News
2009/10/01
Quiet and efficient
From the bearing element up to the complete system: The LDH Drive – our latest special bearing
We specialise in made-to-measure antifriction bearings. The end product is determined by the customer's individual specifications. This also applies to our latest special bearing. With the LDH Drive, Franke has been able to develop a product that fulfils the wishes of our customers for muted noise development at high speeds. 300 rpm and less than 60 dB (A): these figures speak for themselves. Moreover, we have integrated a direct drive into the antifriction bearings - a system solution that will profit our customers in more ways than one. You will receive a complete system comprising bearings and drive and, at the same time, you will save energy - cost-saving and environmentally friendly. The LDH Drive has been specially designed for use with computer tomography but may, however, be used in other areas equally well - anywhere where high speeds, low noise level or a direct drive is needed.
Astonishingly quiet: The LDH Drive as main bearings in computer tomography.
Airborne noise less than 60 dB (A)
A noise development that will impress.
Even at a speed of 300 rpm the LDH Drive is below a level of 60 dB (A) in airborne noise measurement. Specific improvements to the geometry, raceways and the rolling elements have led to this result.
CT bearings are fully tested at our test facilities. All bearings get a test certificate with detailed data on performance.
Airborne noise
Total: Sum = 59.0 dB (A)/20.0u Pa (300 rpm))
Products with Countless Design Possibilities
The Franke principle produces an extremely compact bearing, which also suits very small spaces and offers the most diverse design possibilities. Four race rings fit their raceway thanks to a specially developed grinding procedure - exactly adjusted to the ball diameter. Therefore, the rolling process does not occur directly between the rolling elements and mating structure, but rather smoothly on the four open race rings.
Construction examples