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389A-384ED TDO (Two-Row Double-Outer Race) (Imperial)

389A-384ED TDO (Two-Row Double-Outer Race) (Imperial)

The 389A-384ED is a two-row tapered roller bearing with a 2.125″ bore and 3.937″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads up to 42,200 lbf and works well in temperatures from -30°C to 110°C.

Its double-row design provides extra stability, while the open seal allows for easy lubrication. The steel cage ensures smooth operation even under heavy loads.

This bearing is ideal for industrial machinery or vehicle applications where both radial and thrust loads are present. It comes in standard radial clearance but can also be ordered in C3, C4, or C5 options.

Weighing 3.33 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it offers reliable performance with proper maintenance.

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Product Parameters

  • Part Number 389A-384ED
  • Brand TFL
  • Size 2.125" x 3.937" x 0.864"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.562"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.864"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 1.9369"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.4"
  • Cup Frontface Backing Diameter 3.68"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 42200 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 389A
  • Cup Part Number 384ED
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 385
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 6280 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3810 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10900 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 3.33 lb

Features

How Is 389A-384ED Bearing Engineered for Reliability?

389A-384ED Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability, even under dynamic radial loads up to 42,200 lbf.

The precision-engineered cage maintains roller alignment, reducing friction and wear.
With a standard radial clearance, it offers consistent performance across various applications.

389A-384ED Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design simplifies lubrication, ensuring smooth operation over extended periods.

Application

Industrial Uses of 389A-384ED Bearing
The 389A-384ED 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. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 389A-384ED Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. The inch sizing makes it a preferred choice for vehicles using imperial measurements.

For industrial automation, 389A-384ED Bearing is ideal for 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 389A-384ED Bearing Used?
You’ll often find 389A-384ED Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design manages heavy loads smoothly. The steel cage adds extra strength for long-term use.

In manufacturing plants, 389A-384ED Bearing is a go-to for gearboxes and pulleys, thanks to its balanced radial and thrust capabilities. The standard radial clearance ensures consistent performance across different applications.

Built for Heavy-Duty Use: 389A-384ED Bearing
The 389A-384ED Bearing excels in forestry equipment, such as log splitters and sawmills, where its robust design withstands high-impact loads. The chrome steel rollers enhance wear resistance.

For material handling systems, 389A-384ED Bearing provides reliable support in cranes and forklifts. Its double-row configuration distributes loads evenly, reducing stress on individual components.

Automotive vs Aerospace: Applications of 389A-384ED Bearing
In automotive settings, 389A-384ED Bearing is trusted for axle systems, offering stability under heavy loads. The inch measurements ensure compatibility with a wide range of vehicles.

For aerospace ground equipment, 389A-384ED Bearing is used in loading platforms and maintenance tools. Its temperature tolerance makes it suitable for varying operational conditions.

Q&A

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