GEAR MOTORS GHM
56Pages

MOTORI adINGRANAGGIGEAR MOTORS GHMGHM >

Marzocchi Pompe was founded in 1961 by Guglielmo and StefanoMarzocchi, in Casalecchio di Reno, in the outskirts of Bologna.Today, Marzocchi Pompe leads an industrial group the Marzocchi Group - that employs more than 400 people. The Group, owned and directed by Adriano and Paolo Marzocchi, works in the hydraulic pump and motor sectors and in the suspensionsystems for motorcycles and mountain bikes.Marzocchi Pompe developed in time both their dimensions and their product range, being at present among the major manufacturers of external gear hydraulic pumps and motors. Marzocchi Pompe is now...

Informazioni generali Progetto di baseGamma di prodottoVersioni speciali Informazioni tecniche Note per linstallazionePulizia dellҒimpianto e filtrazioneFluidi idrauliciVelocit minima di rotazioneDefinizione delle pressioniCondotti dalimentazione e mandataSenso di rotazioneTrainoFormule di uso corrente pagina/ pages 2 24 4 5 > GHM1GHM2 GHM3 11 Accessori 1221 38 RaccordiKit guarnizioni 52 General information 5252 Basic designProduct rangeSpecial versions Technical information Installation notesCleaning and filtering the system Hydraulic fluids Min. rotation speed Pressure definitionSupply...

BASIC DESIGN External gear motors are popular components in those hydraulicsystems where it is requested to receive from a motor a torque of adequate intensity.They feature versatility, strength and long useful life. Their simple construction with respect to other types of motors (piston, orbital, etc) ensures limited purchase costs and servicing. Thanks to these basic concepts, together with ever-improving productdesign and features, research-based on many years of experience,accuracy in material selection, production process followed in greatdetail and tests on mass-produced parts,...

COMPONENTI BASE DEL MOTORE BASIC MOTORS PARTS 1- > INGRANAGGIOCONDUTTORE 1- > DRIVEGEAR 2- > INGRANAGGIOCONDOTTO 2- > DRIVENGEAR 3- > BOCCOLE 3- > BUSHINGS 4- > CORPO 4- > BODY 5- > FLANGIA 5- > FLANGE 6- > COPERCHIO 6- > COVER 7- > ANELLODITENUTA 7- > ROTARYSHAFTSEAL 8- > GUARNIZIONICOMPENSAZIONE 8- > COMPENSATIONSEALS 9- > ANTIESTRUSIONE 9- > ANTI - > EXTRUSIONSEALS 10- > ANELLOELASTICOD Ғ > ARRESTO 10- > STOPRING 11- > ANELLODISOSTEGNO 11- > SUPPORTRING

PRODUCT RANGE Bi-directional motors S ) or right (GHM... .They are produced in three different groups. A very good power/weight ratio and power/sizes ratio are allowing a wide range of displacements within each group (between2.8 and 87 cc/rev). The wide range of allowed speeds, theexcellent functionality also on their use in serie, with strong counterpressures and limited drain, give to motors of the GHM serievery good characteristics of starting with or without load. The drain is always external and it is through a thread port on the cover.Different flanges, shafts, inlet and pressure...

Please strictly follow assembly and use indications given in thiscatalogue for top performance and longer life of the GHMMarzocchi serie. Some general considerations should be made on the hydraulic system, in which the.motor must be fitted. Special attention shall be devoted to hydraulic system design and assembly, especially tointake, delivery, return and drain pipes and position of system parts(valves, filters, tanks, heat exchangers and accumulators). Proper safety devices and reliable instruments to avoid fluid turbulence. and prevent air, water or foreign bodies from entering into the...

CLEANING AND FILTERING THE SYSTEM It is widely known that most motors early failures are due tocontaminated fluids. The extreme reduction of the tolerances requiredin the design of the motors and therefore their operation with minimum clearances, are heavily influenced by a fluid that is not perfectly clean. It is proved that particles circulating in the fluid act as abrasiveagents, damaging the surfaces they touch and increasing the quantityof contaminant. For this reason, ensure that system is perfectly clean during startup and keep it clean for its whole operating life. Necessary...

HYDRAULIC FLUIDS Use specific mineral oil based hydraulic fluids having good anti-wear,anti-foaming (rapid de-aeration), antioxidant, anti-corrosion and lubricating properties. Fluids should also comply with DIN 51525 andVDMA 24317 standards and.get through 11th stage of FZG test.For the standard models, the temperature of the fluid should be between -10C and +80аC. Fluid kinematic viscosity ranges are the following: If fluids other than the above mentioned ones are used, pleasealways indicate type of used fluid and operating conditions so that our Sales and Technical Dept. can weigh...

PRESSURE DEFINITION Product tables show three max. pressure levels (PC, PIand PP) to which each motor can be used. PC =max pressure continually as output counterpressure PI =max inlet pressure continually PP =max peak inlet pressureThe value of the max continous PI pressure can be reached only if the following ranges of rotation are not overcome. Please call our Sales and Technical Dept. for system operatingconditions other than indicated in the product tables. DEFINIZIONE DELLE PRESSIONI Le tabelle di prodotto presentano tre livelli massimi di pressione (PC, PI, PP) alle quali ogni motore...

DIRECTION OF ROTATION The motors of the Marzocchi GHM serie can be supplied both in monodirectional version and bidirectional. The direction of rotationis defined in the following way: looking at the front of the motor with the driver shaft positioned upward and sticking toward the observer, it will be a monodirectional right " SENSO DI ROTAZIONE D ". GHM... D motortherefore with right. " D " rotation, if its rotation will be clockwise.andtherefore the inlet port will be on the left while the outlet port will be on the right.Viceversa it will be a monodirectional left GHM... I motori della...

FREQUENTLY USED FORMULAS Fluid velocity Calculate the velocity ( v ) of a fluid in a pipe as follows: v = Q / 6 FORMULE DI USO CORRENTE Velocit del fluido Per calcolare la velocit ( v ) di un fluido in un condotto: v = Q / 6 > ࠕ A [m/s]Q=portata [litri/min]A=sezione del condotto [cm > A [m/s]Q=flow rate [liter/min]A=inside area of pipe [cmղ] > 2 ] Portata assorbita da un motore Absorbed flow rate Per determinare la portata ( Q ): Calculate flow rate ( Q ) as follows: Q = V > n > Օ 10 > -3 / > vol[litri/min]V=displacement [cm/rotation]n=rotation speed [rotations per minute] > 3...