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

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

The 392-394D is a two-row tapered roller bearing with a 2.4375″ bore and 4.3307″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 38700 lbf and is designed for long-lasting performance.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 395 series and meets ABEC-1 standards, ensuring reliable precision. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 4.12 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH regulations for safe use.

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Product Parameters

  • Part Number 392-394D
  • 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 2.76"
  • 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 392
  • Cup Part Number 394D
  • 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 4.12 lb

Features

Performance Features of 392-394D Bearing

392-394D 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 enhances stability and load distribution.
This construction makes 392-394D Bearing suitable for applications requiring both radial and thrust load support.

With a standard radial clearance, it provides smooth operation across various conditions.
The steel cage maintains roller alignment, reducing wear and extending service life.

392-394D Bearing operates effectively within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance over time.

Application

Industrial Uses of 392-394D Bearing
The 392-394D 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 tough working conditions.

Where Is 392-394D Bearing Used?
You’ll often find the 392-394D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance under heavy loads. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 392-394D Bearing
In automotive applications, the 392-394D Bearing supports axle systems and wheel hubs, offering stability and load capacity. Its inch sizing makes it compatible with many North American vehicle models.

Automotive vs Aerospace: Applications of 392-394D Bearing
While the 392-394D Bearing excels in automotive axles, it’s also suitable for aerospace ground support equipment, where precision and reliability are key. The standard radial clearance ensures smooth operation in varied conditions.

Practical Applications of 392-394D Bearing
For industrial fans and pumps, the 392-394D Bearing’s tapered rollers reduce friction, improving efficiency. Its steel cage adds strength, making it a dependable choice for continuous operation.

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