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

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

The 389-384XD is a tapered roller bearing with a 2.188″ bore and 3.937″ outer diameter, built from sturdy chrome steel for combined load handling. It supports dynamic radial loads up to 42200 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its double-row design with open construction ensures durability, while the steel cage maintains alignment under heavy use. The bearing requires regular lubrication for optimal performance.

This model is ideal for industrial machinery or vehicle axles where combined radial and thrust loads are common. Its standard radial clearance and ABEC-1 rating make it a versatile choice for general applications.

Weighing 5.64 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable option for replacements or new installations.

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Product Parameters

  • Part Number 389-384XD
  • 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 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 2.56"
  • 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 389
  • 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 5.64 lb

Features

How Is 389-384XD Bearing Engineered for Reliability?

389-384XD Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 42,200 lbf.

The steel cage maintains roller alignment, reducing wear and extending the bearing’s service life.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

389-384XD Bearing’s standard radial clearance and ABEC-1 rating offer consistent performance for industrial applications.
Its open design allows for easy lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 389-384XD Bearing
The 389-384XD 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 even in demanding environments.

Where Is 389-384XD Bearing Used?
You’ll often find the 389-384XD Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads.
The inch sizing makes it a popular choice for North American vehicle models.

Built for Heavy-Duty Use: 389-384XD Bearing
This bearing excels in industrial gearboxes, offering reliable performance under high stress.
The open seal type allows for easy lubrication, extending its service life in continuous operation.

Automotive vs Aerospace: Applications of 389-384XD Bearing
In automotive systems, the 389-384XD Bearing supports heavy axles and drivetrains, while in aerospace, it’s used in landing gear for its load capacity.
The standard radial clearance ensures smooth performance in both fields.

Practical Applications of 389-384XD Bearing
For agricultural machinery, the 389-384XD Bearing is ideal for tractors and harvesters, where its robust design withstands rough conditions.
The steel cage adds extra strength, making it a dependable choice for farmers.

Q&A

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