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

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

The 385AS-384D is a two-row tapered roller bearing with a 2″ bore and 3.937″ outer diameter, built from sturdy chrome steel for heavy-duty use. It handles combined loads up to 35,600 lbf and works well in temperatures from -30°C to 110°C.

Its double-row design provides extra stability, while the open seal allows easy lubrication. The steel cage ensures smooth operation even under high radial or thrust loads.

This bearing is ideal for industrial machinery or vehicle axles where both radial and thrust loads are present. Its standard radial clearance and ABEC-1 rating make it a versatile choice for various applications.

Weighing 3.72 lb, it’s robust yet manageable for installation. Compliant with RoHS and REACH standards, it’s a reliable option for replacements or new builds.

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Product Parameters

  • Part Number 385AS-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 2.36"
  • 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 385AS
  • 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 3.72 lb

Features

Performance Features of 385AS-384D Bearing

385AS-384D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 35,600 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.
With a standard radial clearance, it provides smooth operation across various conditions.

385AS-384D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to a longer service life.

The open seal design allows for easy lubrication, ensuring consistent performance.
This bearing is ideal for applications requiring robust load handling and precision.

Application

Industrial Uses of 385AS-384D Bearing
385AS-384D 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 in demanding environments.

Where Is 385AS-384D Bearing Used?
You’ll often find 385AS-384D Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American and British vehicle models.

Built for Heavy-Duty Use: 385AS-384D Bearing
In industrial conveyor systems, 385AS-384D Bearing provides reliable performance under continuous operation. The open seal design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 385AS-384D Bearing
While 385AS-384D Bearing is popular in trucks and buses for its load capacity, it’s also used in some aerospace ground support equipment. The tapered roller design offers stability under varying loads.

Essential Roles of 385AS-384D Bearing
For agricultural machinery, 385AS-384D Bearing supports components like gearboxes and PTO shafts. Its standard radial clearance ensures smooth operation in dusty or muddy conditions.

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