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The 387A is a single-row tapered roller bearing with a 2.25″ bore, designed for combined loads and made from durable chrome steel. It handles dynamic radial loads up to 24200 lbf and operates smoothly in temperatures from -30°C to 110°C.
Its open design allows easy maintenance, while the steel cage ensures reliable performance. The bearing comes in various part numbers, making it versatile for different setups.
This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for heavy-duty applications like truck axles or industrial gearboxes where combined loads are common.
Compliant with RoHS and REACH standards, it’s a safe and robust choice for demanding environments. The standard radial clearance can also be adjusted to C3, C4, or C5 for specific needs.
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How Does 387A Bearing Handle Combined Loads?
387A Bearing is built with chrome steel rings and a steel cage, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 24,200 lbf, ensuring reliable performance in demanding conditions.
The tapered roller design distributes loads evenly, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.
Why Choose 387A Bearing for Precision Tasks?
387A Bearing features a single-row tapered roller design, providing precise alignment and smooth operation.
The chrome steel construction enhances durability, while the steel cage maintains roller positioning.
Its dynamic thrust rating of 3,810 lbf ensures consistent performance under combined loads.
The standard radial clearance option allows for flexibility in different applications.
Engineered for Reliability: 387A Bearing
387A Bearing’s chrome steel rings and tapered rollers ensure long-lasting performance under heavy loads.
The steel cage design minimises friction, promoting smooth operation and reduced maintenance.
With an ABEC-1 rating, it meets precision standards for various industrial uses.
Its effective centre location of -0.12″ enhances stability in mounted assemblies.
Steel vs Ceramic Bearings: Strengths of 387A Bearing
387A Bearing uses chrome steel for its rings and rollers, providing excellent strength and wear resistance.
The steel cage ensures reliable roller alignment, even under high dynamic radial loads.
Its construction allows for efficient heat dissipation, maintaining performance in high-temperature conditions.
The standard radial clearance option makes it versatile for different operational needs.
Industrial Uses of 387A Bearing
The 387A Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in harsh working conditions.
Where Is 387A Bearing Used?
You’ll often find 387A Bearing in automotive applications like truck wheel hubs, where its high dynamic radial load capacity supports heavy-duty performance. The inch sizing makes it a convenient choice for North American vehicle models.
Built for Heavy-Duty Use: 387A Bearing
In agricultural machinery, 387A Bearing provides reliable performance in gearboxes and drivetrains, thanks to its robust steel cage. The open design allows for easy lubrication, extending its service life.
Automotive vs Aerospace: Applications of 387A Bearing
While 387A Bearing excels in automotive systems like axles and transmissions, it’s also suitable for industrial fans and pumps. Its standard radial clearance offers flexibility for various operational needs.
Key Fields for 387A Bearing
For conveyor systems, 387A Bearing’s tapered rollers ensure smooth operation under heavy loads. The ABEC-1 rating provides sufficient precision for most industrial applications without unnecessary cost.
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