Hydraulic Motors - A modular design
series
supplying up to 2 million Nm
The "am" series of axial
piston hydraulic motors is our own development and was designed for a normal pressure of
250 bar and a maximum pressure of 400 bar (to DIN 24312). This swash-plate, axial piston
motor was designed with special emphasis on good starting torque. This new series is
characterised by a co-axial design with a continuous hollow shaft, allowing a wide variety
of accessories such as brakes, rollback stops, synchronous drives and tachometers to be
fitted. Available oilmotor capacities are : 79, 111, 158, 216, 353 and 491 cm3.
The tried and tested "m"
range,
which has been used in many thousands of applications for almost 30 years, is also
available. It has been constantly improved, and is dimensionally interchangeable with the
"am" series.
ROLLSTAR planetary gear reducers are
compact gear units providing high torques at low net weights. The most modern computing
and manufacturing processes, quality assurance and generously proportioned roller bearings
ensure a long service life. The ring gears are made from quenched and tempered alloy steel
which is then nitrided; the planetary gears are made from high-grade, hardened carburised
steel. The surfaces of the teeth are ground to ensure high load resistance and quiet gear
running. All planetary carriers have two sets of bearings and three or more satellite
gears which means that dimensions can be substantially reduced. Each planetary stage is
available with several reductions, giving a large number of reductions for multi-step
gears.
As delivery times become ever
shorter, an
increasing level flexibility is also required on behalf of gear suppliers. ROLLSTAR
constantly fulfils these requirements for the widest possible range of applications and
also has the necessary experience and references.
Pictured is a hydraulic motor with brake
and two-stage planetary gear reducer with mounted brake, shown in section.
We should be pleased to receive your
enquiry, and shall require the following information:
