G&GD Series
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HIGH AND LOW SPEED RADIAL PISTON MOTORS

- HYDRAULIC MOTORS COMPANY GENERAL INFORMATION We produce RADIAL PISTON HYDRAULIC MOTORS since 198S: our yearly production is more than 13.000 units which we sell all over the worid through our agents and authorized sellers. Our motor range varies from 20cc to SSOOcc displacement and it is completed by two-speed motors and spedal motors created tn cooperation with our clients for different applications such as : underwater, high & low speed and wheel motors and with the possibility to assemble valves, brakes or gear reductions. You can directly contact our Technical Department which will...

HYDRAULIC MOTORS HIGH AND LOW SPEED RADIAL PISTON TECHNICAL CATALOGUE COMPANY GENERAL INFORMATION--------------------------Pag. 1 SHAFT SEAL FEATURES--------------------------------- 11 10 - G SERIES - SIZE & SHAFT- - GD SERIES - SIZE & SHAFT - TACHOMETER / SPLINE BILLETS---------------------------- " 19 The data specified into the catalogue are for product description purpose only and must not be interpreted as warranted characteristics in legal sense. Italgroup S.r.l. reserves the right to implement modifications without notice. All partial or total reproduction and copy without written...

MOTOR TECHNICAL DATA HYDRAULIC MOTORS G series_Single displacement motor The Cj & GD motors arc radial piston hydraulic motors that can be used tor different applications, both general and specific ones. The G & GD series is char act eri/.ed by high speed, hiiili volumetric efficiency and high starting torque. G & GD inn LOTS t;an be used for both mobile and industrial applications, we can supply them in complete groups, together with gearboxes and negative brakes. Special features like high pressure bidirectional shaft seals and special treatment on motors can be performed. Please contact...

HYDRAULIC MOTORS HYDRAULIC FLUIDS RECOMMENDATIONS HYDRAULIC FLUIDS We recommend the use of hydraulic oils with anti-wear additives (ISO HM or HV) and minimum viscosity index of 95. Once normal working temperature is reached, oil viscosity must be at least 44 cSt, preferably in the range from 50 to Hydraulic oils meeting Denison MF-O, Vickers M-29S2-S I - Pay particular attention if you use HE type oils (ecological fluid) because them can influence the motor seals compatibility, the molar performance and life. Please ask us for advice in case of HE type oils usage. N neral hydraulic o:ls are...

- HYDRAULIC MOTORS Hoses and piping must be dean and free from contamination. The motor must be fitted on a flat, robust surface using the right bolts [see the following table for your reference). MINIMUM SPEED The minimum acceptable speed depends by different variables, like load inertia, motor displacement, system leakages, etc For indicative values refer to motor technical data. For GD series, when it is possible, always start the motor In high displacement, to avoid start-up GD SERIES - DISPLACEMENT CHANGE The displacement change can be performed in different ways. The user can use an...

HYDRAULIC MOTORS The oil flow rate required to perform the displacement charge can be estimated in function of many different parameters; the most important factor that determinate the required flow rate is the motor case internal leakage. The Pow rate that is shown in the next table must be considered as an Indicative value that depends by many system Selecting a G series hydraulic motor, the following circuit represents the best choice for freewheeling operation. The motor works under vacuum conditions, therefore it can work several hours without causing any damage and overheating. The...

HYDRAULIC MOTORS When the motor is running at high speed, a minimum pressure must exists at the motor ports (see boost pressure paragraph), but in all cases this pressure must not exceed the nciximum working pressure reported in the ?ero displacement code motor technical data. A crankcase flushing flow is highly recommendend in freewheeling operation, to control and reduce the motor temperature rise during the freewheeling. ]f the motor running speed is between 1000 and Z500 rpm, a 10 l/min (indicative value) flushing flow is compulsory. The bearirKi life depend-; by differe-i: factors,...

HYDRAULIC MOTORS FLUSHING FLOW Cooling flow is necessary to assure Hie minimum oil viscosity and depends by motor displacement. On radial piston hydraulic motors with high volumetric efficiency, and therefore Italgroup G and GD series, there can be a phenomenon of oil-overheating in ttie body motor. In fixed applications, for example, where the motor is running constantly for E or more hours a day (like injection machines for plastic materials, press, bending machines, etc.) high volumetric efficiency can create temperature increasing in motor body. In this case temperature increasing is to...

HYDRAULIC MOTORS DRAIN RECOMMENDATIONS Motor axis horizontal Axis vertical, shaft up ■dHDflM dran Axis vertical, shaft down For ail motors 6/GD series, it is necessary TO FILL the motor case with hydraulic fluid, through the drain pipe, before start-up. P=plug D=drain The data specified into the catalogue are for product description purpose only and must not be interpreted as warranted characteristics in legal sense. Italgroup S.r.l. reserves the right to implement modifications without notice. All partial or total reproduction and copy without written authorization of Italgroup S.r.l. is...

HYDRAULIC MOTORS - SHAFT SEAL FEATURES Type; BABSL SI MM ERRING® radial shaft seal with rubber covered O.D,, short, flexibility suspensed, spring loaded sealing lip and additional dust lip: see Part 6/ SI MM ERRING®, sections - Acrylonitrile-butadiene rubber with 72 Shore A hardness (designation: SIMRIT® 72 NBR - Fluono rubber with 75 Shone A hardness Metal insert: For sealing pressurised media without additional backup ring, e. g. for rotational pressure sealing in hydraulic pumps, hydraulic motors, hydnodynamic clutches. Rubber covered O.D. assures sealing in the housing bore even in case...