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389AS-384ED TDO (Two-Row Double-Outer Race) (Imperial)

389AS-384ED TDO (Two-Row Double-Outer Race) (Imperial)

The 389AS-384ED is a double-row tapered roller bearing with a 2.125″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads, with a dynamic radial capacity of 42200 lbf and a thrust rating of 3810 lbf per row.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 385 series, featuring standard cups and a standard radial clearance. It’s compliant with RoHS and REACH standards for safe industrial use.

Ideal for heavy machinery or automotive applications where combined loads are common. Weighing 3.32 lb, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number 389AS-384ED
  • Brand TFL
  • Size 2.125" x 3.937" x 0.864"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.562"
  • 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 1.9369"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.44"
  • 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 389AS
  • Cup Part Number 384ED
  • 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 3.32 lb

Features

Performance Features of 389AS-384ED Bearing

389AS-384ED 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 heavy-duty applications.

The double-row tapered roller design of 389AS-384ED Bearing provides stability and even load distribution.
This construction helps reduce wear and extends the bearing’s operational life.

389AS-384ED Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, maintaining smooth performance over time.

With standard radial clearance options, 389AS-384ED Bearing suits various industrial needs.
The steel cage ensures proper roller alignment, enhancing durability and reducing maintenance.

Application

Industrial Uses of 389AS-384ED Bearing
389AS-384ED Bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 389AS-384ED Bearing supports wheel hubs and drivetrains, providing reliable performance under varying loads. Its inch sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, 389AS-384ED Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The standard radial clearance also ensures smooth operation under continuous loads.

Where Is 389AS-384ED Bearing Used?
You’ll often find 389AS-384ED Bearing in agricultural machinery, where its tapered roller design handles uneven loads with ease. The steel cage adds extra strength for long-lasting performance.

In mining equipment, 389AS-384ED Bearing’s robust construction withstands harsh conditions, making it a reliable choice for heavy-duty applications. The ABEC-1 rating ensures consistent precision even under stress.

Built for Heavy-Duty Use: 389AS-384ED Bearing
389AS-384ED Bearing excels in forestry equipment, where its combined load capacity manages both radial and axial forces effortlessly. The inch measurements simplify replacements in older machinery.

For railway applications, 389AS-384ED Bearing’s temperature range (-30° to 110°C) ensures reliability in varying climates. The open seal type allows for easy maintenance during routine checks.

Automotive vs Aerospace: Applications of 389AS-384ED Bearing
In automotive systems, 389AS-384ED Bearing supports differentials and axles, offering smooth performance under heavy loads. Its chrome steel rollers reduce wear over time.

For aerospace ground equipment, 389AS-384ED Bearing’s precision handling of combined loads makes it suitable for tow tractors and loading vehicles. The standard radial clearance ensures consistent operation.

Q&A

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