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

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

The 386A-384ED is a two-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 double-row design provides extra stability, while the open seal allows for easy lubrication. The steel cage ensures durability, making it suitable for heavy-duty applications.

This bearing is ideal for industrial machinery or automotive systems where high radial and thrust loads are common. It meets RoHS and REACH standards, ensuring safe and reliable use.

Weighing 3.71 lb, it’s a robust choice for demanding environments. The standard radial clearance and ABEC-1 rating make it versatile for various setups.

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Product Parameters

  • Part Number 386A-384ED
  • 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 1.562"
  • 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 2.2"
  • 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 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 3.71 lb

Features

Performance Features of 386A-384ED Bearing

386A-384ED Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 42,200 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation in various industrial settings.

386A-384ED Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 386A-384ED Bearing
386A-384ED Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 386A-384ED Bearing Used?
You’ll find 386A-384ED Bearing in industrial gearboxes and power transmission systems, thanks to its high dynamic load capacity. Its inch sizing makes it a good fit for North American machinery standards.

Built for Heavy-Duty Use: 386A-384ED Bearing
386A-384ED Bearing excels in applications like mining equipment and large conveyor systems, where reliability under heavy loads is key. The open seal design allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 386A-384ED Bearing
In automotive settings, 386A-384ED Bearing supports drivetrain components like differentials, while in aerospace, it’s used in auxiliary systems requiring precise load handling. The steel cage adds stability in high-vibration environments.

Essential Roles of 386A-384ED Bearing
386A-384ED Bearing is vital in railway axle boxes and wind turbine gearboxes, where its tapered roller design manages varying load directions. The standard radial clearance ensures smooth operation in fluctuating temperatures.

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