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TS (Single Row Tapered Roller Bearings) (Imperial) 387W-383X

TS (Single Row Tapered Roller Bearings) (Imperial) 387W-383X

The 387W-383X is a single-row tapered roller bearing with a 2.25″ 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, gearboxes, 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, it’s a safe choice for diverse environments.

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Product Parameters

  • Part Number 387W-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 3.937" x 1.0001"
  • Bore Dia 2.25"
  • 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 2.44"
  • Cone Backface Backing Diameter 2.6"
  • 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 387W
  • 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

Engineered for Precision: 387W-383X Bearing

387W-383X Bearing features a single row tapered roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

With a dynamic radial load capacity of 24,200 lbf, 387W-383X Bearing delivers reliable performance under heavy loads.
The steel cage maintains proper roller alignment, enhancing efficiency and extending service life.

387W-383X Bearing operates smoothly within a temperature range of -30° to 110°C, suitable for various environments.
Its standard radial clearance options provide flexibility for different operational needs.

Designed for easy lubrication, 387W-383X Bearing reduces maintenance requirements while ensuring consistent performance.
The open seal type allows for straightforward inspection and servicing when needed.

387W-383X Bearing’s precise dimensions and tolerances ensure compatibility and reliable fit in imperial system applications.
Its ABEC-1 rating confirms consistent quality for general industrial use.

Application

Industrial Uses of 387W-383X Bearing
387W-383X Bearing is commonly used in heavy machinery, such as construction equipment and agricultural vehicles, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 387W-383X Bearing Used?
You’ll often find 387W-383X Bearing in automotive applications like truck wheel hubs, where its ability to manage radial and thrust loads keeps things running smoothly. The imperial sizing makes it a good fit for North American machinery.

Built for Heavy-Duty Use: 387W-383X Bearing
387W-383X Bearing excels in industrial gearboxes, providing reliable performance under high stress. Its open design allows for easy lubrication, extending service life in continuous operation settings.

Automotive vs Aerospace: Applications of 387W-383X Bearing
In automotive systems, 387W-383X Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary equipment where precision and reliability are key. The steel cage adds stability under varying temperatures.

Perfect Fit for Automation: 387W-383X Bearing
387W-383X Bearing works well in automated conveyor systems, thanks to its tapered rollers that reduce friction. The standard radial clearance ensures smooth operation in repetitive motion applications.

Q&A

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