GEAR BOXES AND MOTORS

CHIARAVALLI GROUP world: much more than a collection of perfects mechanical components

BEVEL GEARS ELECTRIC MOTORS

INDEX page 2 page 2 page 3 page 4 page 4 page 5 page 6 page 7 page 8 page 9 page 10 page 11 page 12 page 18 page 19 page 20 page 21 page 22 page 23 page 24 CHM-CHMR-CHME-CHMRE WORM GEARED MOTORS AND WORM GEAR UNITS CHM worm geared motors and worm gear units Premessa - Introduction Quantity of oil in litres - Motor mounting flanges CHM/CHMR/CHME/CHMRE Designation - Example order Mounting position Performance and dimensions CHM 025/CHM 150 with 4-pole motors CHMR Dimensions CHPC/CHM worm gear with pre-stage module Performance CHTPC/CHM with 4-pole motors CHPC/CHM Dimensions Double worm gears CHM/CHM-CHME...

INDEX page page page page page page page page page page page page page page CHO BEVEL HELICAL GEAR UNITS Introduction General information Radial loads FR Lubrication Maintanance and designation Ratios and IEC motors adapters Gear unit selection tables Dimension sheet Accessories and mounting positions Exploded drawing and spare part list CHO use and maintenance instructions page 88 page 89 page 90 page 91 page 92 page 93 page 94 page 96 page 108 page 116 page 119 page 120 CHA SHAFT MOUNTED SPEED REDUCERS Introduction General information Service factor Fs Radial loads FR / Backstop device Lubrication...

SYMBOLS P = Power (Kw) i = Ratio T = Torque (Nm) n = Speed (RPM) Fr = Radial Load (N) Fa = Axial Load (N) f.s. = Service Factor D = Diameter (mm) 1 Kw = 1,36 HP 9,81 N = 1 Kp 1 2 Input Output GENERAL INFORMATION POWER P P1 * = P2 P1 = Input power P2 = Output power = Transmission efficiency 2 VELOCITA’ DI ROTAZIONE n n1 = Input speed n2 = Output speed An output speed ≤ 1400 rpm is suggested so as to optimize the working condition and extend the service life. SYMBOLS - GENERAL INFORMATION T2 = Output torque T2n = Rated output torque P1 = Input power = Transmission efficiency fS = Service factor...

RADIAL LOADS FR The radial loads is proportional to the requested torque and inversely proportional to the transmission member diameter following this formula. FR = FR = Radial load T = Nm (Torque) T.e.f. = Transmission element factor T.e.f. = 1,15 gear = 1,4 chain spocket = 1,75 v-pulley = 2,5 flat-pulley D = Transmission element diameter When the radial loads is not applied on the centre line of the shaft it is necessary to use the following formula. FR = Radial load on the centre line a,b,x = see tables page 9-46-47-77-78 All, gearboxes and variators are supplied, CHA type excluded, complete...

SERVICE FACTOR FS The service factor mainly depends on three parameters: - type to load: U - M - H - run time: h/day - start-up frequency: na/h U = uniform M = moderate H = heavy na/h = starts/hour LOAD TYPE - APPLICATION Conveyor belts for light weights - centrifugal pumps - lifts - bottling machines M SERVICE FACTOR FS - V6/B8 MOUNTING POSITION Conveyor belts for heavy weights - packing machines - wood working machines - gear pumps Mixers - bucket elevators - tooling machines - machinery for bricks - vibrators V6/B8 MOUNTING POSITION When the worm gearboxes mounting position is V6 or B8, with...

CHC SERIES HELICAL GEAR UNITS

INTRODUCTION CHC series helical gear units is a new generation product, which designed basing on the modular system. It can be connected respectively with motors such as standard motor, brake motor, explosion-proof motor, IECmotor B5 - B14. This kind of product is widely used in drive fields such as textile, foodstuff, beverage, chemical industry, packaging and so on. PRODUCT FEATURES · Modularity · High efficiency · Low noise · Universal mounting · Aluminum housing, light in weight · Gears in carbonize hard, grinded · Lubricant maintenance free CHC Series helical gear units are manufactured...

ASSEMBLING POSSIBILITY Input flange Output flange ORDER EXAMPLE CHC 25PB 28,9 80B5 B3 Type CHC Size 16*-20-25-30-35-40 The number indicates the output shaft diameter *CHC 16 on request P foot F flange no foot no flange Flange type 1 2 3 Foot type Ratio see catalogue IEC Motor flange size Version B5-B14 Mounting position B3-B8-B6-B7 V5-V6-B5-V1-V3 If the motor is also required please specify Size Power Poles Voltage Frequency Flange

GENERAL INFORMATION POWER P P1 * = P2 P1 = Input power P2 = Output power = Transmission efficiency ROTATION SPEED n n1 = Input speed n2 = Output speed An output speed ≤ 1400 rpm is suggested so as to optimize the working condition and extend the service life. Input speed higher are allowed following the table below. M2 = Output torque M2n = Rated output torque P1 = Input power = Transmission efficiency fS = Service factor 2D and 3D drawings available on the web site www.chiaravalli.com Quantity, availability and prices with Chiaravalli B2

RADIAL LOADS FR The radial loads is proportional to the requested torque and inversely proportional to the transmission member diameter following this formula. FR = FR = Radial load T = Nm (Torque) T.e.f. = Transmission element factor T.e.f. = 1,15 gear = 1,4 chain spocket = 1,75 v-pulley = 2,5 flat-pulley D = Transmission element diameter When the radial loads is not applied on the centre line of the shaft it is necessary to use the following formula. FR = Radial load on the centre line a,b,x = see table Output shaft radial loads & axial loads FR, FA

LUBRICATION TYPES OF LUBRICATION Lubrication type MOUNTING POSITION AND TERMINAL BOX ORIENTATION B3 CHC - LUBRICATION - MOUNT. POSIT. AND TERMIN. BOX ORIENTAT. Normal position Fill quantity in litres Fill quantity in litres The CHC gearboxes are supplied with Shell Tivela S 320 oil for STANDARD position, when mounted in V6/V3 it is necessary to add the correct quantity of oil.

RATIO AND IEC MOTOR ADAPTERS CHC 20 CHC - RATIO AND IEC MOTOR ADAPTERS * CHC 16 Only on request Ratios are rounded B= Metal reduction bushing

GEAR UNIT SELECTION TABLES CHC - GEAR UNIT SELECTION TABLES 2D and 3D drawings available on the web site www.chiaravalli.com Quantity, availability and prices with Chiaravalli B2B