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TS (Single Row Tapered Roller Bearings) (Imperial) 398-394AS

TS (Single Row Tapered Roller Bearings) (Imperial) 398-394AS

The 398-394AS is a single-row tapered roller bearing with a 2″ bore and 4.3307″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf thrust-wise, suitable for moderate-speed applications.

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

Interchangeable with Timken models, it’s a practical choice for replacements in industrial settings. Ideal for gearboxes or machinery requiring reliable load support.

Weighing 2.2 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 398-394AS
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 4.3307" x 0.8661"
  • 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 0.7411"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8661"
  • 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 4.12"
  • Cup Backface Backing Diameter 3.90"
  • 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 394AS
  • 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 2.2 lb

Features

How Is 398-394AS Bearing Engineered for Reliability?

398-394AS Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, ensuring dependable performance in various applications.
The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

What Makes 398-394AS Bearing Suitable for Heavy-Duty Applications?

398-394AS Bearing features a single-row tapered roller design, ideal for handling combined radial and thrust loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 3,970 lbf at 90 million revolutions highlights its long-term reliability.
This bearing is compatible with Timken models, providing flexibility in replacements.

Designed for Durability: 398-394AS Bearing

398-394AS Bearing’s tapered roller design efficiently distributes loads, reducing stress on individual components.
The steel cage and chrome steel rollers work together to minimise wear, even under heavy loads.
With a static radial load capacity of 28,100 lbf, it excels in demanding industrial environments.
Its ABEC-1 rating ensures consistent precision for various applications.

Application

Industrial Uses of 398-394AS Bearing
The 398-394AS 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.

Where Is 398-394AS Bearing Used?
You’ll often find the 398-394AS Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American-made vehicles, offering reliable performance under radial and thrust loads.

Built for Heavy-Duty Use: 398-394AS Bearing
This bearing excels in industrial settings like conveyor systems, where its open design allows for easy lubrication and maintenance. The steel cage adds strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 398-394AS Bearing
In automotive systems, the 398-394AS Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary gearboxes. Its ABEC-1 rating ensures consistent performance across different environments.

Perfect Fit for Automation: 398-394AS Bearing
The 398-394AS Bearing works well in automated machinery, such as robotic arms, thanks to its precise taper roller design. Its standard radial clearance options make it adaptable to various operational needs.

Q&A

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