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Single row tapered roller bearings

32321U - NTN

32321U

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 diameter225 mm
B - Bearing/Inner ring width77 mm
C - Outer ring width63 mm
T - Total width81,5 mm
a - Charge load application point55 mm
rs - Min fillet radius3 mm
r1s - Min fillet radius2,5 mm
Mass14,7 kg
ISO 355 referenceT2GD105
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PRODUCT PERFORMANCE
C - Dynamic load680 kN
C0 - Static load825 kN
Cu - Fatigue limit load87 kN
A2 - Rating life coefficient1
e - Coefficient0.35
Y0 - Static axial load coefficient0.96
Y2 - Upper axial load coefficient1.74
N lim - Oil lubrication limit speed2300 tr/min
N lim - Grease lubrication limit speed1700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR123 mm
db min - Min IR shoulder diameter128 mm
Da max - Max shoulder diameter OR211 mm
Db min - Min OR shoulder diameter209 mm
ra max - Max fillet radius3 mm
r1a - Max fillet radius2,5 mm
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