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385X-384ED TDO (Two-Row Double-Outer Race) (Imperial)

385X-384ED TDO (Two-Row Double-Outer Race) (Imperial)

The 385X-384ED is a double-row tapered roller bearing with a 2.1654″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads well, with a dynamic radial capacity of 42200 lbf and a two-row rating of 10900 lbf.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 385 series, featuring standard cups and a tapered roller design for reliable performance. Ideal for industrial machinery or automotive applications where combined loads are common.

Weighing 3.24 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, making it a safe choice for various environments.

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Product Parameters

  • Part Number 385X-384ED
  • Brand TFL
  • Size 2.1654" x 3.937" x 0.864"
  • Bore Dia 2.1654"
  • 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 2.64"
  • 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 385X
  • 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 3.24 lb

Features

How Is 385X-384ED Bearing Engineered for Reliability?

385X-384ED Bearing features a double-row tapered roller design, providing strong resistance to combined loads.
Its dynamic radial load capacity reaches 42,200 lbf, ensuring reliable performance in demanding applications.

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 environmental conditions.

385X-384ED Bearing’s standard radial clearance offers flexibility for different operational needs.
Its precise tolerances and robust design make it a dependable choice for heavy-duty machinery.

Application

Industrial Uses of 385X-384ED Bearing
The 385X-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 effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 385X-384ED Bearing supports wheel hubs and drivetrain components, providing reliable performance under high stress. The imperial sizing makes it a preferred choice for North American vehicle models.

For industrial automation, 385X-384ED Bearing’s tapered roller design offers precision in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life in continuous operation.

Where Is 385X-384ED Bearing Used?
You’ll often find 385X-384ED Bearing in agricultural machinery, where its robust design handles uneven loads and harsh conditions. The steel cage adds extra strength, making it suitable for tractors and harvesters.

In material handling systems, 385X-384ED Bearing ensures smooth operation in forklifts and cranes. Its standard radial clearance provides flexibility for various load requirements.

Built for Heavy-Duty Use: 385X-384ED Bearing
The 385X-384ED Bearing excels in forestry equipment, such as log splitters and sawmills, thanks to its high dynamic radial load capacity. Its tapered rollers distribute stress evenly, reducing wear.

For railway applications, 385X-384ED Bearing supports axle boxes, where its combined load handling is essential. The ABEC-1 rating ensures consistent performance at moderate speeds.

Automotive vs Aerospace: Applications of 385X-384ED Bearing
In automotive systems, 385X-384ED Bearing is ideal for heavy trucks and buses, offering reliable performance under constant vibration. The inch measurements simplify replacements in older models.

For aerospace ground equipment, 385X-384ED Bearing handles the rigorous demands of aircraft tow tractors and loading vehicles. Its temperature range suits both cold and warm operating conditions.

Q&A

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