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Single row tapered roller bearings

30219U - NTN

30219U

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 diameter95 mm
D - External diameter170 mm
B - Bearing/Inner ring width32 mm
C - Outer ring width27 mm
T - Total width34,5 mm
d1 - External diameter inner ring128 mm
a - Charge load application point34 mm
rs - Min fillet radius3 mm
r1s - Min fillet radius2,5 mm
Mass3,12 kg
ISO 355 referenceT3FB095
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PRODUCT PERFORMANCE
C - Dynamic load250 kN
C0 - Static load290 kN
Cu - Fatigue limit load32,5 kN
A2 - Rating life coefficient1
e - Coefficient0.42
Y0 - Static axial load coefficient0.79
Y2 - Upper axial load coefficient1.43
N lim - Oil lubrication limit speed2800 tr/min
N lim - Grease lubrication limit speed2100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR110 mm
db min - Min IR shoulder diameter109 mm
Da min - Min shoulder diameter OR149 mm
Da max - Max shoulder diameter OR158 mm
Db min - Min OR shoulder diameter159 mm
Ca - Min clearance5 mm
Cb - Min clearance7,5 mm
ra max - Max fillet radius2,5 mm
r1a - Max fillet radius2 mm
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