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

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

The 386A-384DC is a double-row tapered roller bearing with a 1.875″ bore and 3.937″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads with a dynamic radial capacity of 42,200 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy loads. The bearing is ABEC-1 rated, offering reliable precision for industrial applications.

This model is ideal for machinery requiring robust support, such as gearboxes or heavy-duty equipment. Its standard radial clearance can be adjusted to C3, C4, or C5 for specific needs.

Weighing 3.91 lb, it’s a solid choice for replacements, compliant with RoHS and REACH standards. The double-row design provides extra stability for high-load scenarios.

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Product Parameters

  • Part Number 386A-384DC
  • Brand TFL
  • Size 1.875" x 3.937" x 0.864"
  • Bore Dia 1.875"
  • 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 2.2"
  • 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 386A
  • 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) 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 3.91 lb

Features

How Does 386A-384DC Bearing Handle Combined Loads?

386A-384DC Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 42,200 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

Why Choose 386A-384DC Bearing for Heavy-Duty Applications?

386A-384DC Bearing’s chrome steel construction provides durability under heavy combined loads.
The tapered roller design ensures smooth operation, even at high radial and thrust capacities.
Its standard radial clearance options allow for flexibility in different applications.
The steel cage maintains roller alignment, enhancing longevity and reducing maintenance needs.

Engineered for Reliability: 386A-384DC Bearing

386A-384DC Bearing features precision-machined chrome steel components for consistent performance.
The double-row design increases load capacity, making it suitable for industrial applications.
With a dynamic thrust rating of 3,810 lbf, it handles axial loads efficiently.
Its ABEC-1 rating ensures dependable precision in various operating conditions.

Structural Advantages of 386A-384DC Bearing

386A-384DC Bearing’s double-row tapered rollers provide stability under heavy loads.
The chrome steel materials resist wear, ensuring a longer operational life.
Its standard lubrication requirement simplifies maintenance without compromising performance.
The bearing’s wide temperature range makes it versatile for different environments.

Application

Industrial Uses of 386A-384DC Bearing
The 386A-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 efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 386A-384DC Bearing supports axle systems and wheel hubs, providing reliable performance under high stress. The inch sizing makes it a preferred choice for North American vehicle models.

For industrial automation, 386A-384DC 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 386A-384DC Bearing Used?
You’ll often find 386A-384DC Bearing in agricultural machinery, like tractors and harvesters, where its robust design withstands rough terrain and heavy loads. The steel cage adds extra strength for long-term use.

In manufacturing plants, 386A-384DC Bearing is ideal for gearboxes and pumps, thanks to its ability to manage both radial and axial forces. The standard radial clearance ensures smooth operation in various temperature conditions.

Built for Heavy-Duty Use: 386A-384DC Bearing
The 386A-384DC Bearing excels in forestry equipment, such as log splitters and sawmills, where its combined load capacity is essential. Its ABEC-1 rating balances precision and cost-effectiveness for industrial applications.

For material handling systems, 386A-384DC Bearing’s tapered rollers reduce friction in high-speed scenarios. The inch measurements simplify replacements in existing machinery setups.

Automotive vs Aerospace: Applications of 386A-384DC Bearing
In automotive settings, 386A-384DC Bearing is trusted for drivetrain components, offering stability under varying loads. Its chrome steel rollers resist wear even in high-mileage vehicles.

For aerospace ground support equipment, 386A-384DC Bearing provides reliable performance in load-bearing mechanisms. The temperature range of -30° to 110°C ensures functionality in diverse climates.

Q&A

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