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Single row tapered roller bearings

4T-32306CR - NTN

4T-32306CR

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 diameter30 mm
D - External diameter72 mm
B - Bearing/Inner ring width27 mm
C - Outer ring width23 mm
T - Total width28,75 mm
a - Charge load application point23 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass0,594 kg
ISO 355 referenceT2FD030
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PRODUCT PERFORMANCE
C - Dynamic load77,5 kN
C0 - Static load88,5 kN
Cu - Fatigue limit load10,8 kN
A2 - Rating life coefficient1
e - Coefficient0.61
Y0 - Static axial load coefficient0.54
Y2 - Upper axial load coefficient0.99
N lim - Oil lubrication limit speed7300 tr/min
N lim - Grease lubrication limit speed5500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR38,5 mm
db min - Min IR shoulder diameter37 mm
Da max - Max shoulder diameter OR63,5 mm
Db min - Min OR shoulder diameter67,5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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