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

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

The 389AS-383A is a single-row tapered roller bearing with a 2.125″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 24200 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 use. The bearing is interchangeable with Timken models, making it a practical choice for replacements.

This bearing is ideal for applications like automotive axles or industrial gearboxes where combined loads are common. Its standard radial clearance and ABEC-1 rating ensure reliable performance.

Weighing 1.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable option for various mechanical needs.

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Product Parameters

  • Part Number 389AS-383A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 3.937" x 0.8269"
  • Bore Dia 2.125"
  • 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 0.7018"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8269"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 2.36"
  • Cone Backface Backing Diameter 2.44"
  • 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 389AS
  • Cup Part Number 383A
  • 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 1.6 lb

Features

Performance Features of 389AS-383A Bearing

389AS-383A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, ensuring reliable performance in heavy-duty applications.

The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

389AS-383A Bearing requires lubrication for optimal performance and longevity.
Its standard radial clearance makes it versatile for different industrial applications.

Application

Industrial Uses of 389AS-383A Bearing
389AS-383A Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 389AS-383A Bearing Used?
You’ll often find 389AS-383A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for vehicles using imperial measurements.

Built for Heavy-Duty Use: 389AS-383A Bearing
389AS-383A Bearing excels in industrial conveyor systems, thanks to its ability to manage both radial and thrust loads. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 389AS-383A Bearing
In automotive settings, 389AS-383A Bearing supports drivetrain components, while in aerospace, it’s used in auxiliary systems where precision and reliability are key. The ABEC-1 rating ensures consistent performance.

Key Fields for 389AS-383A Bearing
389AS-383A Bearing is ideal for mining equipment, where its robust design withstands harsh conditions. The standard radial clearance option allows for easy integration into various machinery setups.

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