Hydraulic Motor



    Hydraulic Motor
    Hydraulic Motor –
    Gear Category
    Gerotor / Geroler
    Hydraulic Motor –
    Piston category
    Hydraulic Motor
    Hydraulic Motor

    Hydraulic Motor – Gear Category

    Looking to buy a hydraulic motor or spare parts? Browse our range of motors here or give us a call now on +61 8 8984 4939.

    These consist essentially of two intermeshing toothed gears enclosed in a common housing. A shaft, the output shaft, extends beyond the housing. This shaft is attached to one of the gears which, in turn, drives the second gear. The hydraulic fluid is trapped in the gaps between the gear teeth and propelled along the inside of the housing from the pressure inlet port to the suction outlet port.

    Hydraulic Motor – Gerotor / Geroler Category

    Looking to buy a hydraulic motor or spare parts? Browse our range of motors here or give us a call now on +61 8 8984 4939.

    The difference is shown in the picture to the right: Essentially a Geroler’ has rolls added to the lobes of the outer ring of the Orbit gear set. These rolls act as a roller bearing and reduce friction, increase mechanical efficiency and reduce wear in systems with low fluid viscosity. In addition, the Geroler type typically provides smoother performance at low speed conditions.

    Hydraulic Motor – Piston category

    Axial piston Motors are displacement machines in which the pistons are arranged in parallel to the axis of rotation of a cylinder barrel. The conversion of the rotating drive motion into a backwards and forwards movement of the pistons takes place in accordance with 3 main principles. These are described in the following: All versions are suitable for both pump and motor operation.

    Swash-Plate Hydraulic Motor

    In this version, the cylinder barrel is driven and, as a result, the pistons which are located and guided in the barrel rotate with it. In the axial direction, the movement of the pistons is determined by the swash-plate which is attached to the motor housing. This swash-plate can be pivoted with reference to the vertical axis passing through the drive shaft. The hydraulic motor displacement volume is determined by the angle at which the swash-plate is inclined from the vertical. This principle makes it possible for the hydraulic motor to be reversible. In the case of constant-capacity hydraulic motors, the swash-plate angle is not variable. During the suction phase, the pistons move out of the barrel and are forced against the swash plate by a special retaining plate. During the pressure phase, the swash plate forces the pistons back into the barrel. The rotating pistons move in an elliptical orbit against the stationary swash plate. Friction is held to an absolute minimum by slipper pads or axial bearings. A form of slot control is used to ensure that the delivery flow from the individual pistons is in the same direction, and that the piston ports are connected to the pressure or suction connection at the right moment. The slot control is located in a stationary control plate against which the cylinder barrel rotates with its piston port face.

    Wobble-Plate Hydraulic Motor

    With this type of hydraulic motor, a so-called wobble plate is driven by the input or drive shaft. This plate transfers its axial movement to the non·rotating pistons. Springs force the pistons against the wobble plate. A thrust bearing transfers the pressure forces between the pistons and the wobble plate which are moving against each other. Valves can be used to ensure that the delivery flow from the individual pistons is in the same direction. A slot-type control at the individual pistons can also be used for this purpose. The angle of tilt of the wobble plate cannot be varied in this motor. This means that the displacement is constant.

    Winnellie Group
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    Jutta TilleryJutta Tillery
    14:34 02 Apr 22
    Excellent customer service, kept us updated throughout the delivery process really looking forward to doing business with Waltan Tools again soon
    Daniel and ScottDaniel and Scott
    12:02 29 Jun 21
    We have done business with Winnellie Hydraulics on numerous occasions and find them to always be nothing but professional, honest and reliable.Their customer service is excellent and they are always a pleasure to work with. We would highly recommend Winnellie Hydraulics and we look forward to continuing business with Max and the team in the up and coming future.
    Damien PedersenDamien Pedersen
    06:23 15 Feb 21
    Winnellie Hydraulics are up most professional and I am always impressed with the service offered and provided. The team at Winnellie Hydraulics are highly skilled, innovative and ever reliable. They continue to be the Territory’s leading service specialists within the fields of the hydraulic and pneumatic services and solutions. The team have a broad range of knowledge in hydraulic, pneumatic, hose management and products across a extensive range of divisions. The team at Winnellie Hydraulics are easy to work with and really appreciate their customers and strive for continuous business improvement.
    Rob NorthRob North
    07:53 10 Feb 21
    Efficient, professional and dedicated. The team at Winnellie Hydraulics are a pleasure to work with and are customer service specialists.Max and the team have taken on many challenges to assist with emergent scopes at our onshore facility in Darwin. They go above and beyond to meet the timeline required without missing a beat on quality.I highly recommend dealing with them and look forward to future business.Thanks guys
    Sonia HarveySonia Harvey
    05:25 08 Feb 21
    The team at Winnellie Hydraulics are customer service specialists! They certainly go above and beyond to meet the needs of customers and are a great local service and supply business. I highly recommend dealing with them.
    Darren SteeleDarren Steele
    02:59 07 Feb 21
    For all your Hydraulic & Pneumatic needs, Winnellie Hydraulics has you covered.Max and the team run a great operation that supports the Oil & Gas and Mining industries.With great brands supporting them, they are truly the one stop shop for all your engineering needs.
    Dipak NandDipak Nand
    23:06 04 Feb 21
    The team at Winnellie hydraulics, is great to work with, they understand our priority and service delivery to our Defence clients, No job too small or big and delivering of high quality products and service. Also really easy to deal with in regards to faults/ warranty and SME service . Highly recommended to use.
    Darren UptonDarren Upton
    22:54 04 Feb 21
    Winnellie Hydraulics are a Parker PPD for the NT which means they have full access to all Parkers Hannifin products & our local Engineering team in Australia who can work with Winnellie on any projects where clients needs are meet using Parkers products & their insulation experience
    Ben TilbrookBen Tilbrook
    07:35 04 Feb 21
    Outstanding commitment to their customers, in my experience there isn’t anything that is too hard for this mob. Always prepared to find solutions to their customers now matter how big or small the request. A great family business who take pride in providing product and service.
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