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

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

The 555-S-552D is a two-row tapered roller bearing with a 2.25″ bore and 4.875″ outer diameter, built from sturdy chrome steel. It handles combined loads, supporting up to 88500 lbf radially and 7810 lbf in thrust.

Its double-row design provides extra stability, while the open seal allows for easy lubrication. The bearing operates smoothly in temperatures from -30°C to 110°C.

With standard radial clearance and ABEC-1 precision, it’s a reliable choice for heavy-duty applications. Ideal for industrial machinery or vehicle axles where durability and load capacity matter.

Weighing 9.68 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 555-S-552D
  • Brand TFL
  • Size 2.25" x 4.875" x 1.444"
  • Bore Dia 2.25"
  • 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 2.99"
  • 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 555-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 9.68 lb

Features

Why Choose 555-S-552D Bearing for Combined Loads?

555-S-552D Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 88,500 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides consistent performance across various applications.

How Is 555-S-552D Bearing Engineered for Reliability?

555-S-552D Bearing features a steel cage that keeps the rollers aligned, minimising friction and wear.
The chrome steel construction ensures durability, even under heavy combined loads.
Its double-row design enhances stability, making it suitable for high-stress environments.
With a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

Built for Durability: 555-S-552D Bearing

555-S-552D Bearing’s tapered roller design provides excellent load distribution, reducing stress on individual components.
The chrome steel materials resist wear, ensuring a long service life.
Its open seal type allows for easy lubrication, maintaining smooth operation.
With standard radial clearance options, it adapts to various operational needs.

Steel vs Ceramic Bearings: Strengths of 555-S-552D Bearing

555-S-552D Bearing uses chrome steel for both rings and rollers, offering a balance of strength and cost-effectiveness.
The steel cage ensures reliable roller alignment, even under heavy loads.
Its dynamic radial rating of 22,900 lbf for two rows highlights its robust performance.
The bearing’s design is optimised for combined loads, making it versatile for different applications.

Application

Industrial Uses of 555-S-552D Bearing
The 555-S-552D Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in tough working conditions.

In automotive applications, 555-S-552D Bearing supports axle systems and wheel hubs, providing reliable performance under high stress. The inch sizing makes it a good fit for vehicles designed to imperial measurements.

For industrial automation, 555-S-552D Bearing works well in conveyor systems and robotic arms, where its open design allows for easy lubrication. The standard radial clearance offers flexibility for various operational needs.

What Makes 555-S-552D Bearing a Preferred Choice?
This bearing’s tapered roller design is ideal for applications requiring precise load distribution, such as gearboxes and drivetrains. Its steel cage adds strength while maintaining smooth operation.

The 555-S-552D Bearing is also suitable for agricultural machinery, where its robust build withstands dust and debris. The ABEC-1 rating ensures consistent performance without over-engineering for general-purpose use.

Q&A

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