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

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

The 389AS-383X is a single-row tapered roller bearing with a 2.125″ bore and 3.937″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 24200 lbf radially and 3810 lbf thrust, making it sturdy for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for various industrial conditions.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for applications like gearboxes, axles, or machinery where combined loads are common.

Weighing 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

The standard radial clearance (with options for C3/C4/C5) and ABEC-1 rating ensure dependable performance. Its tapered roller design provides efficient load distribution, reducing wear over time.

Perfect for maintenance or upgrades in industrial settings, this bearing balances strength and longevity. Its dimensions and tolerances make it a precise fit for compatible systems.

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Product Parameters

  • Part Number 389AS-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 3.937" x 1.0001"
  • 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 0.875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0001"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.050"
  • 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 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 1.8 lb

Features

Performance Features of 389AS-383X Bearing

389AS-383X Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty applications.

The tapered roller design ensures smooth operation and efficient load distribution.
With a standard radial clearance, it provides reliable performance in various conditions.

389AS-383X Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing wear and extending service life.

This bearing requires lubrication, but its robust construction minimises maintenance needs.
It is interchangeable with Timken bearings, offering flexibility for replacements.

Application

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

In automotive applications, 389AS-383X Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it a preferred choice for American vehicle models.

For industrial conveyors, 389AS-383X Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

What Makes 389AS-383X Bearing a Preferred Choice?
389AS-383X Bearing works efficiently in agricultural machinery, such as tractors, where its tapered rollers manage uneven loads smoothly. The standard radial clearance offers flexibility for various operating conditions.

In mining equipment, 389AS-383X Bearing’s robust design withstands harsh conditions, ensuring minimal downtime. Its compatibility with Timken models simplifies replacement and maintenance processes.

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