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TS (Single Row Tapered Roller Bearings) (Imperial) 389-383X

TS (Single Row Tapered Roller Bearings) (Imperial) 389-383X

The 389-383X is a single-row tapered roller bearing with a 2.188″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 24200 lbf radially and 3810 lbf thrust, making it versatile for various applications.

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 interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery or automotive systems where combined loads are common.

Weighing 1.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 389-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.188" x 3.937" x 1.0001"
  • Bore Dia 2.188"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.864"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0001"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.56"
  • Cup Frontface Backing Diameter 3.68"
  • Cup Backface Backing Diameter 3.50"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.12"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 389
  • Cup Part Number 383X
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 385
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 24200 lbf
  • Static Radial Load 24100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6280 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3810 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 1.7 lb

Features

How Is 389-383X Bearing Engineered for Reliability?

389-383X Bearing features chrome steel rings and rollers, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty applications.

The tapered roller design enhances load distribution, reducing stress on individual components.
With a standard radial clearance, it maintains consistent performance across various operating conditions.

389-383X Bearing operates within a temperature range of -30° to 110°C, adapting to diverse environments.
Its steel cage keeps rollers aligned, promoting smooth operation and extended service life.

Application

Industrial Uses of 389-383X Bearing
The 389-383X Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in tough working conditions.

Where Is 389-383X Bearing Used?
You’ll often find 389-383X Bearing in automotive axles and wheel hubs, providing reliable performance under radial and thrust loads. The inch sizing makes it a good fit for North American vehicle designs.

Built for Heavy-Duty Use: 389-383X Bearing
389-383X Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength for long-term use.

Automotive vs Aerospace: Applications of 389-383X Bearing
In automotive systems, 389-383X Bearing supports drivetrain components, while in aerospace, it’s used in auxiliary equipment due to its precise load handling. The temperature range suits both environments well.

Essential Roles of 389-383X Bearing
389-383X Bearing is a go-to for conveyor systems and mining equipment, where its robust design handles high loads smoothly. The standard radial clearance offers flexibility for various applications.

Q&A

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