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    Orbital Motors

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    Hydraulic Orbital Motor, 50cc/rev

    $199.69
    SKU: ATO-HOM-50
    High peformance hydraulic orbital motor online sale, it is widely applied in agriculture machinery, fishing machinery, plastic industry, and construction machinery, etc. It can be used in parallel or series with 50 cc/rev displacement and flat key shaft or splined shaft. Mounting flanges of 2 bolts and 4 bolts are available.

    Hydraulic Orbital Motor, 63cc/rev

    $199.69
    SKU: ATO-HOM-63
    Orbital hydraulic motor can be mounted with 2 bolts or 4 bolts flange, used in agriculture machinery, fishing machinery, plastic industry, and construction machinery, etc. 63 cc/rev displacement, optional flat key shaft or splined shaft.

    Hydraulic Orbital Motor, 80cc/rev

    $209.99
    SKU: ATO-HOM-80
    Low price hydraulic orbital motor can be mounted with 2 bolts or 4 bolts flange, used in agriculture machinery, fishing machinery, plastic industry, and construction machinery, etc. 80 cc/rev displacement, optional flat key shaft or splined shaft.

    Hydraulic Orbital Motor, 100cc/rev

    $209.99
    SKU: ATO-HOM-100
    Low speed high torque hydraulic orbital motor for sale. It is a spool valve motor with 100cc/r displacement, reliable operation and high efficiency. Shaft seal can bear high pressure of the back. This orbit motor can be used in parallel or series in the hydraulic system.

    Hydraulic Orbital Motor, 125cc/rev

    $219.75
    SKU: ATO-HOM-125
    Factory price hydraulic orbital motor online sale, low speed high torque with 125cc/r displacement. It is a spool valve motor that can be used in parallel or series, selectable flat key shaft or splined shaft, mounting flanges of 2 bolts and 4 bolts.

    Hydraulic Orbital Motor, 160cc/rev

    $219.75
    SKU: ATO-HOM-160
    Buy hydraulic orbital motor online, low speed high torque with 160cc/r displacement. It is a spool valve motor can be used in parallel or series, selectable flat key shaft or splined shaft, mounting flanges of 2 bolts and 4 bolts.

    Hydraulic Orbital Motor, 200cc/rev

    $229.75
    SKU: ATO-HOM-200
    Low speed high torque hydraulic orbital motor at affordable price. It is a spool valve motor with 200cc/r displacement, reliable operation and high efficiency, selectable flat key shaft or splined shaft, and mounting flanges of 2 bolts and 4 bolts. This orbit motor can be used in parallel or in series.

    Hydraulic Orbital Motor, 250cc/rev

    $229.75
    SKU: ATO-HOM-250
    Factory price hydraulic orbital motor with high performance shaft, can bear high pressure, high speed and high radial force. Mounting flanges of 2 bolts and 4 bolts, easy to install. 250cc/r displacement, max. speed up to 281 rpm, torque up to 378Nm, can be used in parallel or series.

    Hydraulic Orbital Motor, 305cc/rev

    $235.69
    SKU: ATO-HOM-305
    Shop hydraulic orbital motor online. It is a spool valve motor with 305cc/r displacement, reliable operation and high efficiency, high torque and low speed, selectable flat key shaft or splined shaft, and mounting flanges of 2 bolts and 4 bolts. This orbit motor can be used in parallel or in series.

    Hydraulic Orbital Motor, 370cc/rev

    $235.69
    SKU: ATO-HOM-370
    High torque low speed orbital hydraulic motor is widely applied in agriculture machinery, fishing machinery, plastic industry, and construction machinery, etc. It can be used in parallel or series with 370 cc/rev displacement and flat key shaft or splined shaft. Mounting flanges of 2 bolts and 4 bolts are available.

    Hydraulic Orbital Motor, 395cc/rev

    $235.69
    SKU: ATO-HOM-395
    ATO orbital hydraulic motor is widely applied in agriculture machinery, fishing machinery, plastic industry, construction machinery, etc. It can be used in parallel or series with 395 cc/rev displacement and flat key shaft or splined shaft. Mounting flanges of 2 bolts and 4 bolts are available.

    Hydraulic orbital motor is a motor that slow-rotating rotor drives the output through the flat key or splined shaft. The inner gear ring is fixedly connected with the housing, and the oil entering from the oil port pushes the rotor to revolve around a center point. ATO provides 50 to 395 cc/rev displacement hydraulic orbital motors for you to choose from, the maximum speed from 180 rpm to 859 rpm, working torque up to 525 Nm, working pressure 15MPa, high efficiency and economical price. Hydraulic orbit motors have a wide range of applications, mainly used in the slewing mechanism of a variety of machinery such as agriculture, fishery, light industry, lifting and transportation, mining, and construction machinery.

    The structure of the hydraulic orbital motor

    Hydraulic orbital motor for the end of the flow distribution, excitation compensation type, mainly by the output shaft, front cover, bearings, long linkage shaft, bearing shell, stator and rotor vice, valve disc, small linkage shaft, flow distribution disc and preload spring and other components, this hydraulic motor has a low speed, high torque characteristics.

    Hydraulic motor performance decline in the cause

    Hydraulic motor wear phenomenon

    The hydraulic motor installed on the drilling rig was dismantled and inspected, and it was found that the friction surface of the hydraulic motor and the valve disc was severely worn, and the deepest wear reached 0.15 mm, the oil seal of the output shaft was leaking.

    Output shaft oil seal leakage causes

    After dismantling and testing, the axial and radial clearance of the output shaft is in line with the standard, and the mating surface of the output shaft and oil seal has no obvious wear. However, it was found that the rubber of the oil seal was aging and hardening, and the elasticity was deteriorating. After the oil seal lip is worn, the preload force and oil sealing performance decreases, and the high oil temperature accelerates the wear of the oil seal lip. In addition, due to the internal leakage of the hydraulic motor, the back pressure inside the housing is too high, which further aggravates the oil seal lip wear and oil leakage.

    The reason for the wear of the flow plate

    As can be seen from the hydraulic motor working principle, the distribution disk and the cycloid rotor by a small linkage shaft coupling together, while the distribution disk in the valve plate to do sliding rotation. The causes of excessive wear of the frictional side are as follows:

    Just install the new hydraulic motor, due to the motor housing is not filled with hydraulic oil, so that the friction surface of the friction side lack of sufficient lubrication and cause wear. Especially at the beginning of the work with a large load, more intensified with the wear of the flow disc with the valve disc friction surface due to wear roughness, so that the friction between the impurity storage space increased, into the friction surface of the particles and the metal particles were ground down with the flow disc rotation, intensified the wear. The failure of the filter element of the hydraulic system makes the hydraulic oil mixed with particulate impurities, small particles in the process of rotating the flow disc into the friction surface, so that the friction surface abrasive wear. Due to the wear between the flow disc and valve disc, the hydraulic oil in the inlet and return oil channel between the gap and connected, under the action of high pressure, so that the hydraulic oil sealing, cleaning, heat dissipation performance decreases, the oil temperature increases, plus according to the wear.