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

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

The 386-384DC 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 ranging 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 vehicle axles where combined loads are common.

Weighing 3.41 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial settings.

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Product Parameters

  • Part Number 386-384DC
  • 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 1.6875"
  • 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 2.0624"
  • 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 384DC
  • 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 3.41 lb

Features

Performance Features of 386-384DC Bearing

386-384DC Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 35,600 lbf, making it suitable for heavy-duty applications.
The double-row tapered roller design ensures stability and efficient load distribution.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 386-384DC Bearing Engineered for Reliability?

386-384DC Bearing features a steel cage that maintains roller alignment, reducing wear and extending life.
The standard radial clearance options (including C3/C4/C5) allow for flexibility in different applications.
Its open design simplifies lubrication, ensuring smooth operation over time.
The bearing’s construction meets ABEC-1 standards for consistent quality.

Built for Durability: 386-384DC Bearing

386-384DC Bearing’s double-row design enhances its load-carrying capacity and operational stability.
The chrome steel components resist wear, even under high radial and thrust loads.
Its precise tolerances ensure reliable performance in demanding environments.
With a weight of 3.41 lb, it balances strength and practicality.

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

386-384DC Bearing uses chrome steel for both rollers and rings, providing excellent durability.
This material choice ensures resistance to heavy loads and prolonged use.
The bearing’s open design allows for easy lubrication, maintaining performance.
Its standard radial clearance options cater to diverse operational needs.

Why Choose 386-384DC Bearing for Precision Tasks?

386-384DC Bearing’s tapered roller design ensures precise load handling and smooth operation.
The steel cage keeps rollers aligned, minimising friction and wear.
With dynamic radial ratings up to 9,230 lbf (two-row), it handles demanding tasks reliably.
Its compliance with RoHS and REACH standards highlights its environmental safety.

Application

Industrial Uses of 386-384DC Bearing
The 386-384DC Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively.
Its chrome steel construction ensures durability even in demanding environments.

Where Is 386-384DC Bearing Used?
You’ll often find the 386-384DC Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides smooth performance under heavy loads.
The inch sizing makes it a good fit for American and British machinery standards.

Built for Heavy-Duty Use: 386-384DC Bearing
This bearing excels in industrial gearboxes, thanks to its robust double-row construction and high dynamic load capacity.
The open seal type allows for easy lubrication, extending its service life in continuous operation.

Automotive vs Aerospace: Applications of 386-384DC Bearing
In automotive settings, the 386-384DC Bearing supports axle systems, while in aerospace, it’s used in landing gear mechanisms for its reliability.
The standard radial clearance offers flexibility for various precision requirements.

What Makes 386-384DC Bearing a Preferred Choice?
Its ability to handle both radial and thrust loads makes the 386-384DC Bearing ideal for agricultural machinery like tractors and harvesters.
The steel cage adds extra strength, ensuring consistent performance over time.

Q&A

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