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389-384DC TDO (Two-Row Double-Outer Race) (Imperial)

389-384DC TDO (Two-Row Double-Outer Race) (Imperial)

The 389-384DC is a two-row tapered roller bearing with a 2.188″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 42,200 lbf and is designed for long-lasting performance.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 385 series and comes with standard radial clearance, though C3/C4/C5 options are available. Ideal for heavy-duty applications like truck axles or industrial gearboxes.

Weighing 3.41 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

The 389-384DC features a tapered roller design, offering reliable performance under high radial and thrust loads. Its chrome steel rollers and steel cage ensure durability.

With a dynamic radial rating of 10,900 lbf for two rows, it’s suited for demanding environments. The open seal type simplifies maintenance and lubrication.

This bearing is perfect for machinery requiring precise load distribution, such as construction equipment or agricultural vehicles. Its ABEC-1 rating ensures consistent quality.

The standard radial clearance makes it versatile, while optional C3/C4/C5 clearances cater to specific needs.

This double-row tapered roller bearing combines strength and precision, with a 2.188″ bore and 3.937″ outer diameter. It’s made from high-quality chrome steel for extended wear resistance.

The bearing handles dynamic radial loads up to 42,200 lbf and dynamic thrust loads up to 3,810 lbf, making it versatile for various applications. Its open design allows for straightforward lubrication.

Suitable for use in harsh conditions, it performs well in temperatures from -30°C to 110°C. The steel cage adds to its durability and reliability.

Ideal for heavy machinery, this bearing is a solid choice for industries like mining or transportation. Compliant with RoHS and REACH standards.

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Product Parameters

  • Part Number 389-384DC
  • Brand TFL
  • Size 2.188" x 3.937" x 0.864"
  • Bore Dia 2.188"
  • 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 2.56"
  • 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 389
  • 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 3.41 lb

Features

Performance Features of 389-384DC Bearing

389-384DC 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 distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various conditions.

389-384DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, enhancing durability and reducing maintenance needs.

Application

Industrial Uses of 389-384DC Bearing
The 389-384DC 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 effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 389-384DC Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it a practical choice for vehicles using imperial measurements.

For industrial automation, 389-384DC Bearing is ideal for conveyor systems and robotic arms, where its open design allows for easy lubrication. The standard radial clearance ensures smooth operation in high-speed scenarios.

Where Is 389-384DC Bearing Used?
You’ll often find 389-384DC Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design handles heavy loads with ease. The steel cage adds extra strength for long-term use.

In material handling equipment, 389-384DC Bearing excels in forklifts and cranes, thanks to its dynamic radial load capacity. The ABEC-1 rating ensures consistent performance without unnecessary precision costs.

Built for Heavy-Duty Use: 389-384DC Bearing
The 389-384DC Bearing is a go-to for forestry equipment, such as log splitters and sawmills, where its robust design withstands rough conditions. The open seal type simplifies maintenance in dusty environments.

For railway applications, 389-384DC Bearing supports axle boxes, ensuring smooth operation under constant vibration. Its temperature range of -30° to 110°C makes it versatile for various climates.

Automotive vs Aerospace: Applications of 389-384DC Bearing
In automotive systems, 389-384DC Bearing is trusted for drivetrain components, offering reliable performance under high stress. The inch measurements align well with North American vehicle standards.

For aerospace ground equipment, 389-384DC Bearing is used in tow tractors and loading systems, where its combined load capacity is essential. The chrome steel rollers provide long-lasting wear resistance.

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