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386-384ED TDO (Two-Row Double-Outer Race) (Imperial)

386-384ED TDO (Two-Row Double-Outer Race) (Imperial)

The 386-384ED is a double-row tapered roller bearing with a 2.184″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 35600 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 from -30°C to 110°C, making it versatile for various environments.

This model features a standard radial clearance and is ABEC-1 rated for reliable precision. Ideal for heavy-duty applications like industrial gearboxes or machinery where combined loads are common.

Weighing 3.21 lb, it’s a robust choice for replacements or new installations. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 386-384ED
  • Brand TFL
  • Size 2.184" x 3.937" x 0.864"
  • Bore Dia 2.184"
  • 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 2.56"
  • Cup Frontface Backing Diameter 3.68"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 35600 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 386
  • 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) 5300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3210 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 9230 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 3.21 lb

Features

How Is 386-384ED Bearing Engineered for Reliability?

386-384ED Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability and reliable performance in demanding conditions.

The dynamic radial load capacity reaches 35,600 lbf, making it suitable for heavy-duty applications.
With a standard radial clearance and ABEC-1 rating, it balances precision and efficiency.

What Makes 386-384ED Bearing Suitable for High-Temperature Applications?

386-384ED Bearing operates effectively within a temperature range of -30° to 110°C.
Its chrome steel rollers and rings maintain structural integrity under thermal stress.

The open design allows for proper lubrication, ensuring smooth operation even in high-heat environments.
This makes it a dependable choice for industrial machinery and automotive applications.

Built for Durability: 386-384ED Bearing

386-384ED Bearing’s double-row construction enhances load distribution, reducing wear over time.
The steel cage keeps rollers aligned, minimising friction and extending service life.

Its dynamic thrust rating of 3,210 lbf per row ensures reliable performance under stress.
With standard radial clearance options, it offers flexibility for various operational needs.

Steel vs Ceramic Bearings: Strengths of 386-384ED Bearing

386-384ED Bearing uses chrome steel for both rollers and rings, providing excellent strength and wear resistance.
This material choice ensures cost-effective durability without compromising performance.

The bearing’s tapered roller design efficiently handles combined loads, making it versatile.
Its compliance with RoHS and REACH standards also highlights its environmental safety.

Application

Industrial Uses of 386-384ED Bearing
The 386-384ED 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 harsh environments, making it a reliable choice for long-term use.

What Makes 386-384ED Bearing a Preferred Choice?
In automotive applications, 386-384ED Bearing supports wheel hubs and differential systems, providing smooth performance under heavy loads.
The imperial sizing makes it compatible with many North American vehicle models, simplifying maintenance and replacements.

Built for Heavy-Duty Use: 386-384ED Bearing
For industrial conveyor systems, 386-384ED Bearing offers excellent load capacity and stability, ensuring consistent operation.
The open seal design allows for easy lubrication, extending the bearing’s service life in demanding conditions.

Automotive vs Aerospace: Applications of 386-384ED Bearing
In automotive settings, 386-384ED Bearing is ideal for transmissions and axles, where its tapered rollers manage high stress.
While less common in aerospace, it can be found in ground support equipment, benefiting from its robust construction.

Where Is 386-384ED Bearing Used?
You’ll often find 386-384ED Bearing in agricultural machinery, such as tractors and harvesters, where it handles uneven loads.
Its standard radial clearance options make it adaptable to various operational requirements.

Q&A

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