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TS (Single Row Tapered Roller Bearings) (Imperial) 3581-3525

TS (Single Row Tapered Roller Bearings) (Imperial) 3581-3525

The 3581-3525 is a single-row tapered roller bearing with a 1.375″ bore and 3.4375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 25500 lbf radially and 3460 lbf in thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing just 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

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Product Parameters

  • Part Number 3581-3525
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.4375" x 1.1875"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.216"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.69"
  • Cone Backface Backing Diameter 1.95"
  • Cup Frontface Backing Diameter 3.23"
  • Cup Backface Backing Diameter 2.95"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.07"
  • Effective Center Location -0.4"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3581
  • Cup Part Number 3525
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 25500 lbf
  • Static Radial Load 30100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6610 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3460 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 lb

Features

Performance Features of 3581-3525 Bearing

3581-3525 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,500 lbf, ensuring reliable performance in various applications.

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

3581-3525 Bearing’s standard radial clearance allows for smooth operation under different conditions.
Its ABEC-1 rating ensures consistent precision for industrial use.

Application

Industrial Uses of 3581-3525 Bearing
3581-3525 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.
In automotive applications, 3581-3525 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a convenient choice for North American vehicle models.

Where Is 3581-3525 Bearing Used?
You’ll often find 3581-3525 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands dusty environments. The open seal type allows for easy lubrication, extending its service life.
For industrial gearboxes, 3581-3525 Bearing offers stable performance, thanks to its precise radial and thrust load handling. The steel cage adds extra strength, making it suitable for high-load scenarios.

Built for Heavy-Duty Use: 3581-3525 Bearing
3581-3525 Bearing excels in mining equipment, where its ability to handle both radial and axial loads is crucial. The standard radial clearance ensures smooth operation even under intense stress.
In conveyor systems, 3581-3525 Bearing’s tapered rollers reduce friction, improving efficiency. Its compatibility with Timken models makes it a versatile option for maintenance and replacements.

Automotive vs Aerospace: Applications of 3581-3525 Bearing
In automotive settings, 3581-3525 Bearing is ideal for drivetrain components, offering reliable performance under combined loads. The inch measurements align with many US-made vehicles.
For aerospace ground equipment, 3581-3525 Bearing provides the precision needed for load-bearing parts. Its temperature range suits various operational environments, from cold storage to heated hangars.

Q&A

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