+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
385A-384D TDO (Two-Row Double-Outer Race) (Imperial)

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

The 385A-384D is a two-row tapered roller bearing with a 2″ bore and 3.9370″ outer diameter, built from sturdy chrome steel. It handles combined loads with a dynamic radial capacity of 42200 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 loads. The double-row construction provides stability, making it suitable for high-stress applications.

This bearing is ideal for industrial machinery or automotive systems where both radial and thrust loads are present. It meets ABEC-1 standards and comes with standard radial clearance, though other options are available.

Weighing 3.71 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH regulations, it’s a reliable option for replacements or new installations.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 385A-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 2.4"
  • 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 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 3.71 lb

Features

Engineered for Reliability: 385A-384D Bearing

385A-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 standard open design allows for easy lubrication, maintaining smooth operation in various conditions.
With a temperature range of -30° to 110°C, it performs reliably in diverse environments.

385A-384D Bearing’s precise tolerances ensure consistent performance and extended service life.
The steel cage keeps rollers aligned, reducing wear and improving efficiency.

Application

Industrial Uses of 385A-384D Bearing
385A-384D Bearing is commonly used in heavy machinery, such as construction equipment and mining drills, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in tough working conditions.
In automotive applications, 385A-384D Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it a preferred choice for American and British vehicle models.

What Makes 385A-384D Bearing a Preferred Choice?
385A-384D Bearing works smoothly in conveyor systems, thanks to its tapered roller design that reduces friction during operation. The open seal type allows for easy lubrication, extending its service life.
For agricultural machinery, 385A-384D Bearing supports heavy loads in tractors and harvesters, ensuring consistent performance in dusty environments. The steel cage adds extra strength to withstand frequent use.

Built for Heavy-Duty Use: 385A-384D Bearing
385A-384D Bearing is ideal for industrial fans and pumps, where its high dynamic radial load capacity keeps operations running smoothly. The standard radial clearance offers flexibility for different installation needs.
In material handling equipment, 385A-384D Bearing’s robust design handles repetitive stress without compromising performance. The ABEC-1 rating ensures adequate precision for most general applications.

Automotive vs Aerospace: Applications of 385A-384D Bearing
385A-384D Bearing is widely used in truck axles, where its combined load capacity supports heavy payloads. The inch measurements make it compatible with many commercial vehicle standards.
In aerospace ground equipment, 385A-384D Bearing assists in landing gear testing rigs, offering reliable performance under controlled conditions. The temperature range suits various operational environments.

Q&A

SEND INQUIRY