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31326XU - NTN

31326XU

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.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter130 mm
D - External diameter280 mm
B - Bearing/Inner ring width66 mm
C - Outer ring width44 mm
T - Total width72 mm
d1 - External diameter inner ring206 mm
a - Charge load application point87,5 mm
rs - Min fillet radius5 mm
r1s - Min fillet radius4 mm
Mass19 kg
ISO 355 referenceT7GB130
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PRODUCT PERFORMANCE
C - Dynamic load670 kN
C0 - Static load780 kN
Cu - Fatigue limit load77 kN
A2 - Rating life coefficient1
e - Coefficient0.83
Y0 - Static axial load coefficient0.4
Y2 - Upper axial load coefficient0.73
N lim - Oil lubrication limit speed1800 tr/min
N lim - Grease lubrication limit speed1400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR155,5 mm
db min - Min IR shoulder diameter152 mm
Da min - Min shoulder diameter OR214,5 mm
Da max - Max shoulder diameter OR262 mm
Db min - Min OR shoulder diameter263 mm
Ca - Min clearance9 mm
Cb - Min clearance28 mm
ra max - Max fillet radius4 mm
r1a - Max fillet radius3 mm
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