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

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

The 386A-384XD 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 up to 42200 lbf and is designed for smooth operation in a range of industrial settings.

Its open design allows for 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 climates.

This model is part of the 385 series and comes with standard cups for straightforward installation. Ideal for applications like heavy machinery or automotive systems where combined loads are common.

Weighing 6.15 lb, it offers a robust yet manageable solution for demanding tasks. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 386A-384XD
  • 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 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 2.2"
  • 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 386A
  • 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 6.15 lb

Features

Performance Features of 386A-384XD Bearing

386A-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 of 386A-384XD Bearing provides stability and even load distribution.
This construction reduces wear and extends the bearing’s operational life under demanding conditions.

386A-384XD Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance and ABEC-1 rating make it suitable for various industrial uses.

With a weight of 6.15 lb, 386A-384XD Bearing balances durability and ease of handling.
The open seal type allows for straightforward lubrication and maintenance.

Application

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

In automotive applications, 386A-384XD Bearing supports wheel hubs and drivetrain components, providing reliable performance under high stress. The inch sizing makes it compatible with many North American vehicle models.

For industrial automation, 386A-384XD Bearing’s open design allows for easy lubrication, extending its lifespan in continuous operation. Its tapered roller design also helps maintain precision in high-speed scenarios.

Where Is 386A-384XD Bearing Used?
You’ll often find 386A-384XD Bearing in agricultural machinery, where its robust construction handles uneven loads and harsh conditions. The steel cage adds extra strength for long-term use.

In conveyor systems, 386A-384XD Bearing’s double-row setup ensures smooth movement under heavy loads. Its standard radial clearance makes it adaptable to various industrial settings.

Built for Heavy-Duty Use: 386A-384XD Bearing
The 386A-384XD Bearing excels in applications like gearboxes and pumps, where its combined load capacity is essential. Its ABEC-1 rating ensures consistent performance for general industrial needs.

In material handling equipment, 386A-384XD Bearing’s tapered rollers reduce friction, improving efficiency. The open seal type also simplifies maintenance in dusty or wet environments.

Automotive vs Aerospace: Applications of 386A-384XD Bearing
In automotive systems, 386A-384XD Bearing is ideal for wheel ends and differentials, offering reliable load support. Its inch measurements align with many standard vehicle designs.

For aerospace ground equipment, 386A-384XD Bearing’s temperature range suits various operational conditions. However, its weight may limit use in airborne applications.

Q&A

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