Miki Pulley have an excellent reputation for producing high quality products such as their speed chargers and electromagnetic clutches. They are also expert coupling manufacturers and here we will take a closer look at a couple of their innovative products.
Miki Pulley Step-Flex Couplings
components known as Step-Flex couplings are designed to improve ball screw
performance while simultaneously reducing problems caused by vibration and
resonance. The Step-Flex is a particularly innovative type of shaft coupling,
with its construction featuring a combination of two elastomer elements.
elements help dampen vibration caused by the actuator carrier, which usually
occurs when there is some misalignment and the carrier is forced to make multiple
minor adjustments in quick succession in order to find its ‘home’ position.
design the Step-Flex coupling with one harder element, usually coloured black,
that is separated from the aluminium alloy hubs by the softer elastomer disc,
usually coloured green. The torsional stiffness is then maintained for optimum
performance and positional accuracy while minimal angular and parallel
misalignments can be easily tolerated and subsequent vibrations absorbed.
power-transmitting element features different layers of hardness and also helps
reduces the counter force generated by misalignment. The heat load is then
minimised during operation thanks to the overall load on the bearing being
of the elastomer elements for rotary motion applications is the electric and
temperature isolation which lessens the conductive heat that inevitably transfers
from the motor to the connected output shaft. The elastomer also prevents stray
voltage transmitting along the shaft.
The Miki Step-Flex coupling remains
one of the most popular Miki components and is available in nine sizes ranging
from 3mm to 30mm.
Miki Components: ALS Coupling (Jaw Spider)
couplings are power transmission couplings that are able to transmit torque via
two shafts while damping vibrations and accommodating any misalignment.
The design of
these Miki Pulley couplings feature a polyurethane elastomer element called a
‘spider’ which sits between two aluminium hubs which decrease moments of inertia caused when the application starts and
stops. Torsional stiffness is maintained by the spider element keeping the
aluminium hubs separate which also enhances the positional accuracy. This
design also accommodates minimal angular and parallel misalignment and absorbs
impacts and vibrations, dissipating heat in the process.
components of the coupling are assembled together with a jaw from each hub fitting
snug with the ‘legs’ of the spider element, with each spider leg having a
slight curve which enables pre-compression without backlash. The ALS elastomer
spider elements can come with various hardness values according to the
requirements of the application. The hubs are also clamped easily onto both
connecting shafts, locking the coupling in position with recessed tightening
are available too, such as keyed-style and pilot bore. Overall there are eight
models of the ALS coupling with a bore size range between 3mm and 60mm.
If you require any Miki
components such as the Step-Flex coupling or any of their speed chargers and
electromagnetic clutches, then contact
who are the UK’s leading couplings suppliers.