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

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

The 387W-383 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 or automotive systems where combined loads are common.

Weighing 1.5 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 387W-383
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 3.937" x 0.8268"
  • 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 0.8268"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8268"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 2.44"
  • Cone Backface Backing Diameter 2.6"
  • Cup Frontface Backing Diameter 3.70"
  • 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 383
  • 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 1.500 lb

Features

How Does 387W-383 Bearing Handle Combined Loads?

387W-383 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 24,200 lbf, ensuring reliable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

What Makes 387W-383 Bearing Durable?

387W-383 Bearing features precision-engineered tapered rollers for even load distribution, enhancing durability.
The chrome steel construction resists wear, making it suitable for heavy-duty applications.
Its standard radial clearance ensures smooth operation, reducing maintenance needs.
Designed for combined loads, it balances strength and longevity effectively.

Engineered for Precision: 387W-383 Bearing

387W-383 Bearing’s single-row tapered roller design provides accurate load handling.
The chrome steel components ensure consistent performance under high stress.
With an ABEC-1 rating, it meets precision requirements for various industrial uses.
Its effective center location of -0.12″ optimises alignment and reduces operational strain.

Steel vs Ceramic Bearings: Strengths of 387W-383 Bearing

387W-383 Bearing uses chrome steel for both rings and rollers, offering robust strength.
This material choice ensures reliable performance in high-load and high-temperature conditions.
The steel cage design enhances stability, keeping rollers in place during operation.
Its compatibility with Timken models makes it a versatile choice for replacements.

Application

Industrial Uses of 387W-383 Bearing
387W-383 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.

In automotive applications, 387W-383 Bearing fits well in wheel hubs and drivetrains, providing reliable performance under both radial and thrust loads. Its inch sizing makes it a go-to choice for American-made vehicles.

For industrial conveyors, 387W-383 Bearing’s open design simplifies lubrication, extending service life in high-load scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 387W-383 Bearing Used?
You’ll often find 387W-383 Bearing in mining equipment, where its robust design withstands harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In power transmission systems, 387W-383 Bearing supports shafts and gears, ensuring smooth rotation. Its ABEC-1 rating offers a balance of precision and affordability for general industrial use.

Built for Heavy-Duty Use: 387W-383 Bearing
387W-383 Bearing excels in applications like forklifts and cranes, where its high dynamic load capacity is crucial. The standard radial clearance allows for easy installation and adjustment.

In pulp and paper machinery, 387W-383 Bearing’s temperature tolerance ensures stable performance. The steel cage and chrome steel rollers provide long-lasting reliability.

Automotive vs Aerospace: Applications of 387W-383 Bearing
In automotive systems, 387W-383 Bearing handles the rigorous demands of wheel assemblies and differentials. Its inch measurements align with many US-manufactured components.

For aerospace ground equipment, 387W-383 Bearing offers dependable performance in auxiliary systems. While not for flight use, it’s trusted in support machinery.

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