+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 5578-5521

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

The 5578-5521 is a single-row tapered roller bearing with a 2.125″ bore and 5.1181″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 53,200 lbf radially and 8,460 lbf thrust, making it a robust choice for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, suitable for various industrial environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in gearboxes, axles, or machinery where combined loads are common.

Weighing 6.7 lb, it’s built to last while meeting RoHS and REACH standards for safe and compliant use. The standard radial clearance ensures easy installation and maintenance.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 5578-5521
  • 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 5578
  • 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 53200 lbf
  • Static Radial Load 73500 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 13800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 8460 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 5578-5521 Bearing

5578-5521 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 53,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 5578-5521 Bearing Support Combined Loads?

5578-5521 Bearing’s tapered roller design efficiently handles both radial and thrust loads.
The chrome steel construction provides excellent strength, supporting static radial loads up to 73,500 lbf.
Its standard radial clearance allows for smooth operation in diverse applications.
The open design simplifies lubrication, ensuring consistent performance over time.

Engineered for Durability: 5578-5521 Bearing

5578-5521 Bearing features a single-row construction, optimised for reliability in demanding environments.
The precise cone and cup dimensions ensure proper fit and alignment during installation.
With an ABEC-1 rating, it balances performance and cost-effectiveness.
Its robust design minimises maintenance needs, reducing operational downtime.

Steel vs Chrome Steel Bearings: Strengths of 5578-5521 Bearing

5578-5521 Bearing combines chrome steel rings and rollers with a steel cage for balanced performance.
This material mix provides excellent load capacity while maintaining cost efficiency.
The bearing’s standard lubrication requirement ensures easy maintenance.
Its wide temperature range makes it versatile for various industrial applications.

Application

Industrial Uses of 5578-5521 Bearing
5578-5521 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.

In automotive applications, 5578-5521 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for American-made vehicles.

For industrial conveyor systems, 5578-5521 Bearing’s open design allows for easy lubrication, extending its service life in continuous operation. The steel cage adds extra strength to withstand high-speed rotations.

Where Is 5578-5521 Bearing Used?
5578-5521 Bearing finds its place in agricultural machinery, such as tractors and harvesters, where its robust design copes with dusty and rough conditions. The standard radial clearance ensures smooth operation.

In mining equipment, 5578-5521 Bearing’s high dynamic load capacity makes it suitable for crushers and screens. Its temperature range allows it to perform reliably in both hot and cold environments.

Built for Heavy-Duty Use: 5578-5521 Bearing
5578-5521 Bearing is ideal for gearboxes in industrial settings, where its tapered rollers distribute loads evenly. The ABEC-1 rating ensures consistent performance without unnecessary precision costs.

For railway applications, 5578-5521 Bearing’s durability and ease of maintenance make it a practical choice for axle boxes. The steel cage and chrome steel rollers provide long-lasting service.

Automotive vs Aerospace: Applications of 5578-5521 Bearing
In automotive systems, 5578-5521 Bearing is often used in drivetrains, where its combined load capacity is essential. The imperial measurements align with standard automotive parts.

For aerospace ground equipment, 5578-5521 Bearing’s reliability and temperature tolerance make it suitable for tow tractors and loaders. Its weight is balanced for ground support use.

Q&A

SEND INQUIRY