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Single row tapered roller bearings

4T-2789 - NTN

4T-2789

Mounted cone, 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 diameter39,688 mm
B - Bearing/Inner ring width25,654 mm
d1 - External diameter inner ring55 mm
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PRODUCT PERFORMANCE
C - Dynamic load81 kN
C0 - Static load90,5 kN
A2 - Rating life coefficient1
e - Coefficient0.3
Y0 - Static axial load coefficient1.09
Y2 - Upper axial load coefficient1.98
ABUTMENT
da max - Max shoulder diameter IR45 mm
db min - Min IR shoulder diameter52 mm
ra max - Max fillet radius3,5 mm
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