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TS (Single Row Tapered Roller Bearings) (Imperial) 25578-25526

TS (Single Row Tapered Roller Bearings) (Imperial) 25578-25526

The 25578-25526 is a single-row tapered roller bearing with a 1.6875″ bore and 3.3465″ 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 1.4 lb, it offers a balance of strength and manageable size. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 25578-25526
  • Brand TFL
  • Interchangeable Timken
  • Size 1.6875" x 3.3465" x 0.9376"
  • Bore Dia 1.6875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.3465"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.9376"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.090"
  • Cone Frontface Backing Diameter 1.95"
  • Cone Backface Backing Diameter 2.09"
  • Cup Frontface Backing Diameter 3.11"
  • Cup Backface Backing Diameter 2.91"
  • 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 25578
  • Cup Part Number 25526
  • 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 1.400 lb

Features

Built for Reliability: 25578-25526 Bearing

25578-25526 Bearing features chrome steel rings and rollers, providing strong resistance to combined loads.
Its dynamic radial load capacity reaches 20,300 lbf, ensuring dependable 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.

25578-25526 Bearing’s standard radial clearance offers flexibility for different installation needs.
Its ABEC-1 rating ensures consistent precision for reliable operation.

Application

Industrial Uses of 25578-25526 Bearing
25578-25526 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 in demanding environments.

In automotive applications, 25578-25526 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 25578-25526 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability during continuous operation.

Where Is 25578-25526 Bearing Used?
25578-25526 Bearing is often found in agricultural machinery, supporting components like gearboxes and PTO shafts. Its robust design withstands dirt and debris common in farming environments.

In mining equipment, 25578-25526 Bearing’s ability to handle heavy radial loads makes it ideal for crushers and screens. The standard radial clearance ensures smooth operation even under stress.

Built for Heavy-Duty Use: 25578-25526 Bearing
25578-25526 Bearing excels in forestry equipment, where its tapered rollers manage uneven loads from log handling. The chrome steel rollers resist wear in abrasive conditions.

For railway applications, 25578-25526 Bearing provides reliable performance in axle boxes, ensuring smooth travel under heavy loads. Its ABEC-1 rating balances precision and cost-effectiveness.

Automotive vs Aerospace: Applications of 25578-25526 Bearing
In automotive drivetrains, 25578-25526 Bearing handles high torque and variable speeds with ease. The inch measurements simplify replacements in older vehicle models.

For industrial pumps, 25578-25526 Bearing’s combined load capacity ensures efficient fluid transfer. The open design allows for regular maintenance, reducing downtime.

Q&A

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