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557-S-552D TDO (Two-Row Double-Outer Race) (Imperial)

557-S-552D TDO (Two-Row Double-Outer Race) (Imperial)

The 557-S-552D is a double-row tapered roller bearing with a 2.125″ bore and 4.875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 88500 lbf and is designed for long-lasting performance in tough conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing can withstand temperatures from -30°C to 110°C, making it versatile for various environments.

This model is part of the 555 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like industrial gearboxes or large machinery where both radial and thrust loads are present.

Weighing 10.03 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for engineers and maintenance teams.

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Product Parameters

  • Part Number 557-S-552D
  • Brand TFL
  • Size 2.125" x 4.875" x 1.444"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.875"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.5"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.444"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.1249"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.06"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 4.56"
  • Cage Cone Backface Clearance 0.07"
  • Dynamic Radial Load 88500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 557-S
  • Cup Part Number 552D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 555
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 13200 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 7810 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 22900 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 10.03 lb

Features

How Does 557-S-552D Bearing Handle Combined Loads?

557-S-552D Bearing features a double-row tapered roller design, providing strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 88,500 lbf, ensuring reliable performance in demanding applications.
The chrome steel construction enhances durability, while the steel cage maintains roller alignment for smooth operation.
With a temperature range of -30° to 110°C, it performs well in various environments.

What Makes 557-S-552D Bearing Suitable for Heavy-Duty Applications?

557-S-552D Bearing is built with precision tolerances, offering consistent performance under heavy combined loads.
The double-row design distributes stress evenly, extending the bearing’s service life.
Chrome steel rollers and rings provide excellent wear resistance, reducing maintenance needs.
Its standard radial clearance ensures reliable operation in most industrial settings.

Engineered for Reliability: 557-S-552D Bearing

557-S-552D Bearing’s tapered roller design efficiently handles both radial and thrust loads.
The steel cage keeps rollers in place, minimising friction and wear.
With a dynamic radial rating of 22,900 lbf for two rows, it delivers robust performance.
Its wide temperature range makes it versatile for various operating conditions.

Application

Industrial Uses of 557-S-552D Bearing
557-S-552D Bearing is commonly used in heavy machinery, such as construction equipment and mining rigs, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in harsh working conditions.

Where Is 557-S-552D Bearing Used?
You’ll often find 557-S-552D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides stability under heavy loads. The inch sizing makes it a popular choice for North American equipment manufacturers.

Built for Heavy-Duty Use: 557-S-552D Bearing
557-S-552D Bearing excels in industrial gearboxes, offering reliable performance even under continuous operation. Its open design allows for easy lubrication, extending service life in demanding applications.

Automotive vs Aerospace: Applications of 557-S-552D Bearing
In automotive systems, 557-S-552D Bearing supports wheel hubs and drivetrains, while in aerospace, it’s used in landing gear mechanisms. The ABEC-1 rating ensures consistent precision across both industries.

Essential Roles of 557-S-552D Bearing
557-S-552D Bearing is a go-to solution for conveyor systems in manufacturing plants, where its high dynamic radial load capacity keeps production lines running smoothly. The steel cage adds extra resilience against wear.

Q&A

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