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

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

The 557-552A is a single-row tapered roller bearing with a 2.1654″ bore and 4.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 42900 lbf radially and 6590 lbf thrust-wise, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

Weighing 4.9 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 straightforward installation and maintenance.

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Product Parameters

  • Part Number 557-552A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.1654" x 4.875" x 1.5"
  • Bore Dia 2.1654"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.6"
  • Cone Backface Backing Diameter 2.83"
  • 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 557
  • 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 4.900 lb

Features

Performance Features of 557-552A Bearing

557-552A Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 42,900 lbf, ensuring reliable performance in heavy-duty applications.

The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

557-552A Bearing requires regular lubrication, which helps maintain smooth operation over time.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 557-552A Bearing
557-552A Bearing is commonly used in heavy machinery, such as construction equipment and mining rigs, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 557-552A Bearing fits well in truck wheel hubs and drivetrains, providing reliable performance under high radial and thrust loads. Its imperial sizing makes it a straightforward replacement for Timken equivalents.

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

Where Is 557-552A Bearing Used?
You’ll often find 557-552A Bearing in agricultural machinery, like tractors and harvesters, where its robust design copes with uneven loads. The standard radial clearance ensures smooth rotation even under stress.

In conveyor systems, 557-552A Bearing’s tapered rollers manage both radial and axial forces, reducing wear over time. Its compatibility with Timken parts simplifies maintenance and replacements.

Built for Heavy-Duty Use: 557-552A Bearing
557-552A Bearing excels in forestry equipment, such as log splitters, where its combined load capacity is crucial. The chrome steel rollers resist deformation under heavy use.

For railway applications, 557-552A Bearing’s ABEC-1 rating provides sufficient precision for freight car axles. The steel cage ensures stability during long-haul operations.

Automotive vs Aerospace: Applications of 557-552A Bearing
In automotive settings, 557-552A Bearing is ideal for heavy-duty trucks, handling rough terrain with ease. Its imperial measurements align with North American manufacturing standards.

While not typical for aerospace, 557-552A Bearing suits ground support equipment, like tow tractors, where reliability matters. The temperature range covers most operational conditions.

Q&A

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