German HOFMANN bearings HOFMANN models HOFMANN prices

HOFMANN 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.

HOFMANN 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, cycloidal gearboxes, food packaging machinery, electric welders, soldering irons, square boxes, gravity spray guns, wire strippers, half-shafts, inspection and analysis equipment, fine chemical machinery.

HOFMANN bearing lubrication

The purpose of rolling bearing lubrication is to reduce internal friction and wear, prevent seizure; extend service life; dissipate frictional heat, cool, prevent 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. In order for the bearing to perform well, first, choose a lubrication method suitable for the operating conditions and purpose. If only lubrication is considered, oil lubrication has an advantage in terms of lubricity. However, grease lubrication has the characteristic of simplifying the structure around the bearing. Compare the advantages and disadvantages of grease lubrication and oil lubrication. Pay special attention to the amount during lubrication. Whether it is oil lubrication or grease lubrication, too little lubrication will affect bearing life due to insufficient lubrication, and too much will generate large resistance, affecting speed.

HOFMANN bearing maintenance

1) When the bearing has been running for a certain period (or during the maintenance period), 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 cover for cleaning; 3) After cleaning, let the cleaning oil dry naturally, and visually inspect for any 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 end to a bearing; 5) While quickly rotating the bearing by hand, press the other end of the wooden stick (wooden tube) against your ear or an audio amplifier microphone to listen to the bearing rotation noise; 6) After fixing the bearing, laterally move the wooden stick to check if the bearing is worn or loose; 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). Place the inspected bearings into the bucket and soak until no bubbles emerge. Remove the bearings before the grease cools down for less residual grease. Remove the angular contact ball bearings after the grease cools down for more residual grease. Determine the amount of residual grease as needed. 9) Wipe off the grease on 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. The maintenance work is then complete.

Weidou Intelligent Technology specializes in selling German HOFMANN plain bearings, HOFMANN rolling bearings, HOFMANN spherical plain bearings, HOFMANN deep groove ball bearings, HOFMANN angular contact ball bearings, HOFMANN self-aligning ball bearings, HOFMANN thrust ball bearings, HOFMANN double-direction thrust angular contact ball bearings, HOFMANN combination bearings, HOFMANN thrust roller bearings, HOFMANN needle roller bearings, HOFMANN outer sphere ball bearings, HOFMANN self-aligning roller bearings, HOFMANN flanged bearings, HOFMANN linear bearings, HOFMANN original imports from Germany. Welcome customers to inquire and order.