+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
558A-552DC TDO (Two-Row Double-Outer Race) (Imperial)

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

The 558A-552DC 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 up to 74700 lbf and is designed for heavy-duty applications.

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

This model features standard radial clearance and meets ABEC-1 precision standards. Ideal for industrial machinery or vehicle axles where high radial and thrust loads are common.

Weighing 9.28 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH regulations for safe use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 558A-552DC
  • 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 552DC
  • 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

How Does 558A-552DC Bearing Handle Combined Loads?

558A-552DC Bearing features a double-row tapered roller design, providing excellent resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 74,700 lbf, ensuring reliable performance in demanding conditions.
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.

Performance Features of 558A-552DC Bearing

558A-552DC Bearing is built with precision tolerances, ensuring consistent performance under heavy loads.
The double-row design distributes stress evenly, extending the bearing’s service life.
Its standard radial clearance allows for smooth rotation, reducing friction and wear.
The open seal type facilitates easy lubrication, maintaining optimal performance over time.

Why Choose 558A-552DC Bearing for Heavy-Duty Applications?

558A-552DC Bearing’s tapered roller design efficiently handles combined loads, making it ideal for heavy-duty use.
The chrome steel rings and rollers provide superior strength and resistance to wear.
With a dynamic thrust rating of 6,590 lbf, it ensures reliable operation in challenging conditions.
Its ABEC-1 rating guarantees consistent quality and performance.

Application

Industrial Uses of 558A-552DC Bearing
The 558A-552DC Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads efficiently.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

Where Is 558A-552DC Bearing Used?
You’ll often find the 558A-552DC Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides stability under heavy loads.
The inch sizing makes it compatible with many North American industrial applications, simplifying replacements.

Built for Heavy-Duty Use: 558A-552DC Bearing
In automotive applications, the 558A-552DC Bearing supports wheel hubs and drivetrains, offering smooth performance even under high stress.
The open seal design allows for easy lubrication, extending its service life in rugged conditions.

Automotive vs Aerospace: Applications of 558A-552DC Bearing
While the 558A-552DC Bearing excels in automotive systems, it’s also suitable for aerospace ground support equipment, thanks to its robust load capacity.
The standard radial clearance ensures consistent performance across varying temperatures and operational demands.

Key Fields for 558A-552DC Bearing
The 558A-552DC Bearing is a go-to choice for industrial fans and pumps, where its tapered rollers reduce friction and improve efficiency.
Its steel cage adds extra strength, making it ideal for applications requiring frequent starts and stops.

Q&A

SEND INQUIRY