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559-552D TDO (Two-Row Double-Outer Race) (Imperial)

559-552D TDO (Two-Row Double-Outer Race) (Imperial)

The 559-552D is a two-row tapered roller bearing with a 2.5″ bore and 4.875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 88500 lbf and is designed for long-lasting performance.

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

With standard radial clearance and ABEC-1 rating, it offers reliable precision for industrial use. The steel cage ensures durability under heavy loads.

Ideal for applications like heavy machinery or vehicle axles where combined loads are common. Compliant with RoHS and REACH standards, it weighs 8.91 lbs for its robust size.

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Product Parameters

  • Part Number 559-552D
  • Brand TFL
  • Size 2.5" x 4.875" x 1.444"
  • Bore Dia 2.5"
  • 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 3.19"
  • 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 559
  • 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 8.91 lb

Features

How Is 559-552D Bearing Engineered for Reliability?

559-552D Bearing features a double-row tapered roller design, providing strong resistance to combined loads.
Its chrome steel construction ensures durability and long service life in demanding conditions.
The bearing’s dynamic radial load capacity reaches 88,500 lbf, making it suitable for heavy-duty applications.
With a standard radial clearance, it offers reliable performance across various operating conditions.

What Makes 559-552D Bearing Suitable for High-Temperature Applications?

559-552D Bearing operates effectively within a temperature range of -30° to 110°C.
Its chrome steel rings and rollers maintain structural integrity even under thermal stress.
The open seal design allows for proper lubrication, reducing friction and heat buildup.
This ensures consistent performance in environments with fluctuating temperatures.

Designed for Durability: 559-552D Bearing

559-552D Bearing is built with high-quality chrome steel for enhanced strength and wear resistance.
Its double-row construction distributes loads evenly, reducing stress on individual components.
The steel cage keeps the rollers aligned, minimising wear and extending operational life.
This design ensures reliable performance in industrial and automotive applications.

Steel vs Ceramic Bearings: Strengths of 559-552D Bearing

559-552D Bearing uses chrome steel for both rings and rollers, offering excellent load-bearing capacity.
The material choice provides good resistance to impact and fatigue in heavy-load scenarios.
Unlike ceramic options, this steel construction is more cost-effective for most industrial uses.
It maintains performance across a wide temperature range while requiring standard lubrication.

Application

Industrial Uses of 559-552D Bearing
559-552D Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

What Makes 559-552D Bearing a Preferred Choice?
In automotive applications, 559-552D Bearing supports wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 559-552D Bearing
For industrial automation, 559-552D Bearing is ideal for conveyor systems and robotic arms, where its tapered rollers offer smooth operation. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 559-552D Bearing
559-552D Bearing is versatile enough for both automotive drivetrains and aerospace landing gear, thanks to its robust construction. The standard radial clearance ensures consistent performance across different temperature ranges.

Key Fields for 559-552D Bearing
In agricultural machinery, 559-552D Bearing excels in tractors and harvesters, where its high dynamic load capacity is essential. The steel cage adds extra strength, making it suitable for rough terrain.

Q&A

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