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HM803110 Inch Tapered Roller Bearings
HM803110 Inch Tapered Roller Bearings
HM803110 Inch Tapered Roller Bearings
Diagram of DSBR Inch Tapered Roller Bearings
Diagram of DSBR Inch Tapered Roller Bearings

HM803149/HM803110 Inch Tapered Roller Bearings

The HM803149/HM803110 tapered roller bearing is an inch-series bearing designed for automotive wheel hubs, gearboxes, and industrial machinery. Its high load-carrying capacity and precision-ground raceways ensure smooth operation and long service life. Manufactured from premium steel and processed with advanced heat treatment, it resists wear, deformation, and fatigue. The separable cone and cup design provides flexibility for maintenance and replacement. With DSBR’s world-class production capabilities and strict inspection procedures, this model guarantees consistent quality and performance, meeting both OEM and aftermarket requirements globally.

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Technical Specification Technical Specification

Technical Specification of HM803149/HM803110 Inch Tapered Roller Bearings

Specifications
SeriesHM803100
Cone Part NumberHM803149
Cup Part NumberHM803110
Design UnitInch
Cage MaterialStamped Steel
Dimensions
d - Bore1 3/4 in
44.45 mm
D - Cup Outer Diameter3 1/2 in
88.900 mm
B - Cone Width1.1563 in
29.370 mm
C - Cup Width0.9063 in
23.020 mm
T - Bearing Width1.1875 in
30.163 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius10.14 in
3.560 mm
r - Cup Backface "To Clear" Radius20.130 in
3.30 mm
da - Cone Frontface Backing Diameter2.1 in
53.4 mm
db - Cone Backface Backing Diameter2.44 in
62 mm
Da - Cup Frontface Backing Diameter3.39 in
85.10 mm
Db - Cup Backface Backing Diameter2.91 in
73.91 mm
Ab - Cage-Cone Frontface Clearance0.11 in
2.8 mm
Aa - Cage-Cone Backface Clearance0.04 in
1 mm
a - Effective Center Location3-0.17 in
-4.3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)46630 lbf
29500 N
C1 - Dynamic Radial Rating (1 million revolutions)525600 lbf
114000 N
C0 - Static Radial Rating32400 lbf
144000 N
Ca90- Dynamic Thrust Rating (90 million revolutions)66200 lbf
27600 N
Factors
K - Factor71.07
e - ISO Factor80.55
Y - ISO Factor91.1
G1 - Heat Generation Factor (Roller-Raceway)39.2
G2 - Heat Generation Factor (Rib-Roller End)10.6
Cg - Geometry Factor100.0974


Contact DSBR for More Information
Contact DSBR for More Information
2010
SINCE
9
PATENTS
120
EXPERT WORKERS
40
EXPORT COUNTRIES
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