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

The 399A-394AS is a single-row tapered roller bearing with a 2.6875″ bore and 4.3307″ outer diameter, crafted from sturdy chrome steel. It supports combined loads up to 22200 lbf radially and 3970 lbf thrust, making it versatile for various applications.

Its open design allows 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 1.6 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

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Description

Features

Application

Q&A

Product Parameters

Part Number 399A-394AS
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 0.130"
Cone Frontface Backing Diameter 3.54"
Cone Backface Backing Diameter 3.07"
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 399A
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 1.6 lb

Features

Performance Features of 399A-394AS Bearing

399A-394AS 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 wear and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

Why Choose 399A-394AS Bearing for Precision Tasks?

399A-394AS Bearing features a tapered roller design, providing precise load distribution and smooth operation.
The chrome steel construction enhances durability, even under high radial and thrust loads.
Its standard radial clearance ensures consistent performance in precision applications.
The open design allows for easy lubrication, maintaining efficiency over time.

Engineered for Reliability: 399A-394AS Bearing

399A-394AS Bearing’s single-row construction ensures stability and reliability in heavy-duty applications.
The chrome steel components resist wear, extending the bearing’s service life.
With a static radial load capacity of 28,100 lbf, it handles demanding conditions with ease.
The ABEC-1 rating guarantees consistent performance for industrial use.

Steel vs Ceramic Bearings: Strengths of 399A-394AS Bearing

399A-394AS Bearing uses chrome steel for both rollers and rings, offering excellent strength and durability.
Its dynamic thrust rating of 3,970 lbf ensures reliable performance under combined loads.
The steel cage provides robust support, maintaining alignment during operation.
This design is cost-effective while delivering reliable performance in various applications.

Application

Industrial Uses of 399A-394AS Bearing
The 399A-394AS Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in tough working conditions.

What Makes 399A-394AS Bearing a Preferred Choice?
In automotive applications, 399A-394AS Bearing fits well in wheel hubs and drivetrains, offering reliable performance under both radial and thrust loads. The inch sizing makes it a go-to option for American-made vehicles.

Built for Heavy-Duty Use: 399A-394AS Bearing
For industrial conveyor systems, 399A-394AS Bearing’s open design allows easy lubrication, reducing downtime in high-use environments. Its standard radial clearance ensures smooth operation without frequent adjustments.

Automotive vs Aerospace: Applications of 399A-394AS Bearing
While 399A-394AS Bearing excels in truck axles and heavy-duty transmissions, its precision also suits aerospace landing gear components. The steel cage provides stability under varying temperatures and loads.

Perfect Fit for Automation: 399A-394AS Bearing
In robotic arms and automated assembly lines, 399A-394AS Bearing’s tapered rollers ensure precise movement and load distribution. Its ABEC-1 rating balances performance and cost for industrial automation needs.