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

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

The 25577-25520D is a two-row tapered roller bearing with a 1.688″ bore and 3.265″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 35400 lbf and is designed for long-lasting performance.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing works well in temperatures from -30°C to 110°C, making it versatile for various conditions.

This double-row construction provides extra stability, ideal for heavy-duty applications like truck axles or industrial gearboxes. It meets ABEC-1 standards for reliable precision.

Weighing 2.92 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH, it’s a safe choice for demanding environments.

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Product Parameters

  • Part Number 25577-25520D
  • 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 25520D
  • 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 25577-25520D Bearing

25577-25520D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 35,400 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances load distribution, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation in various industrial settings.

25577-25520D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open seal type allows for easy lubrication, maintaining optimal performance over time.

The steel cage keeps rollers aligned, ensuring stability even under high stress.
This bearing is ideal for applications requiring durability and precision.

Application

Industrial Uses of 25577-25520D Bearing
25577-25520D 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 effectively. The chrome steel construction ensures durability in tough working conditions.

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

For industrial conveyor systems, 25577-25520D Bearing’s tapered roller design offers smooth operation and long service life. The open seal type allows for easy lubrication, reducing maintenance downtime.

Where Is 25577-25520D Bearing Used?
25577-25520D Bearing is ideal for mining equipment, where its robust construction withstands high loads and harsh environments. The standard radial clearance ensures consistent performance over time.

In power transmission systems, 25577-25520D Bearing provides stability and reduces friction in gearboxes and driveshafts. Its steel cage enhances strength and longevity under continuous use.

Built for Heavy-Duty Use: 25577-25520D Bearing
25577-25520D Bearing excels in forestry machinery, handling the demanding conditions of logging and wood processing. The double-row configuration distributes loads evenly, reducing wear.

For railway applications, 25577-25520D Bearing ensures smooth operation in axle boxes and traction motors. Its temperature range suits both cold and moderate climates.

Automotive vs Aerospace: Applications of 25577-25520D Bearing
In automotive settings, 25577-25520D Bearing is often found in truck wheel ends, where its durability is crucial. The ABEC-1 rating balances precision and cost-effectiveness.

For aerospace ground equipment, 25577-25520D Bearing supports loading systems and maintenance tools. Its chrome steel rollers provide reliable performance in high-stress scenarios.

Q&A

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