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

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

The 387-384DC is a double-row tapered roller bearing with a 2.25″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel for long-lasting performance. It handles combined loads with a dynamic radial capacity of 42200 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 use. The bearing comes in standard radial clearance but is also available in C3, C4, or C5 options for specific needs.

This model is ideal for industrial machinery or automotive applications where high radial and thrust loads are common. Its double-row construction provides extra stability and load distribution.

Weighing 3.31 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it’s a reliable option for replacements or new installations.

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Product Parameters

  • Part Number 387-384DC
  • 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 2.64"
  • 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 387
  • 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 3.31 lb

Features

How Is 387-384DC Bearing Engineered for Reliability?

387-384DC Bearing features a double-row tapered roller design, providing excellent load distribution and stability.
Its chrome steel construction ensures durability, even under combined radial and thrust loads.

The dynamic radial load capacity reaches 42,200 lbf, making it suitable for heavy-duty applications.
With a standard radial clearance, it offers reliable performance in various operating conditions.

387-384DC Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
Its steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 387-384DC Bearing
The 387-384DC 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 efficiently. Its chrome steel construction ensures durability in demanding environments.

What Makes 387-384DC Bearing a Preferred Choice?
In automotive applications, 387-384DC Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 387-384DC Bearing
For industrial conveyor systems, 387-384DC Bearing’s tapered roller design offers smooth operation and long service life. The open seal type allows for easy lubrication, reducing maintenance downtime.

Automotive vs Aerospace: Applications of 387-384DC Bearing
In automotive settings, 387-384DC Bearing excels in transmissions and axles, while its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance in both fields.

Where Is 387-384DC Bearing Used?
You’ll find 387-384DC Bearing in agricultural machinery, where its robust design handles dirt and debris without compromising performance. The standard radial clearance makes it versatile for various farming equipment.

Q&A

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