limit speed3000 tr/min
N lim - Grease lubrication limit speed2300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR113,5 mm
db min - Min IR shoulder diameter113,5 mm
Da min - Min shoulder diameter OR131,5 mm
Da max - Max shoulder diameter OR136,5 mm
Db min - Min OR shoulder diameter140,5 mm
Ca - Min clearance5 mm
Cb - Min clearance5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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