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

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

The 398-394 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, 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.

Interchangeable with Timken models, it’s a reliable choice for replacements. 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, ensuring safe and eco-friendly use.

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Product Parameters

  • Part Number 398-394
  • 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 0.8661"
  • 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 0.03"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 4.21"
  • Cup Backface Backing Diameter 3.98"
  • 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 394
  • 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 398-394 Bearing

398-394 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 service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Is 398-394 Bearing Engineered for Reliability?

398-394 Bearing features precise cone and cup dimensions, ensuring smooth operation under heavy loads.
The tapered roller design distributes stress evenly, enhancing durability and reducing wear.
Its standard radial clearance allows for flexibility in different applications.
Lubrication is required to maintain optimal performance and longevity.

Built for Durability: 398-394 Bearing

398-394 Bearing’s chrome steel construction resists wear, making it suitable for heavy-duty use.
The single-row design simplifies installation while maintaining high load capacity.
With an ABEC-1 rating, it balances precision and cost-effectiveness.
Its open seal type allows for easy lubrication and maintenance.

Steel vs Ceramic Bearings: Strengths of 398-394 Bearing

398-394 Bearing uses chrome steel for both rollers and rings, providing excellent strength and durability.
The steel cage ensures stable roller movement, even under high radial and thrust loads.
Its dynamic thrust rating of 3,970 lbf makes it versatile for various applications.
The standard radial clearance option suits a wide range of operating conditions.

Why Choose 398-394 Bearing for Precision Tasks?

398-394 Bearing’s tapered roller design ensures accurate load distribution and smooth rotation.
The precise tolerances on bore and outer diameters enhance its fit and performance.
With a static radial load capacity of 28,100 lbf, it handles heavy loads reliably.
Its compatibility with Timken bearings makes it a practical choice for replacements.

Application

Industrial Uses of 398-394 Bearing
The 398-394 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in tough working conditions.

Where Is 398-394 Bearing Used?
You’ll often find the 398-394 Bearing in automotive applications like wheel hubs and differential systems, thanks to its ability to manage both radial and thrust loads. The inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 398-394 Bearing
In industrial settings like conveyor systems, the 398-394 Bearing’s robust design keeps operations smooth even under constant stress. The steel cage adds extra strength, making it reliable for long-term use.

Automotive vs Aerospace: Applications of 398-394 Bearing
While the 398-394 Bearing excels in automotive drivetrains, it’s also suitable for aerospace landing gear components where precision and load capacity matter. Its ABEC-1 rating ensures consistent performance.

Perfect Fit for Automation: 398-394 Bearing
The 398-394 Bearing works well in automated machinery, such as robotic arms, due to its precise load handling and smooth rotation. The open design allows for easy lubrication, reducing maintenance downtime.

Q&A

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