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Single row tapered roller bearings

33018U - NTN

33018U

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 diameter90 mm
D - External diameter140 mm
B - Bearing/Inner ring width39 mm
C - Outer ring width32,5 mm
T - Total width39 mm
d1 - External diameter inner ring115,5 mm
a - Charge load application point28 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass2,22 kg
ISO 355 referenceT2CE090
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PRODUCT PERFORMANCE
C - Dynamic load238 kN
C0 - Static load360 kN
Cu - Fatigue limit load42 kN
A2 - Rating life coefficient1
e - Coefficient0.27
Y0 - Static axial load coefficient1.23
Y2 - Upper axial load coefficient2.23
N lim - Oil lubrication limit speed3300 tr/min
N lim - Grease lubrication limit speed2500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR100 mm
db min - Min IR shoulder diameter100 mm
Da min - Min shoulder diameter OR127 mm
Da max - Max shoulder diameter OR131,5 mm
Db min - Min OR shoulder diameter135 mm
Ca - Min clearance7 mm
Cb - Min clearance6,5 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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