TS (Single Row Tapered Roller Bearings) (Imperial) 25878-25820

The 25878-25820 is a single-row tapered roller bearing with a 1.375″ bore and 2.875″ outer diameter, made from sturdy chrome steel. It handles combined loads up to 19100 lbf radially and 2460 lbf thrust, suitable for demanding applications.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in heavy machinery, automotive systems, or industrial equipment where combined loads are common.

Weighing just 1 lb, it’s lightweight yet robust for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Description

Features

Application

Q&A

Product Parameters

Part Number 25878-25820
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 0.14"
Cup Backface ToClear Radius 0.090"
Cone Frontface Backing Diameter 1.59"
Cone Backface Backing Diameter 1.85"
Cup Frontface Backing Diameter 2.72"
Cup Backface Backing Diameter 2.52"
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 25878
Cup Part Number 25820
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 25878-25820 Bearing Engineered for Reliability?

25878-25820 Bearing features chrome steel rings and rollers, providing robust performance under combined loads.
Its dynamic radial load capacity reaches 19100 lbf, ensuring durability in demanding applications.
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.

Structural Advantages of 25878-25820 Bearing

25878-25820 Bearing’s tapered roller design efficiently handles both radial and thrust loads.
The chrome steel construction offers excellent resistance to wear and fatigue.
Precision-engineered dimensions ensure smooth operation and easy installation.
Its standard radial clearance options provide flexibility for different applications.

Why Choose 25878-25820 Bearing for Precision Tasks?

25878-25820 Bearing’s single row construction ensures consistent performance in precision applications.
The ABEC-1 rating guarantees reliable accuracy for industrial uses.
Chrome steel components enhance durability while maintaining smooth operation.
Its effective center location design improves load distribution and stability.

Application

Industrial Uses of 25878-25820 Bearing
25878-25820 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 in tough working conditions.

In automotive applications, 25878-25820 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial fans and pumps, 25878-25820 Bearing’s open design allows easy lubrication, extending service life in continuous operation. The standard radial clearance offers flexibility for different installation requirements.

Where Is 25878-25820 Bearing Used?
25878-25820 Bearing can be found in agricultural machinery, supporting components like gearboxes and PTO shafts. Its robust design handles the dust and vibrations typical in farm environments.

The bearing also works well in conveyor systems, where its tapered rollers manage both radial and axial loads smoothly. Steel cage construction adds to its longevity in high-duty cycles.

Built for Heavy-Duty Use: 25878-25820 Bearing
25878-25820 Bearing is ideal for mining equipment, where its high dynamic load capacity withstands extreme conditions. The ABEC-1 rating ensures consistent performance without over-engineering.

In material handling systems, this bearing’s effective center location helps maintain alignment under shifting loads. Its compatibility with Timken models simplifies maintenance and part sourcing.