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variable Transmissioner Kører bedre med
Charles MO – Developers of continuously variable transmission (CVTs) are
discovering the advantages of Santotrac 50, which has the highest traction
coefficient of any known lubricant - typically 50% to 100% greater than
the traction coefficient of less robust hydrodynamic lubricants.
extremely high traction coefficient is possible because under pressure
Santotrac 50 is transformed for a few microseconds into a glassy solid
between the two power-transferring surfaces.
This brief fluid-solid-fluid transition gives superb power transfer
efficiency in CVTs.
example is the Milner CVT, which has just undergone its initial
performance tests in the UK.
Developed by Peter J. Milner Consultant Engineers (011 44 1455 633
559), the MCVT uses three or more spherical planetary rollers that
transfer drive from an inner race set to a carrier assembly.
Efficiency is typically 85% to 90%, and as high as 99% in direct
Both standard and ceramic silicon nitride balls were used in the
by Santotrac 50 EHD fluid resulted in high traction, ease of cooling, and
the very low noise level typical of EHDs.
Additional testing diluted these high-traction fluids with standard
low-traction automatic transmission fluids without unacceptable loss of
applications for the light-weight MCVT include automotive, motorcycle, and
industrial gearboxes, cycle hub transmissions, automotive ancillary drives
(the “smart” crankshaft pulley), marine gearboxes, and variable speed
electric motor drives.
more information about Santotrac 50 and the other products that make up
this unique class of traction lubricant technology, contact