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392A-394DC TDO (Two-Row Double-Outer Race) (Imperial)

392A-394DC TDO (Two-Row Double-Outer Race) (Imperial)

The 392A-394DC is a two-row tapered roller bearing with a 2.4375″ bore and 4.3307″ outer diameter, built from sturdy chrome steel for combined load handling. It supports dynamic radial loads up to 38700 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its double-row design offers balanced load distribution, while the open seal allows easy lubrication. The steel cage ensures durability, and standard radial clearance simplifies installation.

This bearing is ideal for heavy-duty applications like truck axles or industrial gearboxes where combined loads are common. With ABEC-1 precision, it balances performance and affordability.

Weighing 4.11 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new builds.

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Product Parameters

  • Part Number 392A-394DC
  • Brand TFL
  • Size 2.4375" x 4.3307" x 0.866"
  • Bore Dia 2.4375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3307"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.8125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.866"
  • 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 2.99"
  • Cup Frontface Backing Diameter 4.12"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 38700 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 392A
  • Cup Part Number 394DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 395
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 5760 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3970 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10000 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 4.11 lb

Features

Performance Features of 392A-394DC Bearing

392A-394DC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 38,700 lbf, ensuring reliable performance in heavy-duty applications.
The double-row tapered roller design distributes loads evenly, enhancing durability and stability.
With a standard radial clearance, it provides smooth operation across various conditions.

How Is 392A-394DC Bearing Engineered for Reliability?

392A-394DC Bearing features a steel cage that maintains roller alignment, reducing friction and wear.
The chrome steel construction resists corrosion, extending the bearing’s service life in harsh environments.
Its double-row design handles both radial and thrust loads efficiently.
Operating within a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

Built for Durability: 392A-394DC Bearing

392A-394DC Bearing’s tapered roller design ensures even load distribution, minimising stress on components.
The chrome steel materials provide excellent wear resistance, suitable for high-load applications.
With a dynamic radial rating of 10,000 lbf for two rows, it delivers consistent performance.
Its standard radial clearance allows for smooth operation in various industrial settings.

Steel vs Ceramic Bearings: Strengths of 392A-394DC Bearing

392A-394DC Bearing uses chrome steel for both rings and rollers, offering high strength and durability.
This material choice ensures reliable performance under heavy combined loads and harsh conditions.
The steel cage design maintains proper roller alignment, reducing operational noise.
With a wide temperature range, it remains functional in diverse environments.

Application

Industrial Uses of 392A-394DC Bearing
The 392A-394DC 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. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 392A-394DC Bearing supports drivetrain components like differentials and wheel hubs, providing reliable performance under high stress. The inch sizing makes it a preferred choice for American and British vehicle manufacturers.

For industrial automation, 392A-394DC Bearing’s tapered roller design offers smooth operation in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life in continuous-use scenarios.

Medical equipment also benefits from 392A-394DC Bearing’s precision, particularly in imaging devices where consistent movement is critical. The standard radial clearance ensures minimal vibration during operation.

In consumer electronics, 392A-394DC Bearing can be found in high-performance fans and power tools, where its robust build handles moderate loads with ease. The steel cage adds an extra layer of reliability for everyday use.

Q&A

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