+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
386AX-384D TDO (Two-Row Double-Outer Race) (Imperial)

386AX-384D TDO (Two-Row Double-Outer Race) (Imperial)

The 386AX-384D is a double-row tapered roller bearing with a 1.875″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 35600 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 from -30°C to 110°C, making it versatile for various conditions.

This model is part of the 385 series and comes with standard cups for easy installation. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 3.890 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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

Product Parameters

  • Part Number 386AX-384D
  • Brand TFL
  • Size 1.875" x 3.937" x 0.864"
  • Bore Dia 1.875"
  • 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 2.2"
  • Cup Frontface Backing Diameter 3.68"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 35600 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 386AX
  • 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) 5300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3210 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 9230 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 3.890 lb

Features

How Is 386AX-384D Bearing Engineered for Reliability?

386AX-384D Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, even under heavy loads of up to 35,600 lbf.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a standard radial clearance and ABEC-1 rating, it offers consistent performance in various applications.

What Makes 386AX-384D Bearing Suitable for High-Temperature Applications?

386AX-384D Bearing operates efficiently within a temperature range of -30° to 110°C, making it suitable for demanding environments.
The chrome steel rings and rollers resist wear, ensuring reliable performance under thermal stress.
Its open design allows for easy lubrication, maintaining smooth operation in high-heat conditions.
The bearing’s robust construction minimises maintenance needs, even in challenging settings.

Built for Durability: 386AX-384D Bearing

386AX-384D Bearing’s double-row tapered roller design enhances load distribution, reducing wear over time.
The chrome steel components provide excellent resistance to fatigue, extending the bearing’s service life.
With a dynamic radial load capacity of 35,600 lbf, it handles heavy-duty applications with ease.
Its standard radial clearance ensures reliable performance across various operating conditions.

Steel vs Ceramic Bearings: Strengths of 386AX-384D Bearing

386AX-384D Bearing’s chrome steel construction offers a balance of strength and affordability compared to ceramic alternatives.
The steel rollers and rings provide reliable performance under heavy loads, up to 35,600 lbf.
Its tapered roller design ensures efficient load distribution, reducing stress on individual components.
The bearing’s open design simplifies lubrication, enhancing its longevity in demanding applications.

Application

Industrial Uses of 386AX-384D Bearing
386AX-384D 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 harsh environments, making it a reliable choice for long-term use.

Where Is 386AX-384D Bearing Used?
You’ll often find 386AX-384D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads.
The inch sizing makes it compatible with many North American vehicles, simplifying maintenance and replacements.

Built for Heavy-Duty Use: 386AX-384D Bearing
386AX-384D Bearing excels in industrial gearboxes, offering smooth operation even under high stress.
Its open design allows for easy lubrication, which helps extend the bearing’s service life in demanding conditions.

Automotive vs Aerospace: Applications of 386AX-384D Bearing
In automotive systems, 386AX-384D Bearing supports heavy loads in axles and differentials, while in aerospace, it’s used in landing gear mechanisms.
The bearing’s standard radial clearance ensures consistent performance across different applications.

Q&A

SEND INQUIRY