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

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

The 385AX-384XD is a two-row tapered roller bearing with a 2-inch bore and 3.937-inch outer diameter, built from sturdy chrome steel. It handles combined loads up to 42,200 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing works well in temperatures from -30°C to 110°C, making it suitable for various environments.

This double-row design offers excellent radial and thrust load capacity, with dynamic ratings of 10,900 lbf (radial) and 3,810 lbf (thrust) for two rows. Ideal for heavy machinery, gearboxes, or industrial equipment where robust performance is needed.

Weighing 5.96 lb, it’s a solid choice for applications requiring durability and reliability. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 385AX-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 2.28"
  • 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 385AX
  • 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 5.96 lb

Features

Performance Features of 385AX-384XD Bearing

385AX-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.

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

The open seal design allows for easy lubrication, enhancing maintenance efficiency.
This bearing is ideal for applications requiring durability and consistent performance.

Application

Industrial Uses of 385AX-384XD Bearing
385AX-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 385AX-384XD Bearing Used?
You’ll often find 385AX-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 good fit for North American and UK machinery standards.

Built for Heavy-Duty Use: 385AX-384XD Bearing
In industrial gearboxes, 385AX-384XD Bearing offers reliable performance thanks to its open design and steel cage. The standard radial clearance allows for smooth operation in varying temperature conditions.

Automotive vs Aerospace: Applications of 385AX-384XD Bearing
While 385AX-384XD Bearing is popular in truck axles, it’s also suitable for aerospace ground support equipment. The ABEC-1 rating ensures adequate precision for these demanding environments.

Key Fields for 385AX-384XD Bearing
For agricultural machinery, 385AX-384XD Bearing provides long-lasting performance in tractors and harvesters. Its dynamic radial load capacity makes it ideal for high-stress applications.

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