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Single row tapered roller bearings

4T-28995/28921 - NTN

4T-28995/28921

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.

This kit contains the following reference(s)

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter62,738 mm
D - External diameter100 mm
B - Bearing/Inner ring width25,4 mm
C - Outer ring width19,845 mm
T - Total width25,4 mm
a - Charge load application point22,9 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius3,3 mm
Mass0,7 kg
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PRODUCT PERFORMANCE
C - Dynamic load100 kN
C0 - Static load134 kN
A2 - Rating life coefficient1
e - Coefficient0.43
Y0 - Static axial load coefficient0.78
Y2 - Upper axial load coefficient1.41
N lim - Oil lubrication limit speed4700 tr/min
N lim - Grease lubrication limit speed3500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR69 mm
db min - Min IR shoulder diameter75 mm
Da max - Max shoulder diameter OR96 mm
Db min - Min OR shoulder diameter89 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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