TS (Single Row Tapered Roller Bearings) (Imperial) 2578-2520A

The 2578-2520A is a single-row tapered roller bearing with a 1.125″ bore and 2.615″ outer diameter, crafted from sturdy chrome steel. It handles combined loads, supporting up to 18800 lbf dynamically and 21200 lbf statically.

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 heavy-duty applications like automotive axles or industrial gearboxes where combined loads are common.

Weighing just 1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable option for various industrial uses.

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Description

Features

Application

Q&A

Product Parameters

Part Number 2578-2520A
Brand TFL
Interchangeable Timken
Size 1.125" x 2.615" x 1"
Bore Dia 1.125"
Bore Dia Tolerance +0.005" to 0
Outer Dia 2.615"
Outer Dia Tolerance +0.001" to 0
Cone Width 0.9983"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.8125"
Cup Width Tolerance +0.002" to -0.01
Width 1"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.09"
Cup Backface ToClear Radius 0.06"
Cone Frontface Backing Diameter 1.38"
Cone Backface Backing Diameter 1.54"
Cup Frontface Backing Diameter 2.46"
Cup Backface Backing Diameter 2.32"
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 2520A
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 lb

Features

Performance Features of 2578-2520A Bearing

2578-2520A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 18,800 lbf, making it suitable for heavy-duty applications.

The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

2578-2520A Bearing’s standard radial clearance allows for smooth operation under different conditions.
Its ABEC-1 rating ensures consistent performance for precision tasks.

Application

Industrial Uses of 2578-2520A Bearing
2578-2520A 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 demanding environments.

What Makes 2578-2520A Bearing a Preferred Choice?
In automotive applications, 2578-2520A Bearing fits well in wheel hubs and differential systems, thanks to its precise imperial sizing. The open design allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 2578-2520A Bearing
For industrial conveyor systems, 2578-2520A Bearing provides reliable performance under continuous radial and thrust loads. Its steel cage enhances stability, making it suitable for high-stress operations.

Automotive vs Aerospace: Applications of 2578-2520A Bearing
While 2578-2520A Bearing excels in truck axles and heavy vehicles, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance across different industries.