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TS (Single Row Tapered Roller Bearings) (Imperial) 398-393

TS (Single Row Tapered Roller Bearings) (Imperial) 398-393

The 398-393 is a single row tapered roller bearing with a 2″ bore and 4.3307″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 22200 lbf radially and 3970 lbf thrust, suitable for demanding applications.

Its open design allows for 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 2.6 lb, it offers a robust build for its size. Compliant with RoHS and REACH standards, it’s a reliable option for various industrial uses.

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Product Parameters

  • Part Number 398-393
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 4.3307" x 1.063"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3307"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.063"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.063"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 4.21"
  • Cup Backface Backing Diameter 3.94"
  • 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 398
  • Cup Part Number 393
  • 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 2.6 lb

Features

Performance Features of 398-393 Bearing

398-393 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 tough 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.

398-393 Bearing requires lubrication but offers standard radial clearance options for flexibility.
Its ABEC-1 rating ensures consistent precision for industrial applications.

Application

Industrial Uses of 398-393 Bearing
The 398-393 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 tough working conditions.

In automotive applications, 398-393 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it a popular choice for American-made vehicles.

For industrial fans and pumps, 398-393 Bearing’s open design allows for easy lubrication, extending its service life. The standard radial clearance offers flexibility for various operational needs.

Where Is 398-393 Bearing Used?
You’ll often find 398-393 Bearing in conveyor systems, where its ability to handle heavy loads keeps production lines running smoothly. The steel cage adds extra strength for long-term use.

In mining equipment, 398-393 Bearing stands up to harsh environments thanks to its robust chrome steel rollers. The ABEC-1 rating ensures consistent performance without over-engineering.

Built for Heavy-Duty Use: 398-393 Bearing
This bearing excels in gearboxes and drivetrains, where its tapered rollers manage both radial and axial forces. The inch measurements make it easy to replace in existing setups.

For forestry machinery, 398-393 Bearing’s durability is a key advantage. The open seal design simplifies maintenance, even in dusty or wet conditions.

Automotive vs Aerospace: Applications of 398-393 Bearing
In automotive systems, 398-393 Bearing is a go-to for wheel assemblies, balancing load capacity and compact design. Its compatibility with Timken models adds to its versatility.

For aerospace ground equipment, 398-393 Bearing provides reliable performance in tow tractors and loaders. The temperature range suits most operational environments.

Q&A

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