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385A-384XD TDO (Two-Row Double-Outer Race) (Imperial)

385A-384XD TDO (Two-Row Double-Outer Race) (Imperial)

The 385A-384XD is a two-row tapered roller bearing with a 2″ bore and 3.9370″ outer diameter, built from sturdy chrome steel for long-lasting performance.
It handles combined loads with ease, supporting dynamic radial loads up to 42200 lbf and thrust loads up to 3810 lbf, making it suitable for heavy-duty applications.
The open design allows for straightforward lubrication, while the steel cage ensures durability even in demanding conditions.
Ideal for industrial machinery or automotive systems where high load capacity and reliability are essential.

With a standard ABEC-1 rating, this bearing offers consistent performance across a temperature range of -30°C to 110°C.
Its double-row construction provides extra stability, distributing loads evenly for smoother operation.
The bearing comes in standard radial clearance but is also available in C3, C4, or C5 options for specific needs.
Weighing 5.95 lb, it’s robust yet manageable for its size, compliant with RoHS and REACH standards.

Designed for easy maintenance, the 385A-384XD fits standard cup and cone setups, simplifying replacements.
Its tapered rollers reduce friction, ensuring efficient rotation under heavy loads.
Perfect for applications like gearboxes, wheel hubs, or construction equipment where durability and precision matter.
The bearing’s dimensions and tolerances make it a reliable choice for imperial-system machinery.

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Product Parameters

  • Part Number 385A-384XD
  • Brand TFL
  • Size 2" x 3.9370" x 0.864"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.9370"
  • 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 2.4"
  • 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 385A
  • 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 5.95 lb

Features

Performance Features of 385A-384XD Bearing

385A-384XD Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 42,200 lbf, making it suitable for heavy-duty applications.

The double-row tapered roller design ensures stability and efficient load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

385A-384XD Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing wear and extending service life.

This bearing requires lubrication but offers consistent performance across its wide temperature range.
Its inch measurements make it compatible with imperial system machinery.

Application

Industrial Uses of 385A-384XD Bearing
385A-384XD Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 385A-384XD Bearing Used?
You’ll find 385A-384XD Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides stability under varying loads. The inch sizing makes it a good fit for North American equipment standards.

Built for Heavy-Duty Use: 385A-384XD Bearing
385A-384XD Bearing works well in industrial gearboxes, offering reliable performance even under high stress. Its open seal type allows for easy lubrication, extending its service life in demanding applications.

Automotive vs Aerospace: Applications of 385A-384XD Bearing
In automotive applications, 385A-384XD Bearing supports wheel hubs and differential systems, while in aerospace, it’s used in auxiliary systems where precision and reliability are key. The steel cage adds extra strength for long-term use.

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