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4T-JM718149/JM718110PK - NTN

4T-JM718149/JM718110PK

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.

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Technical datasheet

KitThis kit contains the following reference(s) - 4T-JM718110PK - 4T-JM718149PK
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Specs

PRODUCT DEFINITION

d - Internal diameter 90 mm
D - External diameter 140 mm
B - Bearing/Inner ring width 34 mm
C - Outer ring width 27 mm
T - Total width 35 mm
a - Charge load application point 33 mm
rs - Min fillet radius 3 mm
r1s - Min fillet radius 2,5 mm
Mass 2,14 kg
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 210 kN
C0 - Static load 279 kN
A2 - Rating life coefficient 1
e - Coefficient 0.44
Y0 - Static axial load coefficient 0.74
Y2 - Upper axial load coefficient 1.35
Nlim - Oil lubrication limit speed 3200 tr/min
Nlim - Grease lubrication limit speed 2400 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,442 Hz
BSF - Characteristic rolling element frequency 8,185 Hz
BPFO - Characteristic outer ring frequency 9,734 Hz
BPFI - Characteristic inner ring frequency 12,266 Hz

ABUTMENT

da max - Max shoulder diameter IR 99 mm
db min - Min IR shoulder diameter 105 mm
Da max - Max shoulder diameter OR 139 mm
Db min - Min OR shoulder diameter 131 mm
ra max - Max fillet radius 3 mm
r1a - Max fillet radius 2,5 mm
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