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554-552D TDO (Two-Row Double-Outer Race) (Imperial)

554-552D TDO (Two-Row Double-Outer Race) (Imperial)

The 554-552D is a double-row tapered roller bearing with a 2.4375″ bore and 4.875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 74700 lbf and is designed for long-lasting performance.

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

This model is part of the 555 series, with standard radial clearance and ABEC-1 precision. Ideal for heavy-duty applications like industrial gearboxes or large machinery where combined loads are common.

Weighing 9.09 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 554-552D
  • Brand TFL
  • Size 2.4375" x 4.875" x 1.444"
  • Bore Dia 2.4375"
  • 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 3.03"
  • 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 554
  • 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 9.09 lb

Features

How Does 554-552D Bearing Handle Combined Loads?

554-552D Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 74,700 lbf, ensuring reliable performance in demanding 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 environments.

What Makes 554-552D Bearing Durable?

554-552D Bearing features a double-row tapered roller design, providing enhanced load distribution.
The chrome steel construction resists wear, ensuring long-lasting performance.
Its standard radial clearance allows for smooth operation under combined loads.
The open seal type simplifies maintenance, reducing downtime.

Engineered for Precision: 554-552D Bearing

554-552D Bearing’s precise tolerances ensure consistent performance in inch-system applications.
The tapered roller design minimises friction, enhancing efficiency.
With a dynamic thrust rating of 6,590 lbf, it handles heavy loads effortlessly.
Its ABEC-1 rating guarantees reliable precision for industrial use.

Application

Industrial Uses of 554-552D Bearing
554-552D Bearing is commonly used in heavy machinery, such as 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, 554-552D Bearing supports axle systems and wheel hubs, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for North American vehicle manufacturers.

For industrial automation, 554-552D Bearing fits well in conveyor systems and robotic arms, where precision and load capacity are key. The open seal design allows for easy lubrication, extending its service life.

Where Is 554-552D Bearing Used?
554-552D Bearing finds its place in agricultural machinery, particularly in tractors and harvesters, due to its robust tapered roller design. The standard radial clearance ensures smooth operation in dusty conditions.

It’s also suitable for wind turbine gearboxes, where its dynamic load ratings meet the demands of high-torque applications. The steel cage adds stability during prolonged use.

Built for Heavy-Duty Use: 554-552D Bearing
554-552D Bearing excels in railway applications, such as freight car axles, thanks to its combined load handling and temperature resilience. The ABEC-1 rating balances precision and cost-effectiveness.

In marine equipment, 554-552D Bearing withstands corrosive environments while maintaining performance. The required lubrication ensures consistent operation even in wet conditions.

Automotive vs Aerospace: Applications of 554-552D Bearing
In automotive systems, 554-552D Bearing is ideal for drivetrains, offering reliable performance under heavy loads. Its imperial measurements align with standard automotive designs.

For aerospace ground support equipment, 554-552D Bearing provides the necessary strength and precision. The chrome steel rollers ensure minimal wear during frequent use.

Q&A

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