German Sturm Praezision bearings, Sturm Praezision models, Sturm Praezision prices

Sturm Praezision bearings can simultaneously withstand radial and axial loads. They can operate at higher speeds. The larger the contact angle, the higher the axial load capacity. The contact angle is the angle between the line connecting the contact points of the ball and the raceway in the radial plane and the perpendicular to the bearing axis. High-precision and high-speed bearings typically use a 15 degree contact angle. Under axial force, the contact angle increases.

Sturm Praezision bearing applications

Single-row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifuges, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, repair welders, low-noise cooling towers, electromechanical equipment, painting equipment, machine tool slot plates, arc welders Double-row angular contact ball bearings: oil pumps, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery, planetary gearboxes, extraction equipment, cycloidal gearboxes, food packaging machinery, electric welders, soldering irons, square boxes, gravity spray guns, wire stripping machines, half shafts, inspection and analysis equipment, fine chemical machinery.

Sturm Praezision bearing lubrication

The purposes of rolling bearing lubrication are to reduce internal friction and wear, prevent seizure; extend service life; dissipate frictional heat for cooling, prevent bearing overheating, and prevent the lubricating oil itself from aging; it also prevents foreign matter from entering the bearing interior, or prevents rust and corrosion. Bearing lubrication methods are divided into grease lubrication and oil lubrication. To ensure the bearing performs well, first, select a lubrication method suitable for the operating conditions and purpose. If only lubrication is considered, oil lubrication has superior lubricity. However, grease lubrication has the advantage of simplifying the structure around the bearing. Compare the pros and cons of grease lubrication and oil lubrication. Pay special attention to the amount during lubrication. Whether using oil or grease lubrication, too little lubrication will inadequately lubricate and affect bearing life, while too much will generate significant resistance and affect speed.

Sturm Praezision bearing maintenance

1) When the bearing has operated for a certain period (or during the maintenance interval), remove all bearings; 2) Soak and clean the bearings with diesel or kerosene used for cleaning; if technical conditions allow, it is best to open the seal covers for cleaning; 3) After cleaning, allow the cleaning oil to air dry, and visually inspect for damage; 4) Use a wooden stick (preferably a hollow tube) approximately 150mm long, with a diameter equal to the inner diameter of the angular contact ball bearing, and fix one bearing at one end; 5) While manually rotating the bearing quickly, press the other end of the wooden stick (tube) against your ear or an audio amplifier microphone to listen for bearing rotation noise; 6) After fixing the bearing, move the wooden stick laterally to check for bearing wear or looseness; 7) FAG bearings with severe looseness, excessive rotation noise, or serious defects should be discarded and replaced with the same model; 8) Take a bucket and melt an appropriate amount of lubricating grease (high-quality yellow dry oil) over a gentle flame (do not overheat), immerse the inspected bearings in the bucket until no bubbles emerge. Remove the bearings before the grease cools to leave a small amount of residual grease. Remove the angular contact ball bearings after the grease cools to leave a larger amount of residual grease. Determine the amount of residual grease as needed. 9) Wipe the grease off the outside of the bearing with a soft cloth or toilet paper, and assemble the FAG bearing back onto the pulley in its original state to complete the maintenance work.

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