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The 749-S is a single-row tapered roller bearing with a 3.3475-inch bore, designed for combined loads. Made from durable chrome steel, it handles dynamic radial loads up to 84,700 lbf and static loads up to 93,800 lbf.
Its open design allows easy maintenance, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C, making it suitable for various conditions.
This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for heavy-duty applications like industrial machinery or automotive systems 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 as needed.
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Performance Features of 749-S Bearing
749-S Bearing is crafted with chrome steel rings and a steel cage, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 84,700 lbf, making it suitable for heavy-duty applications.
The tapered roller design enhances stability and reduces friction during operation.
How Is 749-S Bearing Engineered for Reliability?
749-S Bearing features a single-row construction, providing consistent performance in varied conditions.
With a temperature range of -30° to 110°C, it remains reliable in extreme environments.
The standard radial clearance options (C3/C4/C5) allow for flexibility in different applications.
Built for Durability: 749-S Bearing
749-S Bearing’s chrome steel components resist wear, extending its service life.
The effective centre location of -0.47″ ensures precise alignment and smooth operation.
Its ABEC-1 rating confirms its suitability for general precision requirements.
Steel vs Ceramic Bearings: Strengths of 749-S Bearing
749-S Bearing’s steel construction offers robust performance under high radial and thrust loads.
The dynamic thrust rating of 12,200 lbf (90 million revolutions) highlights its endurance.
Its open design simplifies maintenance, reducing downtime and operational costs.
Why Choose 749-S Bearing for Precision Tasks?
749-S Bearing’s tapered rollers provide accurate load distribution, minimising operational noise.
The cone width tolerance of +0.003″ to -0.01″ ensures a precise fit during installation.
With a static radial load capacity of 93,800 lbf, it delivers reliable performance in demanding settings.
Industrial Uses of 749-S Bearing
749-S Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.
Where Is 749-S Bearing Used?
You’ll often find 749-S Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for older or custom-built vehicles.
Built for Heavy-Duty Use: 749-S Bearing
In industrial settings, 749-S Bearing supports conveyor systems and gearboxes, thanks to its high dynamic radial load capacity. The open seal design allows for easy lubrication and maintenance.
Automotive vs Aerospace: Applications of 749-S Bearing
While 749-S Bearing is popular in automotive systems like axles, it’s also used in some aerospace ground support equipment. The steel cage provides reliable performance under varying temperatures.
Key Fields for 749-S Bearing
749-S Bearing works well in agricultural machinery, such as tractors and harvesters, where its robust design handles dirt and debris. The standard radial clearance offers flexibility for different load requirements.
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