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

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

The 388A-383A is a single-row tapered roller bearing with a 2.265″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 24200 lbf radially and 3810 lbf thrust, suitable for demanding applications.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing 1.5lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards for safe use.

The standard radial clearance ensures reliable performance, with options for C3, C4, or C5 available. Its ABEC-1 rating confirms consistent precision for general industrial use.

The tapered roller design efficiently handles both radial and thrust loads. Perfect for gearboxes, wheel hubs, or conveyor systems needing robust support.

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Product Parameters

  • Part Number 388A-383A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.265" x 3.937" x 0.8268"
  • 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 0.7018"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8268"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.08"
  • 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 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 1.500 lb

Features

Why Choose 388A-383A Bearing for Combined Loads?

388A-383A Bearing is crafted from chrome steel, offering excellent resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty applications.

The tapered roller design ensures smooth operation under combined loads, enhancing performance.
With a standard radial clearance, it provides flexibility for various industrial needs.

388A-383A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 388A-383A Bearing
The 388A-383A 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 even in demanding environments.

Where Is 388A-383A Bearing Used?
You’ll often find the 388A-383A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for vehicles following imperial measurement standards.

Built for Heavy-Duty Use: 388A-383A Bearing
This bearing excels in industrial settings like conveyor systems, 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-383A Bearing
In automotive systems, the 388A-383A Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary gearboxes. Its ABEC-1 rating ensures consistent performance across different industries.

Perfect Fit for Automation: 388A-383A Bearing
The 388A-383A Bearing works well in automated machinery, such as robotic arms, thanks to its precise tapered roller design. Its standard radial clearance offers flexibility for various operational needs.

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