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25577-25520DC TDO (Two-Row Double-Outer Race) (Imperial)

25577-25520DC TDO (Two-Row Double-Outer Race) (Imperial)

The 25577-25520DC is a double-row tapered roller bearing with a 1.688-inch bore and 3.265-inch outer diameter, built from sturdy chrome steel. It handles combined loads well, with a dynamic radial load capacity of 35400 lbf and a two-row dynamic radial rating of 9180 lbf.

Its open design allows for easy lubrication, and the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 25500 series, featuring standard cups and a standard radial clearance. It’s compliant with RoHS and REACH standards for safe and reliable use.

Ideal for industrial machinery or automotive applications where combined loads are common. Weighing 2.92 lb, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number 25577-25520DC
  • Brand TFL
  • Size 1.688" x 3.265" x 1"
  • Bore Dia 1.688"
  • 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 2.17"
  • 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 25577
  • 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 2.92 lb

Features

Performance Features of 25577-25520DC Bearing

25577-25520DC Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 35,400 lbf, ensuring reliability in demanding applications.
The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.

How Is 25577-25520DC Bearing Engineered for Reliability?

25577-25520DC Bearing features a steel cage that maintains roller alignment, improving operational stability.
With a temperature range of -30° to 110°C, it performs consistently in varied environments.
The standard radial clearance option ensures smooth operation, while C3/C4/C5 variants cater to specific needs.

Built for Durability: 25577-25520DC Bearing

25577-25520DC Bearing’s double-row construction handles both radial and thrust loads efficiently.
Its chrome steel components resist wear, extending service life even under heavy use.
The open design allows for easy lubrication, reducing maintenance requirements.

Steel vs Ceramic Bearings: Strengths of 25577-25520DC Bearing

25577-25520DC Bearing uses chrome steel for its rollers and rings, balancing strength and cost-effectiveness.
The steel cage ensures reliable performance, making it suitable for industrial applications.
With a dynamic radial rating of 9,180 lbf for two rows, it excels in heavy-load scenarios.

Application

Industrial Uses of 25577-25520DC Bearing
25577-25520DC Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in tough working conditions.

In automotive applications, 25577-25520DC Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many American and British vehicle models.

For industrial automation, 25577-25520DC Bearing is ideal for robotic arms and conveyor systems, where precision and load capacity are key. The open seal design allows for easy lubrication, extending its service life.

Where Is 25577-25520DC Bearing Used?
You’ll often find 25577-25520DC Bearing in agricultural machinery, like tractors and harvesters, where it handles heavy loads and rough terrain. Its tapered roller design ensures smooth operation even under stress.

In manufacturing plants, 25577-25520DC Bearing is used in gearboxes and pulleys, thanks to its ability to manage both radial and axial forces. The standard radial clearance offers flexibility for different applications.

Built for Heavy-Duty Use: 25577-25520DC Bearing
25577-25520DC Bearing excels in forestry equipment, such as log splitters and sawmills, where its robust construction withstands intense vibrations and shocks. The steel cage adds extra strength for long-term use.

For material handling systems, 25577-25520DC Bearing ensures smooth operation in cranes and forklifts. Its ABEC-1 rating provides a good balance of precision and affordability for industrial needs.

Automotive vs Aerospace: Applications of 25577-25520DC Bearing
In automotive systems, 25577-25520DC Bearing is trusted for drivetrain components, offering reliability under high torque. Its inch measurements simplify integration into existing designs.

For aerospace ground support equipment, 25577-25520DC Bearing handles heavy loads in tow tractors and cargo loaders. The temperature range suits both indoor and outdoor use.

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