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

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

The 385-384DC is a double-row tapered roller bearing with a 2.1654″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 42200 lbf and is designed for long-lasting performance.

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

This model features a standard radial clearance and is ABEC-1 rated for reliable precision. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 3.45 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 385-384DC
  • Brand TFL
  • Size 2.1654" x 3.937" x 0.864"
  • Bore Dia 2.1654"
  • 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 385
  • 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 3.45 lb

Features

How Is 385-384DC Bearing Engineered for Reliability?

385-384DC 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 friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

What Makes 385-384DC Bearing Suitable for High-Temperature Applications?

385-384DC Bearing is built to withstand temperatures from -30° to 110°C, making it versatile for different environments.
The chrome steel rings and rollers enhance heat resistance, ensuring consistent performance.
Its open design allows for easy lubrication, further improving high-temperature reliability.
The double-row construction distributes loads evenly, reducing heat buildup.

Designed for Durability: 385-384DC Bearing

385-384DC Bearing’s double-row tapered rollers handle high radial and thrust loads efficiently.
The chrome steel components resist wear, ensuring a long service life even under heavy use.
Its standard radial clearance options (C3/C4/C5) allow for flexibility in various applications.
With a weight of 3.45 lb, it balances strength and practicality.

Application

Industrial Uses of 385-384DC Bearing
The 385-384DC 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, making it a reliable choice for industrial applications.

Where Is 385-384DC Bearing Used?
You’ll often find the 385-384DC Bearing in automotive systems like truck wheel hubs, where its tapered roller design provides stability under heavy loads.
The inch sizing makes it compatible with many North American vehicle models, offering versatility for mechanics and engineers.

Built for Heavy-Duty Use: 385-384DC Bearing
In agricultural machinery, the 385-384DC Bearing supports components like tractor transmissions, thanks to its robust steel cage and high dynamic load capacity.
The open seal type allows for easy lubrication, extending its lifespan in dusty or wet conditions.

Automotive vs Aerospace: Applications of 385-384DC Bearing
While the 385-384DC Bearing excels in automotive applications like differential systems, its precision also suits aerospace ground support equipment.
The standard radial clearance ensures smooth operation in both high-speed and high-load scenarios.

Key Fields for 385-384DC Bearing
The 385-384DC Bearing is ideal for rail and marine applications, where its combined load handling meets the demands of rolling stock and ship machinery.
Its temperature range of -30° to 110°C ensures performance in varying climates, from Arctic ports to tropical waters.

Q&A

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