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4T-JLM506849/JLM506810 - NTN

4T-JLM506849/JLM506810

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-JLM506849 - 4T-JLM506810
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Specs

PRODUCT DEFINITION

d - Internal diameter 55 mm
D - External diameter 90 mm
B - Bearing/Inner ring width 23 mm
C - Outer ring width 18,5 mm
T - Total width 23 mm
d1 - External diameter inner ring 72,5 mm
a - Charge load application point 20,2 mm
Mass 0,556 kg
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 86 kN
C0 - Static load 109 kN
Cu - Fatigue limit load 13,3 kN
A2 - Rating life coefficient 1
e - Coefficient 0.4
Y0 - Static axial load coefficient 0.82
Y2 - Upper axial load coefficient 1.49
Nlim - Oil lubrication limit speed 5300 tr/min
Nlim - Grease lubrication limit speed 3900 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,444 Hz
BSF - Characteristic rolling element frequency 8,503 Hz
BPFO - Characteristic outer ring frequency 9,766 Hz
BPFI - Characteristic inner ring frequency 12,234 Hz

ABUTMENT

da max - Max shoulder diameter IR 61 mm
db min - Min IR shoulder diameter 63 mm
Da max - Max shoulder diameter OR 82 mm
Db min - Min OR shoulder diameter 86 mm
ra max - Max fillet radius 1,5 mm
r1a - Max fillet radius 0,5 mm
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