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4T-32010X - NTN

4T-32010X

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

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Specs

PRODUCT DEFINITION

d - Internal diameter 50 mm
D - External diameter 80 mm
B - Bearing/Inner ring width 20 mm
C - Outer ring width 15,5 mm
T - Total width 20 mm
d1 - External diameter inner ring 65,5 mm
a - Charge load application point 17,5 mm
rs - Min fillet radius 1 mm
r1s - Min fillet radius 1 mm
Mass 0,373 kg
ISO 355 reference T3CC050
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 69,5 kN
C0 - Static load 88 kN
Cu - Fatigue limit load 10,7 kN
A2 - Rating life coefficient 1
e - Coefficient 0.42
Y0 - Static axial load coefficient 0.78
Y2 - Upper axial load coefficient 1.42
Nlim - Oil lubrication limit speed 5800 tr/min
Nlim - Grease lubrication limit speed 4400 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,446 Hz
BSF - Characteristic rolling element frequency 8,771 Hz
BPFO - Characteristic outer ring frequency 10,699 Hz
BPFI - Characteristic inner ring frequency 13,301 Hz

ABUTMENT

da max - Max shoulder diameter IR 56 mm
db min - Min IR shoulder diameter 55,5 mm
Da min - Min shoulder diameter OR 72 mm
Da max - Max shoulder diameter OR 74,5 mm
Db min - Min OR shoulder diameter 77 mm
Ca - Min clearance 4 mm
Cb - Min clearance 4,5 mm
ra max - Max fillet radius 1 mm
r1a - Max fillet radius 1 mm
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