German RVT bearings RVT models RVT prices

RVT bearings have raceways on both the inner and outer rings, and the inner and outer rings can move relative to each other along the bearing axis. This type of bearing is particularly suitable for withstanding combined loads, i.e., loads acting radially and axially at the same time. The axial load carrying capacity of angular contact ball bearings increases as the contact angle α increases. 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.

RVT bearing applications

Single-row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, front wheels of small cars, 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, cycloid 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 .

RVT 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 lubricant 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, too little leads to insufficient lubrication affecting bearing life, while too much creates significant resistance, affecting rotational speed.

RVT 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, let the cleaning oil air dry, and visually inspect for damage; 4) Use a wooden stick (preferably a hollow tube) about 150mm long, with a diameter equal to the inner diameter of the angular contact ball bearing, fix one bearing at one end; 5) While rapidly rotating the bearing by hand, 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, laterally wiggle the wooden stick 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, melt an appropriate amount of lubricant 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 for minimal residual grease. Remove the angular contact ball bearings after the grease cools for maximal 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, install the FAG bearing back onto the pulley in its original state, and the maintenance work is complete.

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