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

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

The 25877-25821 is a single-row tapered roller bearing with a 1.375″ bore and 2.875″ outer diameter, crafted from durable 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 easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing just 1 lb, it’s a robust yet manageable choice. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 25877-25821
  • 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 0.06"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.59"
  • Cone Backface Backing Diameter 1.69"
  • 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 25877
  • 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

Performance Features of 25877-25821 Bearing

25877-25821 Bearing is crafted from chrome steel for both rings and rollers, ensuring strength and durability.
Its dynamic radial load capacity reaches 19,100 lbf, making it suitable for heavy-duty applications.

The tapered roller design allows it to handle combined loads efficiently.
With a standard radial clearance, it offers reliable performance in various conditions.

25877-25821 Bearing operates within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing wear and extending service life.

The open seal design simplifies maintenance while ensuring proper lubrication.
This bearing is interchangeable with Timken models, providing flexibility for replacements.

Application

Industrial Uses of 25877-25821 Bearing
25877-25821 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.

Where Is 25877-25821 Bearing Used?
In automotive applications, 25877-25821 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.

Built for Heavy-Duty Use: 25877-25821 Bearing
25877-25821 Bearing works efficiently in conveyor systems, where its open design allows for easy lubrication and maintenance. The steel cage adds strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 25877-25821 Bearing
25877-25821 Bearing is versatile enough for both automotive drivetrains and aerospace landing gear systems. Its standard radial clearance ensures smooth performance across different load conditions.

Perfect Fit for Automation: 25877-25821 Bearing
25877-25821 Bearing supports robotic arms in automated production lines, where precision and load capacity are key. The tapered rollers reduce friction, enhancing efficiency in repetitive tasks.

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