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Single row tapered roller bearings

4T-JM205149/JM205110PK - NTN

4T-JM205149/JM205110PK

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 diameter50 mm
D - External diameter90 mm
B - Bearing/Inner ring width28 mm
C - Outer ring width23 mm
T - Total width28 mm
a - Charge load application point20,6 mm
rs - Min fillet radius3 mm
r1s - Min fillet radius2,5 mm
Mass0,755 kg
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PRODUCT PERFORMANCE
C - Dynamic load118 kN
C0 - Static load141 kN
A2 - Rating life coefficient1
e - Coefficient0.33
Y0 - Static axial load coefficient1
Y2 - Upper axial load coefficient1.82
N lim - Oil lubrication limit speed5400 tr/min
N lim - Grease lubrication limit speed4100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR57 mm
db min - Min IR shoulder diameter62 mm
Da max - Max shoulder diameter OR85 mm
Db min - Min OR shoulder diameter80 mm
ra max - Max fillet radius3 mm
r1a - Max fillet radius2,5 mm
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