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TS (Single Row Tapered Roller Bearings) (Imperial) 39581-39521

TS (Single Row Tapered Roller Bearings) (Imperial) 39581-39521

The 39581-39521 is a single-row tapered roller bearing with a 2.25″ bore and 4.4375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 37500 lbf radially and 5650 lbf thrust, making it versatile for various 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, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing 3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable choice.

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Product Parameters

  • Part Number 39581-39521
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 4.4375" x 1.1876"
  • Bore Dia 2.25"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.310"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.6"
  • Cone Backface Backing Diameter 3.19"
  • Cup Frontface Backing Diameter 4.25"
  • Cup Backface Backing Diameter 4.06"
  • Cage Cone Frontface Clearance 0.13"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.26"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 39581
  • Cup Part Number 39521
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 39500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 37500 lbf
  • Static Radial Load 50300 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 9730 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5650 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 lb

Features

Performance Features of 39581-39521 Bearing

39581-39521 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 37,500 lbf, making it suitable for demanding industrial applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

How Does 39581-39521 Bearing Resist Wear?

39581-39521 Bearing’s chrome steel construction provides excellent wear resistance, even under heavy loads.
The tapered roller design distributes stress evenly, extending the bearing’s service life.
Its standard radial clearance ensures smooth operation, reducing maintenance needs.
The steel cage maintains roller positioning, preventing premature wear.

Engineered for Precision: 39581-39521 Bearing

39581-39521 Bearing features precise tolerances, ensuring accurate performance in industrial machinery.
The tapered roller design handles both radial and thrust loads efficiently.
With an ABEC-1 rating, it delivers consistent performance for general applications.
Its effective center location of -0.26″ optimises load distribution.

Application

Industrial Uses of 39581-39521 Bearing
39581-39521 Bearing is commonly used in heavy machinery like construction equipment and agricultural tractors, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 39581-39521 Bearing Used?
You’ll often find 39581-39521 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American-made vehicles, and the open design allows for easy lubrication.

Built for Heavy-Duty Use: 39581-39521 Bearing
39581-39521 Bearing excels in industrial gearboxes, where its high dynamic radial load capacity keeps operations smooth. The steel cage adds extra strength, making it reliable for long-term use.

Automotive vs Aerospace: Applications of 39581-39521 Bearing
In automotive settings, 39581-39521 Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary systems. The ABEC-1 rating ensures consistent performance without over-engineering for less critical applications.

Perfect Fit for Automation: 39581-39521 Bearing
39581-39521 Bearing works well in automated conveyor systems, where its tapered rollers manage varying loads. The standard radial clearance option makes it versatile for different speed requirements.

Q&A

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