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

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

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

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. The bearing works well in temperatures from -30°C to 110°C, making it versatile for various environments.

This bearing is part of the 385 series, offering reliable performance in applications like heavy machinery or vehicle axles. With standard radial clearance and ABEC-1 rating, it balances precision and affordability.

Weighing 5.56 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use. Ideal where combined radial and thrust loads are present.

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Product Parameters

  • Part Number 387W-384XD
  • 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 3.764"
  • 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 4.1389"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.6"
  • Cup Frontface Backing Diameter 3.74"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 42200 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 387W
  • Cup Part Number 384XD
  • 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 5.56 lb

Features

Performance Features of 387W-384XD Bearing

387W-384XD 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 stability and load distribution.
With a standard radial clearance, it provides smooth operation in various conditions.

387W-384XD Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage ensures proper roller alignment, reducing wear and extending service life.

The open seal design allows for easy lubrication, maintaining optimal performance.
This bearing is ideal for applications requiring durability and precision.

Application

Industrial Uses of 387W-384XD Bearing
The 387W-384XD Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in rugged environments.

What Makes 387W-384XD Bearing a Preferred Choice?
With its tapered roller design, 387W-384XD Bearing excels in applications like gearboxes and wheel hubs, providing smooth operation under high stress. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 387W-384XD Bearing
This bearing is ideal for industrial fans and conveyor systems, where its high dynamic radial load capacity (42,200 lbf) ensures reliable performance. The inch sizing makes it compatible with many North American machinery standards.

Automotive vs Aerospace: Applications of 387W-384XD Bearing
In automotive systems, 387W-384XD Bearing supports axles and differentials, while in aerospace, it’s used in landing gear assemblies. Its temperature range (-30° to 110°C) suits both environments.

Key Fields for 387W-384XD Bearing
The 387W-384XD Bearing is a go-to for mining equipment, where its robust construction withstands extreme loads. The steel cage adds stability, making it a dependable choice for long-term use.

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