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TS (Single Row Tapered Roller Bearings) (Imperial) 390A-393C

TS (Single Row Tapered Roller Bearings) (Imperial) 390A-393C

The 390A-393C is a single-row tapered roller bearing with a 2.5″ bore and 4.468″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 2.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 390A-393C
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 4.468" x 0.931"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.468"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.806"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.931"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 2.76"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 4.02"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.03"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 390A
  • Cup Part Number 393C
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 395
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 22200 lbf
  • Static Radial Load 28100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5760 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3970 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 2.1 lb

Features

Performance Features of 390A-393C Bearing

390A-393C Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 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 varied environments.

390A-393C Bearing’s standard radial clearance provides flexibility for different applications.
Its ABEC-1 rating ensures consistent precision for industrial use.

Application

Industrial Uses of 390A-393C Bearing
390A-393C Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 390A-393C Bearing Used?
You’ll often find 390A-393C Bearing in automotive applications like wheel hubs and differential systems, thanks to its reliable performance under radial and thrust loads. Its inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 390A-393C Bearing
390A-393C Bearing excels in industrial fans and conveyor systems, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength for long-term use.

Automotive vs Aerospace: Applications of 390A-393C Bearing
In automotive settings, 390A-393C Bearing supports drivetrain components, while in aerospace, it’s used in auxiliary systems where precision and reliability are key. Its ABEC-1 rating ensures consistent performance.

Practical Applications of 390A-393C Bearing
390A-393C Bearing is a solid choice for mining equipment, where its dynamic load capacity handles harsh environments. The standard radial clearance offers flexibility for various operational needs.

Q&A

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