TS (Single Row Tapered Roller Bearings) (Imperial) 5578V-5521

The 5578V-5521 is a single-row tapered roller bearing with a 2.125″ bore and 5.1181″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 63000 lbf radially and 10000 lbf in thrust, making it versatile for heavy-duty use.

Its open design allows for easy lubrication, while the steel cage ensures reliable performance under stress. 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 industrial machinery, gearboxes, or automotive applications where robust load handling is needed.

Weighing 6.700 lb, it’s built to last while meeting RoHS and REACH standards for safety and compliance.

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Description

Features

Application

Q&A

Product Parameters

Part Number 5578V-5521
Brand TFL
Interchangeable Timken
Size 2.125" x 5.1181" x 1.7499"
Bore Dia 2.125"
Bore Dia Tolerance +0.005" to 0
Outer Dia 5.1181"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.723"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.4375"
Cup Width Tolerance +0.002" to -0.01
Width 1.7499"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 2.64"
Cone Backface Backing Diameter 2.87"
Cup Frontface Backing Diameter 4.67"
Cup Backface Backing Diameter 4.29"
Cage Cone Frontface Clearance 0.08"
Cage Cone Backface Clearance 0.07"
Effective Center Location -0.48"
System of Measurement Inch
Type Bearing
Cone Part Number 5578V
Cup Part Number 5521
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 5500
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 63000 lbf
Static Radial Load 73500 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 16300 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 10000 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 6.700 lb

Features

Performance Features of 5578V-5521 Bearing

5578V-5521 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 63,000 lbf, making it suitable for heavy-duty applications.

The single-row tapered roller design ensures effective load distribution, enhancing durability.
With a standard radial clearance, it provides reliable performance in various operating conditions.

5578V-5521 Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing friction and extending service life.

Designed for easy lubrication, 5578V-5521 Bearing simplifies maintenance routines.
Its ABEC-1 rating ensures consistent performance for precision applications.

Application

Industrial Uses of 5578V-5521 Bearing
5578V-5521 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, 5578V-5521 Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, 5578V-5521 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 5578V-5521 Bearing Used?
5578V-5521 Bearing finds its place in agricultural machinery, such as tractors and harvesters, where it manages heavy radial and thrust loads. Its robust design ensures minimal maintenance.

In mining equipment, 5578V-5521 Bearing’s ability to withstand harsh conditions makes it ideal for crushers and screens. The standard radial clearance offers flexibility for different operational needs.

Built for Heavy-Duty Use: 5578V-5521 Bearing
5578V-5521 Bearing excels in forestry machinery, handling the rigorous demands of log splitters and sawmills. Its tapered rollers distribute loads evenly, reducing wear.

The bearing’s compatibility with Timken models makes it a versatile option for repairs and upgrades. Its ABEC-1 rating ensures consistent performance in general industrial applications.

Automotive vs Aerospace: Applications of 5578V-5521 Bearing
In automotive settings, 5578V-5521 Bearing is trusted for axle systems, offering stability under heavy loads. Its inch measurements align with standard US manufacturing specs.

For aerospace ground support equipment, 5578V-5521 Bearing provides reliable performance in tow tractors and loaders. The temperature range suits both cold and moderate climates.