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

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

The 385A-384DC is a double-row tapered roller bearing with a 2-inch bore and 3.937-inch outer diameter, built from sturdy chrome steel. It handles combined loads with a dynamic radial capacity of 42,200 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing is designed for standard radial clearance but can also be ordered in C3, C4, or C5 grades for specific needs.

This model is ideal for industrial machinery or vehicle axles where high radial and thrust loads are common. With an ABEC-1 rating, it offers reliable precision for general applications.

Weighing 3.71 lbs, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it’s a safe and dependable option for replacements or new installations.

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Product Parameters

  • Part Number 385A-384DC
  • 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 2.4"
  • 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 385A
  • 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 3.71 lb

Features

Performance Features of 385A-384DC Bearing

385A-384DC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 42,200 lbf, ensuring reliable performance in demanding conditions.

The double-row tapered roller design enhances load distribution, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various applications.

385A-384DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to consistent performance.

The open seal design allows for easy lubrication, ensuring optimal functionality.
This bearing is ideal for heavy-duty applications requiring durability and precision.

Application

Industrial Uses of 385A-384DC Bearing
385A-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. The chrome steel construction ensures durability in demanding environments.

Where Is 385A-384DC Bearing Used?
You’ll often find 385A-384DC 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 vehicle standards.

Built for Heavy-Duty Use: 385A-384DC Bearing
385A-384DC Bearing excels in industrial gearboxes, offering reliable performance even under high stress. Its open design allows for easy lubrication, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 385A-384DC Bearing
In automotive settings, 385A-384DC Bearing supports axles and differentials, while in aerospace, it’s used in landing gear systems. The bearing’s ABEC-1 rating ensures consistent precision across both fields.

Practical Applications of 385A-384DC Bearing
For conveyor systems, 385A-384DC Bearing provides smooth rotation under heavy loads. Its steel cage and rollers are designed to withstand prolonged use without compromising performance.

Q&A

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