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

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

The 555-552DC is a double-row tapered roller bearing with a 2-inch bore and 4.875-inch outer diameter, built from sturdy chrome steel. It handles combined loads up to 74700 lbf and is designed for long-lasting performance in demanding conditions.

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

This model features standard cups and comes with a radial clearance option, suitable for applications needing standard or adjusted fits. Ideal for heavy machinery or industrial equipment where combined loads are common.

Weighing 10.36 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 555-552DC
  • Brand TFL
  • Size 2" x 4.8750" x 1.444"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.8750"
  • 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 2.6"
  • 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 555
  • 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 10.36 lb

Features

How Is 555-552DC Bearing Engineered for Reliability?

555-552DC Bearing features a double-row tapered roller design, providing strong resistance to combined loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 74,700 lbf.

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

Optimised lubrication channels ensure smooth operation, even under heavy loads.
The standard radial clearance offers flexibility for different applications.

Application

Industrial Uses of 555-552DC Bearing
555-552DC 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. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 555-552DC Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. Its inch sizing makes it a preferred choice for North American vehicle models.

For industrial automation, 555-552DC Bearing’s open design allows easy lubrication, maintaining smooth operation in conveyor systems and robotic arms. The standard radial clearance offers flexibility for different operational needs.

Where Is 555-552DC Bearing Used?
You’ll often find 555-552DC Bearing in agricultural machinery, where its tapered roller design manages heavy loads from ploughs and harvesters. The steel cage adds extra strength for long-term use.

In material handling systems, 555-552DC Bearing ensures smooth rotation in pulley assemblies and lifting gear. Its ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 555-552DC Bearing
555-552DC Bearing excels in forestry equipment, withstanding shock loads from log splitters and chippers. The double-row configuration distributes stress evenly, extending service life.

For railway applications, 555-552DC Bearing handles the constant vibration and axial forces in bogie assemblies. The temperature range of -30° to 110°C ensures reliability in diverse climates.

Automotive vs Aerospace: Applications of 555-552DC Bearing
In trucks and buses, 555-552DC Bearing supports differential systems, offering robust performance under heavy loads. The inch measurements simplify replacements in commercial fleets.

While not typically used in aerospace, 555-552DC Bearing’s precision makes it suitable for ground support equipment like cargo loaders. Its standard lubrication needs align with maintenance routines.

Q&A

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