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Single row tapered roller bearings

4T-HM88648/HM88610PX1 - NTN

4T-HM88648/HM88610PX1

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 diameter35,717 mm
D - External diameter72,233 mm
B - Bearing/Inner ring width25,4 mm
C - Outer ring width19,842 mm
T - Total width25,4 mm
d1 - External diameter inner ring56 mm
a - Charge load application point20,8 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius2,3 mm
Mass0,477 kg
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PRODUCT PERFORMANCE
C - Dynamic load65 kN
C0 - Static load84,5 kN
A2 - Rating life coefficient1
e - Coefficient0.55
Y0 - Static axial load coefficient0.6
Y2 - Upper axial load coefficient1.1
N lim - Oil lubrication limit speed7200 tr/min
N lim - Grease lubrication limit speed5400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR43 mm
db min - Min IR shoulder diameter52 mm
Da max - Max shoulder diameter OR60 mm
Db min - Min OR shoulder diameter69 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius2,3 mm
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