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TS (Single Row Tapered Roller Bearings) (Imperial) 25581-25547RB

TS (Single Row Tapered Roller Bearings) (Imperial) 25581-25547RB

The 25581-25547RB is a single-row tapered roller bearing with a 1.75″ bore and 3.9368″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 20300 lbf radially and 3020 lbf in thrust, suitable for moderate-speed applications.

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

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for use in gearboxes, axles, or industrial equipment where combined loads are present.

Weighing 2.3 lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards, it’s a reliable option for various mechanical setups.

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Product Parameters

  • Part Number 25581-25547RB
  • Brand TFL
  • Interchangeable Timken
  • Size 1.75" x 3.9368" x 1.0001"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.9368"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.8125"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0001"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.02"
  • Cup Backface ToClear Radius 0.02"
  • Cone Frontface Backing Diameter 1.97"
  • Cone Backface Backing Diameter 2.01"
  • Cup Frontface Backing Diameter 3.85"
  • Cup Backface Backing Diameter 3.19"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.25"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 25581
  • Cup Part Number 25547RB
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 25500
  • Ring Material Chrome Steel
  • Roller 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 Thrust Rating(90 Million Revolutions)(Ca90) 3020 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 2.3 lb

Features

Performance Features of 25581-25547RB Bearing

25581-25547RB Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 20,300 lbf, ensuring reliable performance in demanding conditions.
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 various environments.

How Does 25581-25547RB Bearing Reduce Friction?

25581-25547RB Bearing’s tapered roller design minimises friction, allowing smooth operation under heavy loads.
The chrome steel construction enhances durability while maintaining efficient performance.
Its standard radial clearance ensures optimal fit and function in most applications.
Regular lubrication further reduces wear, prolonging the bearing’s service life.

Engineered for Precision: 25581-25547RB Bearing

25581-25547RB Bearing features precise dimensions, with bore and outer diameter tolerances tightly controlled.
Its effective center location of -0.25″ ensures accurate alignment in assemblies.
The ABEC-1 rating confirms its suitability for applications requiring reliable precision.
This bearing balances performance and durability in industrial settings.

Steel vs Ceramic Bearings: Strengths of 25581-25547RB Bearing

25581-25547RB Bearing uses chrome steel for both rings and rollers, providing excellent strength.
This material choice makes it more cost-effective than ceramic alternatives while maintaining good performance.
The steel construction handles high dynamic radial loads up to 20,300 lbf reliably.
It’s a practical choice for applications where durability and value are both important.

Application

Industrial Uses of 25581-25547RB Bearing
25581-25547RB Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

What Makes 25581-25547RB Bearing a Preferred Choice?
In automotive applications, 25581-25547RB Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and robust load capacity. The open design simplifies lubrication, extending service life.

Built for Heavy-Duty Use: 25581-25547RB Bearing
For industrial conveyors, 25581-25547RB Bearing’s standard radial clearance and ABEC-1 rating provide reliable performance under continuous operation. Its steel cage adds stability during high-load scenarios.

Automotive vs Aerospace: Applications of 25581-25547RB Bearing
While 25581-25547RB Bearing excels in truck axles due to its dynamic radial load capacity, it’s also suitable for aerospace ground support equipment. The temperature range ensures functionality in varied climates.

Where Is 25581-25547RB Bearing Used?
You’ll find 25581-25547RB Bearing in agricultural machinery like harvesters, where its tapered rollers manage uneven loads smoothly. The inch measurements make it compatible with older American-made equipment.

Q&A

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