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

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

The 385AX-384D is a double-row tapered roller bearing with a 2″ bore and 3.937″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads well, with a dynamic radial load capacity of 42,200 lbf and a dynamic thrust rating of 3,810 lbf per row.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation even under heavy loads. The bearing operates reliably in temperatures ranging from -30°C to 110°C, making it suitable for various environments.

This bearing is ideal for industrial machinery, automotive applications, or heavy equipment where combined radial and thrust loads are common. With standard radial clearance and ABEC-1 precision, it offers a good balance of performance and affordability.

Weighing 3.72 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a practical choice for replacement or new installations. The double-row design provides extra stability compared to single-row alternatives.

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Product Parameters

  • Part Number 385AX-384D
  • 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 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 2.28"
  • 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 385AX
  • Cup Part Number 384D
  • 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 3.72 lb

Features

How Is 385AX-384D Bearing Engineered for Reliability?

385AX-384D 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 operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Performance Features of 385AX-384D Bearing

385AX-384D Bearing is built with precision tolerances, ensuring smooth operation under heavy loads.
The double-row design distributes stress evenly, enhancing its dynamic radial rating to 10,900 lbf for two rows.
Its open construction allows for easy lubrication, maintaining optimal performance.
The standard radial clearance offers flexibility for different application needs.

Why Choose 385AX-384D Bearing for Precision Tasks?

385AX-384D Bearing’s tapered roller design provides excellent load distribution, ideal for precision applications.
The chrome steel rollers and rings resist wear, ensuring consistent performance over time.
With an ABEC-1 rating, it balances precision and cost-effectiveness.
Its wide temperature range makes it suitable for diverse industrial environments.

Application

Industrial Uses of 385AX-384D Bearing
385AX-384D Bearing is commonly used in heavy machinery like construction equipment and mining drills, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 385AX-384D Bearing Used?
You’ll often find 385AX-384D Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American and British vehicle models, offering reliable performance under heavy loads.

Built for Heavy-Duty Use: 385AX-384D Bearing
385AX-384D Bearing excels in industrial gearboxes and conveyor systems, where its tapered roller design provides smooth operation. The open seal type allows for easy lubrication, extending its service life in high-use scenarios.

Automotive vs Aerospace: Applications of 385AX-384D Bearing
In automotive settings, 385AX-384D Bearing supports wheel assemblies, while in aerospace, it’s used in landing gear systems. Its robust design ensures stability under varying load conditions.

Practical Applications of 385AX-384D Bearing
385AX-384D Bearing is a solid choice for agricultural machinery like tractors and harvesters. The standard radial clearance and ABEC-1 rating make it versatile for both light and heavy-duty tasks.

Q&A

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