25581-25520DC TDO (Two-Row Double-Outer Race) (Imperial)

The 25581-25520DC is a double-row tapered roller bearing with a 1.75″ bore and 3.265″ outer diameter, built from sturdy chrome steel. It handles combined loads well, with a dynamic radial capacity of 35400 lbf and smooth operation up to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The double-row construction provides stability, making it suitable for high-load applications.

This bearing is ideal for industrial machinery or vehicle axles where both radial and thrust loads are present. It meets RoHS and REACH standards for safe use.

Weighing 2.85 lb, it’s a robust choice for demanding environments. Available in standard radial clearance, with options for C3, C4, or C5 fits if needed.

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Description

Features

Application

Q&A

Product Parameters

Part Number 25581-25520DC
Brand TFL
Size 1.75" x 3.265" x 1"
Bore Dia 1.75"
Bore Dia Tolerance +0.005" to 0
Outer Dia 3.265"
Outer Dia Tolerance +0.001" to 0
Double Cup Width 1.875"
Double Cup Width Tolerance +0.003" to -0.01
Cone Width 1"
Cone Width Tolerance +0.002" to -0.01
Bearing Width Across Cups 2.25"
Bearing Width Across Cups Tolerance +0.008" to 0
Cup Backface ToClear Radius 0.03"
Cone Backface Backing Diameter 2.01"
Cup Frontface Backing Diameter 3.05"
Cage Cone Backface Clearance 0.01"
Dynamic Radial Load 35400 lbf
System of Measurement Inch
Type Bearing
Cone Part Number 25581
Cup Part Number 25520DC
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Double Row
Seal Type Open
Cups Type Standard
Series 25500
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Rating(One Row 90 Million Revolutions) 5270 lbf
Dynamic Thrust Rating(90 Million Revolutions) 3020 lbf
Dynamic Radial Rating(Two Row 90 Million Revolutions) 9180 lbf
Lubrication Required
Temperature Range -30° to 110 °C
ABEC Rating ABEC-1
Radial Clearance Standard (Available in C3/C4/C5)
RoHS Compliant
REACH Compliant
Weight 2.85 lb

Features

How Is 25581-25520DC Bearing Engineered for Reliability?

25581-25520DC Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 35,400 lbf.
The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Built for Durability: 25581-25520DC Bearing

25581-25520DC Bearing is designed with precision tolerances, ensuring smooth operation under heavy loads.
Its double-row construction enhances load distribution, improving overall performance.
The chrome steel rollers and rings resist wear, making it suitable for demanding applications.
With standard radial clearance options, it offers flexibility for different operational needs.

What Makes 25581-25520DC Bearing Suitable for High-Temperature Applications?

25581-25520DC Bearing operates effectively in temperatures ranging from -30° to 110°C.
Its chrome steel components maintain structural integrity even under thermal stress.
The open design allows for easy lubrication, ensuring consistent performance.
With a dynamic radial rating of 9,180 lbf for two rows, it handles heavy loads with ease.

Structural Advantages of 25581-25520DC Bearing

25581-25520DC Bearing’s double-row tapered roller design provides excellent load-carrying capacity.
The precision-engineered steel cage ensures smooth roller movement, reducing friction.
Its chrome steel construction offers high resistance to wear and fatigue.
With standard and C3/C4/C5 radial clearance options, it adapts to various applications.

Application

Industrial Uses of 25581-25520DC Bearing
The 25581-25520DC Bearing is commonly used in heavy machinery, such as construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

Where Is 25581-25520DC Bearing Used?
You’ll often find the 25581-25520DC Bearing in industrial gearboxes and wheel hubs, where its tapered roller design provides smooth operation under heavy loads.
The inch sizing makes it compatible with a variety of North American machinery, simplifying replacements and upgrades.

Built for Heavy-Duty Use: 25581-25520DC Bearing
The 25581-25520DC Bearing excels in applications like mining equipment and forestry machinery, where its robust construction withstands harsh conditions.
Its open design allows for easy lubrication, ensuring consistent performance even in high-stress scenarios.

Automotive vs Aerospace: Applications of 25581-25520DC Bearing
In automotive systems, the 25581-25520DC Bearing supports components like differentials and axles, offering reliable performance under combined loads.
While not typically used in aerospace, its precision and durability make it suitable for other high-performance industries.

Essential Roles of 25581-25520DC Bearing
The 25581-25520DC Bearing plays a key role in conveyor systems, where its ability to handle both radial and thrust loads keeps operations running smoothly.
Its standard radial clearance options provide flexibility for various industrial applications.