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Single row tapered roller bearings

32909XU - NTN

32909XU

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 diameter45 mm
D - External diameter68 mm
B - Bearing/Inner ring width15 mm
C - Outer ring width12 mm
T - Total width15 mm
a - Charge load application point12 mm
rs - Min fillet radius0,6 mm
r1s - Min fillet radius0,6 mm
Mass0,187 kg
ISO 355 referenceT2BC045
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PRODUCT PERFORMANCE
C - Dynamic load37,5 kN
C0 - Static load51,5 kN
Cu - Fatigue limit load6,3 kN
A2 - Rating life coefficient1
e - Coefficient0.32
Y0 - Static axial load coefficient1.04
Y2 - Upper axial load coefficient1.88
N lim - Oil lubrication limit speed7000 tr/min
N lim - Grease lubrication limit speed5300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR50 mm
db min - Min IR shoulder diameter50 mm
Da max - Max shoulder diameter OR63,5 mm
Db min - Min OR shoulder diameter64,5 mm
ra max - Max fillet radius0,6 mm
r1a - Max fillet radius0,6 mm
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