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387AS-384DC TDO (Two-Row Double-Outer Race) (Imperial)

387AS-384DC TDO (Two-Row Double-Outer Race) (Imperial)

The 387AS-384DC is a double-row tapered roller bearing with a 2.25″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 42200 lbf and is designed for long-lasting performance.

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 conditions.

This model is part of the 385 series, with standard radial clearance and ABEC-1 precision. It’s suitable for applications like heavy machinery or automotive systems where combined loads are common.

Weighing 3.28 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for industrial use.

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Product Parameters

  • Part Number 387AS-384DC
  • Brand TFL
  • Size 2.25" x 3.937" x 0.864"
  • Bore Dia 2.25"
  • 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 2.87"
  • 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 387AS
  • 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 3.28 lb

Features

Performance Features of 387AS-384DC Bearing

387AS-384DC 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 enhances load distribution, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various conditions.

387AS-384DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, ensuring consistent performance under stress.

The open seal design allows for easy lubrication, reducing maintenance needs.
This bearing is ideal for applications requiring durability and precision.

Application

Industrial Uses of 387AS-384DC Bearing
The 387AS-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.

Where Is 387AS-384DC Bearing Used?
You’ll often find the 387AS-384DC Bearing in agricultural machinery, supporting components like gearboxes and wheel hubs. Its inch sizing makes it a practical choice for North American equipment manufacturers.

Built for Heavy-Duty Use: 387AS-384DC Bearing
The 387AS-384DC Bearing excels in industrial fans and pumps, where its tapered roller design provides smooth operation under high loads. The open seal type allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 387AS-384DC Bearing
In automotive applications, the 387AS-384DC Bearing is ideal for truck axles and drivetrains, offering reliable performance. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Perfect Fit for Automation: 387AS-384DC Bearing
The 387AS-384DC Bearing works well in automated conveyor systems, where its combined load capacity ensures consistent performance. Its standard radial clearance makes it adaptable to various industrial settings.

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