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Single row tapered roller bearings

30312U - NTN

30312U

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 diameter60 mm
D - External diameter130 mm
B - Bearing/Inner ring width31 mm
C - Outer ring width26 mm
T - Total width33,5 mm
d1 - External diameter inner ring93 mm
a - Charge load application point26,5 mm
rs - Min fillet radius3 mm
r1s - Min fillet radius2,5 mm
Mass2,05 kg
ISO 355 referenceT2FB060
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PRODUCT PERFORMANCE
C - Dynamic load199 kN
C0 - Static load210 kN
Cu - Fatigue limit load25,6 kN
A2 - Rating life coefficient1
e - Coefficient0.35
Y0 - Static axial load coefficient0.96
Y2 - Upper axial load coefficient1.74
N lim - Oil lubrication limit speed4000 tr/min
N lim - Grease lubrication limit speed3000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR77 mm
db min - Min IR shoulder diameter74 mm
Da min - Min shoulder diameter OR112 mm
Da max - Max shoulder diameter OR118 mm
Db min - Min OR shoulder diameter120 mm
Ca - Min clearance4 mm
Cb - Min clearance7,5 mm
ra max - Max fillet radius2,5 mm
r1a - Max fillet radius2 mm
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OE Equivalents

ManufacturerReferenceMercedes000 981 89 05Mercedes002 981 02 05Mercedes006 981 65 05Scania1357711SAF4 200 00 15 00Ud Truck4021700Z0C

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