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TS (Single Row Tapered Roller Bearings) (Imperial) 388A-383X

TS (Single Row Tapered Roller Bearings) (Imperial) 388A-383X

The 388A-383X is a single-row tapered roller bearing with a 2.265″ 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 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 388A-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.265" x 3.937" x 1.0001"
  • Bore Dia 2.265"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 2.48"
  • Cone Backface Backing Diameter 2.76"
  • 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 388A
  • 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 Does 388A-383X Bearing Handle Combined Loads?

388A-383X 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.

Structural Advantages of 388A-383X Bearing

388A-383X Bearing features a single-row tapered roller design, optimised for combined load applications.
The chrome steel construction enhances durability, while the open seal type allows for easy lubrication.
Its effective centre location of -0.12″ ensures stable operation under heavy loads.
Standard radial clearance options provide flexibility for different installation needs.

Why Choose 388A-383X Bearing for Precision Tasks?

388A-383X Bearing’s tapered roller design ensures precise load distribution, reducing wear and tear.
The chrome steel rollers and rings provide excellent resistance to dynamic and static loads.
With an ABEC-1 rating, it balances precision and cost-effectiveness for various applications.
Its standard lubrication requirement simplifies maintenance without compromising performance.

Application

Industrial Uses of 388A-383X Bearing
The 388A-383X Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in tough working conditions.

Where Is 388A-383X Bearing Used?
You’ll often find the 388A-383X Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American-made vehicles, providing reliable performance under stress.

Built for Heavy-Duty Use: 388A-383X Bearing
This bearing excels in industrial settings, such as conveyor systems and gearboxes, where its open design allows for easy lubrication. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 388A-383X Bearing
In automotive systems, the 388A-383X Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary equipment. Its ABEC-1 rating ensures consistent performance across different industries.

Key Fields for 388A-383X Bearing
The 388A-383X Bearing is a popular choice for mining equipment, where its robust design handles radial and thrust loads. Its standard radial clearance options make it versatile for various industrial needs.

Q&A

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