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25581 Single Cones (Imperial)
25581 Single Cones (Imperial)

25581 Single Cones (Imperial)

The 25581 single cone is an imperial-sized tapered roller bearing with a 1.75″ bore, designed for combined loads. Made from sturdy chrome steel, it handles dynamic radial loads up to 20300 lbf and operates in temperatures from -30°C to 110°C.

Its open design and steel cage ensure durability, while the standard radial clearance allows smooth performance. The bearing is part of the 25500 series and is interchangeable with Timken models.

With an ABEC-1 rating, it offers reliable precision for industrial use. Ideal for heavy-duty applications like gearboxes or wheel hubs where combined loads are common.

Compliant with RoHS and REACH standards, it’s a practical choice for replacements or new installations. The cone width of 1″ makes it compact yet robust for its size.

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Product Parameters

  • Part Number 25581
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number 25581-25518 , 25581-25519 , 25581-25520 , 25581-25521 , 25581-25522 , 25581-25523 , 25581-25524 , 25581-25526 , 25581-25527 , 25581-25528 , 25581-25530RB , 25581-25547RB
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Series 25500
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 1"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.02"
  • Cone Frontface Backing Diameter 1.97"
  • Cone Backface Backing Diameter 2.01"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.25"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 20300 lbf
  • Static Radial Load 24900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5270 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 35400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3020 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 9180 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

Built for Reliability: 25581 Bearing

25581 Bearing is crafted from chrome steel, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 20,300 lbf, ensuring dependable performance in tough conditions.

The steel cage maintains roller alignment, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

25581 Bearing’s standard radial clearance options provide flexibility for different applications.
Its ABEC-1 rating ensures consistent quality and precision.

Application

Industrial Uses of 25581 Bearing
25581 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 25581 Bearing Used?
You’ll often find 25581 Bearing in truck wheel hubs and axle systems, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a go-to choice for North American automotive applications.

Built for Heavy-Duty Use: 25581 Bearing
25581 Bearing excels in industrial fans and conveyor systems, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 25581 Bearing
In automotive settings, 25581 Bearing supports drivetrain components, while in aerospace, it’s used in auxiliary systems requiring precise load handling. Its temperature range suits both environments well.

Perfect Fit for Automation: 25581 Bearing
25581 Bearing works well in automated assembly lines, where its consistent performance keeps production smooth. The standard radial clearance ensures compatibility with various machinery setups.

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