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TS (Single Row Tapered Roller Bearings) (Imperial) 399A-394A

TS (Single Row Tapered Roller Bearings) (Imperial) 399A-394A

The 399A-394A is a single-row tapered roller bearing with a 2.6875″ bore and 4.3307″ 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 1.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments.

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Product Parameters

  • Part Number 399A-394A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.6875" x 4.3307" x 0.8661"
  • Bore Dia 2.6875"
  • 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 0.09"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 3.54"
  • Cone Backface Backing Diameter 3.07"
  • Cup Frontface Backing Diameter 4.15"
  • 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 399A
  • Cup Part Number 394A
  • 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 1.7 lb

Features

Performance Features of 399A-394A Bearing

399A-394A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 399A-394A Bearing Resist Wear?

399A-394A Bearing’s tapered roller design distributes loads evenly, minimising wear over time.
The chrome steel construction enhances durability, even under high radial or thrust loads.
Its standard radial clearance options allow for flexibility in different applications.
Regular lubrication ensures smooth operation and prolonged service life.

Engineered for Precision: 399A-394A Bearing

399A-394A Bearing features precise cone and cup dimensions for accurate alignment in assemblies.
The effective center location of -0.03″ ensures proper load distribution across the rollers.
With ABEC-1 rating, it maintains consistent performance in industrial applications.
The open design simplifies inspection and maintenance procedures.

Application

Industrial Uses of 399A-394A Bearing
The 399A-394A Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 399A-394A Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 399A-394A Bearing’s open design allows for easy lubrication, extending its service life. The steel cage adds strength, making it suitable for high-load scenarios.

What Makes 399A-394A Bearing a Preferred Choice?
The 399A-394A Bearing is often chosen for agricultural machinery due to its ability to withstand dirt and debris. Its standard radial clearance offers flexibility in various operating conditions.

In mining equipment, 399A-394A Bearing’s robust design ensures smooth operation even under extreme loads. The ABEC-1 rating provides a balance of precision and cost-effectiveness for industrial use.

Built for Heavy-Duty Use: 399A-394A Bearing
The 399A-394A Bearing excels in forestry machinery, where its tapered rollers manage uneven loads effortlessly. Its temperature range of -30° to 110°C ensures reliability in diverse climates.

For material handling systems, 399A-394A Bearing’s dynamic radial load capacity of 22200 lbf makes it a dependable choice. The steel cage enhances stability during continuous operation.

Automotive vs Aerospace: Applications of 399A-394A Bearing
In automotive drivetrains, 399A-394A Bearing handles high torque and radial loads efficiently. Its inch measurements align with many standard vehicle designs.

For aerospace ground support equipment, 399A-394A Bearing’s chrome steel rollers provide consistent performance. The open seal type simplifies maintenance in critical applications.

Q&A

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