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

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

The 398-393A is a single-row tapered roller bearing with a 2-inch bore and 4.4375-inch outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf in 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 2.3 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 398-393A
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 4.4375" x 0.8751"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.625"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8751"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 4.15"
  • 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 393A
  • 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 2.3 lb

Features

Performance Features of 398-393A Bearing

398-393A 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 various environments.

Why Choose 398-393A Bearing for Precision Tasks?

398-393A Bearing’s tapered roller design provides precise load distribution, enhancing stability.
The standard radial clearance allows for smooth operation, suitable for ABEC-1 rated applications.
Its effective center location of -0.03″ ensures accurate alignment in assemblies.
Open seal type simplifies lubrication, making maintenance straightforward.

Engineered for Reliability: 398-393A Bearing

398-393A Bearing’s single-row construction ensures durability under heavy radial and thrust loads.
Chrome steel components resist wear, maintaining performance over extended periods.
The dynamic thrust rating of 3,970 lbf (Ca90) highlights its versatility.
With a weight of 2.3 lb, it balances strength and ease of handling.

Steel vs Ceramic Bearings: Strengths of 398-393A Bearing

398-393A Bearing’s chrome steel rollers provide excellent load-bearing capacity at a competitive cost.
Its steel cage offers robust support, ensuring long-term reliability in industrial applications.
The bearing’s standard radial clearance options (C3/C4/C5) cater to diverse operational needs.
Compliance with RoHS and REACH standards ensures environmental and safety adherence.

Application

Industrial Uses of 398-393A Bearing
The 398-393A Bearing is widely used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 398-393A Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial conveyor systems, 398-393A Bearing’s open design allows easy lubrication, extending service life in high-use scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 398-393A Bearing Used?
You’ll often find 398-393A Bearing in mining equipment, where its robust design handles heavy radial and thrust loads. The standard radial clearance ensures smooth operation even under intense conditions.

In manufacturing plants, 398-393A Bearing supports machinery like presses and gearboxes, thanks to its reliable performance. The ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 398-393A Bearing
The 398-393A Bearing excels in forestry equipment, where its tapered rollers manage uneven loads and shocks. Its chrome steel rollers and rings resist wear, reducing maintenance needs.

In material handling systems, 398-393A Bearing’s effective center location helps maintain alignment under dynamic loads. The steel cage ensures stability, even during prolonged use.

Automotive vs Aerospace: Applications of 398-393A Bearing
In automotive settings, 398-393A Bearing is a go-to for drivetrain components, offering durability and ease of maintenance. Its imperial sizing simplifies replacements in older vehicle models.

For aerospace ground support equipment, 398-393A Bearing provides reliable performance in load-handling systems. The temperature range suits both indoor and outdoor applications.

Q&A

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