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558A-552D TDO (Two-Row Double-Outer Race) (Imperial)

558A-552D TDO (Two-Row Double-Outer Race) (Imperial)

The 558A-552D is a two-row tapered roller bearing with a 2.375″ bore and 4.875″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads with a dynamic radial capacity of 74700 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its double-row design provides extra stability, while the open seal allows easy lubrication. The bearing comes with standard radial clearance but can also be ordered in C3, C4, or C5 options for specific needs.

This model is ideal for heavy-duty applications like truck axles or industrial gearboxes where high radial and thrust loads are common. Weighing 9.28 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 558A-552D
  • Brand TFL
  • Size 2.375" x 4.875" x 1.444"
  • Bore Dia 2.375"
  • 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 74700 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 558A
  • 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) 11100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 6590 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 19400 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 9.28 lb

Features

Performance Features of 558A-552D Bearing

558A-552D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 74,700 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains roller alignment, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs well in various conditions.

How Is 558A-552D Bearing Engineered for Reliability?

558A-552D Bearing features a double-row tapered roller design, providing stability under combined loads.
The chrome steel construction enhances durability, while the steel cage ensures smooth operation.
Its dynamic radial rating for two rows reaches 19,400 lbf, making it suitable for demanding tasks.
The standard radial clearance options allow for flexibility in different applications.

Built for Durability: 558A-552D Bearing

558A-552D Bearing’s chrome steel rollers and rings are designed to withstand heavy loads.
Its double-row construction distributes stress evenly, improving longevity.
The bearing operates efficiently within a wide temperature range of -30° to 110°C.
With a weight of 9.28 lb, it balances strength and practicality.

Steel vs Ceramic Bearings: Strengths of 558A-552D Bearing

558A-552D Bearing uses chrome steel for both rollers and rings, ensuring high load capacity.
The steel cage provides reliable roller alignment, reducing friction and wear.
Its dynamic thrust rating of 6,590 lbf makes it versatile for various applications.
The bearing’s standard radial clearance options cater to different operational needs.

Application

Industrial Uses of 558A-552D Bearing
558A-552D Bearing is commonly used in heavy machinery like construction equipment and mining drills, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in tough working conditions.

Where Is 558A-552D Bearing Used?
You’ll often find 558A-552D Bearing in agricultural machinery, such as tractors and harvesters, where its tapered rollers provide smooth operation under heavy loads. Its inch sizing makes it a popular choice for North American equipment.

Built for Heavy-Duty Use: 558A-552D Bearing
558A-552D Bearing excels in industrial gearboxes, offering reliable performance even under high stress. The open design allows for easy lubrication, extending its service life in demanding applications.

Automotive vs Aerospace: Applications of 558A-552D Bearing
In automotive systems, 558A-552D Bearing supports wheel hubs and differentials, while in aerospace, it’s used in landing gear mechanisms. Its ABEC-1 rating ensures consistent precision across both industries.

Essential Roles of 558A-552D Bearing
558A-552D Bearing is a go-to for conveyor systems in factories, where its standard radial clearance ensures smooth operation. The steel cage adds extra strength, making it suitable for continuous use.

Q&A

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