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TS (Single Row Tapered Roller Bearings) (Imperial) 2578-2525

TS (Single Row Tapered Roller Bearings) (Imperial) 2578-2525

The 2578-2525 is a single-row tapered roller bearing with a 1.125″ bore and 2.8355″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 18800 lbf radially and 2280 lbf in thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. 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 use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing just 1.1 lb, it balances strength and portability. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 2578-2525
  • Brand TFL
  • Interchangeable Timken
  • Size 1.125" x 2.8355" x 0.9375"
  • Bore Dia 1.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 2.8355"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.9983"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.9375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.38"
  • Cone Backface Backing Diameter 1.54"
  • Cup Frontface Backing Diameter 2.60"
  • Cup Backface Backing Diameter 2.48"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.02"
  • Effective Center Location -0.34"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 2578
  • Cup Part Number 2525
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 2500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 18800 lbf
  • Static Radial Load 21200 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 4880 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2280 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 1.1 lb

Features

Performance Features of 2578-2525 Bearing

2578-2525 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 18,800 lbf, ensuring reliable performance in various applications.

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

2578-2525 Bearing requires lubrication, which helps maintain smooth operation over time.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 2578-2525 Bearing
2578-2525 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

What Makes 2578-2525 Bearing a Preferred Choice?
In automotive applications, 2578-2525 Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and reliable performance. Its open design allows for easy lubrication, extending service life.

Built for Heavy-Duty Use: 2578-2525 Bearing
For industrial conveyor systems, 2578-2525 Bearing offers smooth operation under high radial and thrust loads. The steel cage provides added strength, making it suitable for continuous use in demanding environments.

Automotive vs Aerospace: Applications of 2578-2525 Bearing
While 2578-2525 Bearing is popular in truck axles and drivetrains, its precision also makes it useful in aerospace landing gear components. The ABEC-1 rating ensures consistent performance across different industries.

Where Is 2578-2525 Bearing Used?
You’ll often find 2578-2525 Bearing in mining equipment, where its robust design handles extreme loads and vibrations. The standard radial clearance option makes it adaptable to various operational needs.

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