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The 399A single cones are imperial-sized tapered roller bearings with a 2.6875″ bore, designed for combined loads. Made from chrome steel, they handle dynamic radial loads up to 22200 lbf and static loads up to 28100 lbf.
Their single-row construction and open design allow for easy maintenance, while the steel cage ensures durability. The bearings operate smoothly in temperatures ranging from -30°C to 110°C.
Interchangeable with Timken models, these cones are a reliable choice for replacements. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.
Compliant with RoHS and REACH standards, they offer a balance of strength and performance. Available in standard radial clearance, with options for C3, C4, or C5 fits.
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How Does 399A Bearing Handle Combined Loads?
399A Bearing is crafted with chrome steel rings, offering strong resistance to both radial and thrust 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 the bearing’s service life.
With a temperature range of -30° to 110°C, it performs well in various environments.
What Makes 399A Bearing Suitable for Heavy-Duty Applications?
399A Bearing features a tapered roller design, ideal for handling combined loads efficiently.
The chrome steel construction provides durability, while the steel cage ensures smooth operation.
Its dynamic thrust rating of 3,970 lbf makes it suitable for high-stress applications.
The standard radial clearance allows for flexibility in different operational conditions.
Engineered for Precision: 399A Bearing
399A Bearing’s single-row construction ensures precise load distribution and reduced friction.
The effective center location of -0.03″ enhances alignment accuracy in assembly.
With an ABEC-1 rating, it meets standard precision requirements for industrial use.
The cone width tolerance of +0.003″ to -0.01″ ensures consistent performance.
Why Choose 399A Bearing for Industrial Use?
399A Bearing’s open design simplifies installation and maintenance, saving time and effort.
The tapered rollers and chrome steel material provide excellent wear resistance.
Its dynamic radial rating of 38,700 lbf for two-row configurations highlights its versatility.
Compliant with RoHS and REACH, it meets environmental and safety standards.
Industrial Uses of 399A Bearing
The 399A Bearing is commonly used in heavy machinery, such as construction equipment and mining gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in tough working conditions.
Where Is 399A Bearing Used?
You’ll often find 399A Bearing in automotive applications like truck wheel hubs, where its high dynamic radial load capacity keeps things running smoothly. The inch sizing makes it a good fit for older or custom-built vehicles.
Built for Heavy-Duty Use: 399A Bearing
This bearing works well in agricultural machinery, supporting heavy loads in tractors and harvesters. The open seal design allows for easy lubrication, which is handy in dusty environments.
Automotive vs Aerospace: Applications of 399A Bearing
In automotive settings, 399A Bearing excels in axle systems, while its precision also suits some aerospace components. The steel cage adds extra strength for high-stress situations.
Key Fields for 399A Bearing
Railway applications benefit from 399A Bearing’s ability to handle both radial and thrust loads. Its standard radial clearance makes it versatile for various railcar designs.
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