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25570-25520D TDO (Two-Row Double-Outer Race) (Imperial)

25570-25520D TDO (Two-Row Double-Outer Race) (Imperial)

The 25570-25520D is a double-row tapered roller bearing with a 1.4375″ bore and 3.265″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 35400 lbf and suits moderate-speed applications.

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

This model features standard radial clearance and is ABEC-1 rated for reliable performance. Ideal for industrial machinery or automotive applications where combined loads are common.

Weighing 3.27 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 25570-25520D
  • Brand TFL
  • Size 1.4375" x 3.265" x 1"
  • Bore Dia 1.4375"
  • 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 25570
  • 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 3.270 lb

Features

How Does 25570-25520D Bearing Handle Combined Loads?

25570-25520D Bearing features a double-row tapered roller design, ideal for handling both radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 35,400 lbf.
The open seal type allows for easy lubrication, maintaining smooth operation in various conditions.
With a standard radial clearance, it offers reliable performance across a temperature range of -30° to 110°C.

Built for Reliability: 25570-25520D Bearing

25570-25520D Bearing is designed with precision-ground chrome steel rollers for consistent performance.
The double-row configuration enhances load distribution, reducing wear and extending service life.
Its ABEC-1 rating ensures dependable accuracy for industrial applications.
The standard radial clearance options provide flexibility for different operational needs.

Why Choose 25570-25520D Bearing for Heavy-Duty Applications?

25570-25520D Bearing’s tapered roller design efficiently manages combined loads in demanding environments.
The steel cage maintains roller alignment, ensuring smooth operation under high stress.
With a dynamic thrust rating of 3,020 lbf per row, it excels in heavy-duty machinery.
Its compliance with RoHS and REACH standards makes it a responsible choice for various industries.

Structural Advantages of 25570-25520D Bearing

25570-25520D Bearing’s double outer race construction enhances stability and load capacity.
The chrome steel rollers and rings resist wear, even under continuous heavy use.
Its standard cup type simplifies installation, reducing downtime during maintenance.
The bearing’s wide temperature range ensures performance in diverse operating conditions.

Application

Industrial Uses of 25570-25520D Bearing
25570-25520D 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 demanding environments.

In automotive applications, 25570-25520D Bearing supports wheel hubs and differential systems, providing reliable performance under varying load conditions. Its inch sizing makes it compatible with many North American vehicle models.

For industrial automation, 25570-25520D Bearing’s tapered roller design offers smooth operation in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life in high-use scenarios.

Where Is 25570-25520D Bearing Used?
25570-25520D Bearing finds its place in wind turbine gearboxes, where its ability to handle high dynamic loads is crucial. The steel cage adds stability, even in fluctuating temperatures.

You’ll also spot 25570-25520D Bearing in mining equipment, where its robust construction withstands harsh conditions. The standard radial clearance ensures consistent performance over time.

Built for Heavy-Duty Use: 25570-25520D Bearing
25570-25520D Bearing excels in railway applications, particularly in axle boxes where combined loads are common. Its ABEC-1 rating balances precision and cost-effectiveness for these uses.

The bearing’s tapered rollers distribute stress evenly, making it a solid choice for industrial pumps. Maintenance is straightforward thanks to its open design and easy lubrication access.

Automotive vs Aerospace: Applications of 25570-25520D Bearing
In trucks and buses, 25570-25520D Bearing handles wheel loads reliably, while its temperature range suits various climates. The inch measurements simplify replacements in older vehicle models.

Though not typically used in aerospace, this bearing’s load capacity makes it suitable for ground support equipment. Its steel components resist wear in frequent-use scenarios.

Q&A

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