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25520 Inch Tapered Roller Bearings
25520 Inch Tapered Roller Bearings
25520 Inch Tapered Roller Bearings
Diagram of DSBR Inch Tapered Roller Bearings
Diagram of DSBR Inch Tapered Roller Bearings

25590/25520 Inch Tapered Roller Bearings

The 25590/25520 tapered roller bearing is a heavy-duty inch-series model widely used in trucks, trailers, and agricultural equipment. It provides strong support for both axial and radial loads, ensuring long-lasting durability in demanding working conditions. Built from high-grade steel with precision machining, this bearing minimizes friction, enhances efficiency, and extends service life. Its separable cup and cone design facilitates quick maintenance and reduces downtime. DSBR’s strict manufacturing quality control ensures consistency, making it a trusted choice for OEMs and aftermarket distributors worldwide.

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Technical Specification Technical Specification

Technical Specification of 25590/25520 Inch Tapered Roller Bearings

Specifications
Series25500
Cone Part Number25590
Cup Part Number25520
Design UnitInch
Cage MaterialStamped Steel
Dimensions
d - Bore1.7960 in
45.618 mm
D - Cup Outer Diameter3.2650 in
82.931 mm
B - Cone Width1.0000 in
25.400 mm
C - Cup Width0.7500 in
19.050 mm
T - Bearing Width0.9375 in
23.813 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius10.14 in
3.600 mm
r - Cup Backface "To Clear" Radius20.030 in
0.76 mm
da - Cone Frontface Backing Diameter2.01 in
51 mm
db - Cone Backface Backing Diameter2.28 in
58 mm
Da - Cup Frontface Backing Diameter3.05 in
77.00 mm
Db - Cup Backface Backing Diameter2.91 in
73.91 mm
Ab - Cage-Cone Frontface Clearance0.06 in
1.5 mm
Aa - Cage-Cone Backface Clearance0.01 in
0.3 mm
a - Effective Center Location3-0.25 in
-6.4 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)45270 lbf
23500 N
C1 - Dynamic Radial Rating (1 million revolutions)520300 lbf
90500 N
C0 - Static Radial Rating24900 lbf
111000 N
Ca90- Dynamic Thrust Rating (90 million revolutions)63020 lbf
13500 N
Factors
K - Factor71.74
e - ISO Factor80.33
Y - ISO Factor91.79
G1 - Heat Generation Factor (Roller-Raceway)35.2
G2 - Heat Generation Factor (Rib-Roller End)14.3
Cg - Geometry Factor100.0801


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