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Single row tapered roller bearings

4T-1985/1932 - NTN

4T-1985/1932

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 diameter28,575 mm
D - External diameter58,738 mm
B - Bearing/Inner ring width19,355 mm
C - Outer ring width15,08 mm
T - Total width19,05 mm
d1 - External diameter inner ring42,5 mm
a - Charge load application point13,15 mm
Mass0,231 kg
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PRODUCT PERFORMANCE
C - Dynamic load45 kN
C0 - Static load44,5 kN
Cu - Fatigue limit load5,4 kN
A2 - Rating life coefficient1
e - Coefficient0.33
Y0 - Static axial load coefficient1
Y2 - Upper axial load coefficient1.82
N lim - Oil lubrication limit speed8900 tr/min
N lim - Grease lubrication limit speed6700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR33,5 mm
db min - Min IR shoulder diameter34 mm
Da max - Max shoulder diameter OR52 mm
Db min - Min OR shoulder diameter54 mm
ra max - Max fillet radius0,8 mm
r1a - Max fillet radius1,3 mm
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