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TS (Single Row Tapered Roller Bearings) (Imperial) 25877A-25821

TS (Single Row Tapered Roller Bearings) (Imperial) 25877A-25821

The 25877A-25821 is a single row tapered roller bearing with a 1.375″ bore and 2.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 19100 lbf radially and 2460 lbf 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 use in gearboxes, axles, or industrial machinery where combined loads are present.

Weighing just 1 lb, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial environments.

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Product Parameters

  • Part Number 25877A-25821
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 2.875" x 0.9375"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 2.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.9688"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.65"
  • Cone Backface Backing Diameter 1.67"
  • Cup Frontface Backing Diameter 2.72"
  • Cup Backface Backing Diameter 2.56"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.02"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 25877A
  • Cup Part Number 25821
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 25800
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 19100 lbf
  • Static Radial Load 21900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 4960 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2460 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 lb

Features

How Is 25877A-25821 Bearing Engineered for Reliability?

25877A-25821 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 19100 lbf, ensuring dependable performance in tough conditions.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

Application

Industrial Uses of 25877A-25821 Bearing
25877A-25821 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 even in demanding environments.

In automotive applications, 25877A-25821 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, 25877A-25821 Bearing offers smooth operation with its standard radial clearance. The open design allows for easy lubrication, extending its service life in continuous-use scenarios.

Where Is 25877A-25821 Bearing Used?
25877A-25821 Bearing can be found in agricultural machinery, supporting components like gearboxes and PTO shafts. Its robust design handles the high loads typical in farming equipment.

In mining operations, 25877A-25821 Bearing is used in crushers and screens, where its tapered rollers manage both radial and thrust loads. The steel cage adds extra strength for these tough applications.

Built for Heavy-Duty Use: 25877A-25821 Bearing
25877A-25821 Bearing is ideal for forestry equipment, such as log splitters and sawmills, where its combined load capacity is essential. The ABEC-1 rating ensures consistent performance under rough conditions.

For material handling systems, 25877A-25821 Bearing provides reliable support in forklifts and cranes. Its standard radial clearance allows for smooth rotation even under heavy loads.

Automotive vs Aerospace: Applications of 25877A-25821 Bearing
In automotive settings, 25877A-25821 Bearing is often used in truck axles, where its durability and load capacity are key. The inch measurements make it compatible with many US-made vehicles.

For aerospace ground equipment, 25877A-25821 Bearing supports components like landing gear test rigs. Its temperature range of -30° to 110°C ensures performance in various climates.

Q&A

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