Nois e Noise is a particularly pervasive problem so much so that there have been statutory regulations in place now for some years, designed to limit harmful occupational exposure. Many of the machines used in industry today are equipped with oil-hydraulic systems, which happen to be a major source of noise. 1. Theory and definition of noise From a health and hygiene standpoint, noise can be defined as an unpleasant and undesirable sound, or an unpleasant and annoying or intolerable auditory sensation (noise being any sound phenomena that may be accompanied by sensations of disturbance and pain)....

LMC series monobloc bell housings - piston/vane/screw pumps 4 Comparative table, monobloc bell housings 9 BMC series motor base 10 LMC series cast bell housings - gear pumps 14 Comparative table, monobloc bell housings 25 LMS series low noise bell housings 28 Comparative table, low noise bell housings 35 Components for MODUL 2/3 bell housings 36 Bell housings for NEMA motors 44 Comparative table, modular bell housings 50 SGEA - SGEG - SGES series drive couplings 52 LVA series visual level indicators (Inspection door options) 70 LEG series electrical level indicators (Inspection door options)...

Monobloc bell housings L M C series LMC series monobloc bell housings are used as connecting elements between B3-B5 flanged UNEL-MEC electric motors and a wide range of hydraulic pumps available on the international market. With special machining, they can be modified to serve as motors base that will accept standard flanges manufactured by MP Filtri S.P.A. (MODUL-2). Thanks to their considerable versatility and to the extensive range of pump flanges available, LMC series monobloc bell housings are compatible with electric motors from size 80, rated 0.5 kW, up to size 225, rated 37/45 kW, and...

How to use the catalogue This catalogue provides all the technical and dimensional data needed in order to ensure the correct selection of an LMC series bell housing. • Having established the rated power of the electric motor and type of pump that will be adopted to make up the unit, refer to the tables of combinations, locate the correct pairing of motor and pump, and identify the code of the pump flange. • Table 2 presents all the combinations possible between motor base and pump flange. With this information, the customer can determine the exact distance H1 to be bridged by the LMC bell housing...

Monobloc bell housing BCD Auxiliary flange Monobloc bell housing Spigot hole H1 (Composite bell housing) The auxiliary flange, if specified, is supplied already fitted to the bell housing (MODUL-2). Machining tolerances • For loose components see pages 11 - 12 - 13 • Check that the pump interface dimensions are compatible with those of the bell housing N.B. The hole made in the tank cover should be 2 mm larger than dimension D5 Concentricity of D1/Spigot hole LMC 200 - LMC 350 LMC 300 - LMC 450 TABLE 1 Dimensions of LMC monobloc bell housing Bell housing code Frame size Foot bracket code To determine...

LM C bell housing, dimension H1 TABLE 2 Specified tightening torques for auxiliary flange Monobloc bell housing Code TABLE 3 Modul 2 bell housing Code These values are calculated to exploit the performance of the bolt at 70% of its elastic limit. This means in practice that the shank of the bolt will be stressed typically to 60-70% of its limit of elasticity in the course of being tightened. The values indicated are valid for hexagon head bolts to UNI 5737 and hexagon socket screws to UNI 5931, property class 8.8, tightened by degrees using a torque wrench. If bolts or screws are tightened using...

LMC or dering i nfor mation Monobloc bell housing 4 - Pump interface codes Holes rotated through 45°in relation to standard position (page 51) Inspection hole Drain hole + inspection hole Double set of holes Black anodized finish Clearance holes at motor interface Customer specification 450 2 - Product revision code A 3 - Bell housing FSJ Foot bracket N.B. Bell housings with FI/DI options are supplied complete with threaded closure plug 1 - Product revision code A Black anodized finish N.B. For customization features other than those indicated on this page, contact the Technical and Sales Department...

Motors base B M C series The motors base of the BMC series are derived from standard LMC monobloc bell housings, and used as bases to which flanges of the FR/FP5/FP6 series can be fitted either to increase the height of the bell housing or to allow machining of the pump interface, not possible with a standard monobloc housing Motor base for installation of auxiliar y flange FR1 H1 28° TABLE 4 Electric motor, 4-pole, 1500 rpm Dimensions of BMC motor base Motor base code Frame size Foot bracket code Assembly kit code (motor base + flange): KVG1 • For pump flange codes, see page 13 3D drawings available...

BMC mot or bas e Motor base for installation of auxiliar y flange FP5 H1 28° TABLE 5 Dimensions of BMC motor base Electric motor, 4-pole, 1500 rpm Frame size Motor base code Foot bracket code Assembly kit code (motor base + flange): KVG5 • For pump flange codes, see page 13 Motor base for installation of auxiliar y flange FP6 H1 28° TABLE 6 Dimensions of BMC motor base Electric motor, 4-pole, 1500 rpm Frame size Motor base code Foot bracket code Assembly kit code (motor base + flange): KVG6 • For pump flange codes, see page 13 3D drawings available on website www.mpfiltri.com, under TOOLS/2D/3D...

Compar at ive table MP Filtri

BMC motors base Motor base for installation of auxiliar y flange FP7 H1 28° TABLE 7 Bell housing dimensions, BMC motor base Electric motor, 4-pole, 1500 rpm Frame size 225 Motor base code Assembly kit code (base module + flange): KVG7 • For pump flange codes, see page 13 3D drawings available on website www.mpfiltri.com, under TOOLS/2D/3D CAD COMPONENTS 12

TABLE 8 Flange Code Possible pump interfaces Possible pump interfaces Complete the order designation with the pump interface code: E.g. FP5026S023 3D drawings available on website www.mpfiltri.com, under TOOLS/2D/3D CAD COMPONENTS 13