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The 719/8 angular contact bearing is an 8 x 19 x 6 mm precision bearing designed for compact assemblies that need to handle both radial and axial loads. It belongs to the 719 series, a thin-section design that packs real load capacity into a small, lightweight footprint. If you’re replacing a worn bearing in a precision spindle or building something where space is tight, this bearing is a smart fit.
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In an angular contact bearing, the inner and outer raceways are offset from each other. This means the load passes through the balls at an angle rather than straight across. That design lets the bearing support a combined load: radial force pushing down on the shaft, plus axial (thrust) force pushing along it. A standard deep groove bearing can handle some thrust, but an angular contact bearing is built specifically for it. That makes it the better choice wherever axial loads are significant or precise shaft positioning matters.
The 719/8 angular contact bearing is a popular choice for small, high-precision applications where accuracy and smooth running are critical. Its thin cross-section saves space and weight without giving up rigidity, which is why bearings in this series are commonly found in:
Because angular contact bearings carry axial load in one direction, they must be installed the right way around. Check the orientation before pressing the bearing into place, since a reversed bearing won’t support the load correctly and can fail early. These bearings are often mounted in pairs (back-to-back, face-to-face, or in tandem) to handle thrust from both directions or to increase load capacity. Always press on the ring being fitted: the outer ring when installing into a housing, and the inner ring when installing onto a shaft. Pressing on the wrong ring can damage the balls and raceways.
Correct preload, clean lubrication, and a contamination-free environment are the keys to long bearing life. Keep the work area clean during installation, use the lubricant your application calls for, and check the bearing regularly for noise, roughness, or heat. Catching these signs early protects the rest of your assembly.
Can I replace a 619/8 deep groove bearing with a 719/8?
The two share the same 8 x 19 x 6 mm dimensions, but they’re designed for different loads. Only switch to the 719/8 if your application needs angular contact performance and the bearing can be installed in the correct orientation.
Do angular contact bearings need to be used in pairs?
Not always. A single bearing works when the thrust load comes from one direction. Pairs are used when the load acts in both directions or when extra rigidity is needed.
Browse our full range of [Angular Contact Bearings](INSERT CATEGORY URL) for more sizes, all in stock and ready to ship nationwide. Need help choosing the right bearing? Call us at (+1) 978-254-3987.
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