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TS (Single Row Tapered Roller Bearings) (Imperial) 557A-552A

TS (Single Row Tapered Roller Bearings) (Imperial) 557A-552A

The 557A-552A is a single-row tapered roller bearing with a 2.375″ bore and 4.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 42900 lbf radially and 6590 lbf thrust, making it versatile for heavy-duty use.

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

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

Weighing 4.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments. The standard radial clearance ensures easy installation and reliable performance.

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Product Parameters

  • Part Number 557A-552A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.375" x 4.875" x 1.5"
  • Bore Dia 2.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.444"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.1875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.5"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.310"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.72"
  • Cone Backface Backing Diameter 3.31"
  • Cup Frontface Backing Diameter 4.60"
  • Cup Backface Backing Diameter 4.29"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.07"
  • Effective Center Location -0.37"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 557A
  • Cup Part Number 552A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 555
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 42900 lbf
  • Static Radial Load 55700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 11100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 6590 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 4.5 lb

Features

Performance Features of 557A-552A Bearing

557A-552A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 42,900 lbf, making it suitable for heavy-duty 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.

557A-552A Bearing requires lubrication, ensuring smooth operation and reduced wear over time.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 557A-552A Bearing
557A-552A 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 in demanding environments.

In automotive applications, 557A-552A Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 557A-552A Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The steel cage adds strength, making it suitable for continuous operation.

What Makes 557A-552A Bearing a Preferred Choice?
557A-552A Bearing is often chosen for agricultural machinery due to its ability to withstand harsh conditions like dust and moisture. The standard radial clearance offers flexibility in various setups.

In mining equipment, 557A-552A Bearing’s high dynamic load capacity ensures smooth operation even under extreme stress. Its ABEC-1 rating provides a balance of precision and cost-effectiveness for industrial use.

Built for Heavy-Duty Use: 557A-552A Bearing
557A-552A Bearing excels in forestry machinery, where its tapered rollers manage uneven loads from heavy logs. The chrome steel rollers resist wear, reducing maintenance needs.

For railway applications, 557A-552A Bearing’s robust design handles the constant vibrations and shocks of train axles. The inch measurements simplify replacements in older systems.

Automotive vs Aerospace: Applications of 557A-552A Bearing
In automotive drivetrains, 557A-552A Bearing offers reliable performance for gearboxes and axles. Its combined load capacity suits the dynamic demands of road vehicles.

For aerospace ground equipment, 557A-552A Bearing’s temperature range (-30° to 110°C) ensures functionality in diverse climates. The steel cage provides stability for precision handling.

Q&A

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