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OE-Bearing for High Speed Spinning Machines

A OE-bearing running with about 180.000 rpm, consumpts about 150 Watt to 200 Watts. How intensive measurements show, the very most of this energy is used to heat up the rubber of the supporting disks of the bearing. For the wished spinning process there are only max. 30 Watts left. The rest heats mainly up the damping rubber which rises up near to the limit temperature. Therefore the bearing has to be cooled under big difficulties which are consumpting extra energy. The high power consumption leads to high danger of fire. To reduce this danger, a lot of air to cool the system ist to be used. This cooling costs extra energy.

The reason for the high power consumption of the bearing lies in the high damping wheels. They have to be used because of the bearings kinematics. To avoid the rotor to come frontwards, the axises of the four supporting disks are not parallel. So the rotor is screwed backwards by friction where a axial bearings stops the movement at an exact point.

If the bearing would be completely balanced, there wouldn't be no further problems. But the unbalanced and high speed rotating masses causes rotating forces. So the shaft pressing depends on the angle the vector ist radial directet. The force backwards is caused by friction. And the friction depends on the changing normal force. At the result the force backwards changes as well. And the geometry amplifies the forces backwards and a huge force dynamic is the result. This high dynamic leads to stimulate the very complex spring mass system to swing in a lot of frequencies. If there would be no effective damping in the supporting disks, the bearing couldn't run. But this high damping has its price: bad effectiveness, high energy costs to drive the system, high invenstition costs because of the complicated cooling and heavy motors, fire danger and a very loud noise.

Conventional OE-Bearings are so expensive because the damping material (Vulcollan) ist very expensive, and the cooling and the heavy motors with depending strong machine dimensions consumpting extra money.

Proposal to solve the problem:

The weak and high damping wheels has to be eliminated. This efforts geometric exactly defined relations how they are NOT found in nowoadays OE-High-Speed-Bearings. The axises of the supporting wheels has to be parallel. Now one have the problem of the forwards coming shaft. To avoid this, one has to use wide reaching forces which can be realised with unfocused magnetic fields. But now the exact position of the shaft couldn't be realised. Therefore a short distance high grade force has to work against the "soft" force. How this could run I don't like to speak about here. But You can ask me. My aim is to find a partner to realise the idea.


If the requirements are fullfilled, there is no reason not to run steel on steel. The driving power can be reduced by the damping. Per spinning box there should be a driving power of 50 Watts enough (180.000 rpm). If you calculate the energy costs and the high using time than the buying argument is surely very high. The proposed bearing allows to use the given bearing dimensions of existing machines. Than the bearings can be changed by third party deliverers very simply. If a manufactorer will join my proposal then the whole machine could be made much cheaper. Reasons: Smaller driving motor, weaker (cheaper) structure of the machine body. A further buying argument is the reduced driving power. Because of the reduced driving power smaller tangential belts are possible. Therefore the supporting disks can be arranged closer. The shaft can be shortened by this amount. The limit frequency ist rising and higher speed is possible with only a few development efforts..

To do:

If You are interested in th development of this bearing, pleas don't hesitate to contact me and let us work together.
Email: Christoph.Mueller@astrail.de

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