Worm gear reducers and Worm geared motors VSF SERIES NMRV

Transcript

1 VSF SERIES Worm gear reducers and Worm geared motors NMRV

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3 Contents Symbols... Specfcaton... Modularty... Servce factor... Crtcal applcatons... Installaton... Overhung load ()... Moments of nerta... Lubrcaton... Desgn features... Desgnaton... Versons... Standard nput flange... Effcency... Irreversblty... Gear mesh data... Angular backlash... Desgn features HA31... Desgn features HW... Motor mountng wth nput flange - NMRV... Motor mountng wth nput flange - NMRV-P... Mountng postons... Ratngs NMRV/NMRV-P... Ratngs NRV/NRV-P... Dmensons... Electrc motors... Accessores Symbols P = Power ( HP ) M = ( n-lb ) n = Speed ( ) = Reducton rato ηd = Dynamc effcency F = Load ( lb ) m = Weght ( lb ) s.f. = Servce factor 1 = Input shaft 2 = shaft r = Overhung load () a = Thrust load s = Statc d = Dynamc max = Maxmum mn = Mnmum Specfcaton On request, reducers can be manufactured n complance wth the drectve: ATEX 94/9/CE categores: 2GD T=135 C (T4) 3GD T=135 C (T4) wth n1 max = 1750 rpm 1

4 Modularty HA31 HA31 - Pre-stage reducton unt (NMRV ) NMRV NMRV NMRV Worm geared motor NMRV-NMRV... NMRV... - NMRV... - Combned worm geared motor NRV NRV NRV Worm gear reducer NRV-NMRV... NRV... - NMRV... - Combned worm gear reducer 2

5 Modularty NMRVpower NMRVpower /HW30 NMRVpower /HW40 nput kt NMRVpower Worm gear reducers and gearmotors NMRVpower base (dstrbuton network) HW kt NMRVpower/HW - Worm gear reducers and gearmotors wth pre-stage NMRV-NMRVpower... NMRVpower-NMRV... NMRVpower-NMRVpower... NMRV-NMRVpower... - Combned worm gear reducers and gearmotors NRVpower NRVpower Worm gear reducer NRV-NMRVpower... NRV-NMRVpower... - Combned worm gear reducer 3

6 Servce factor The servce factor (s.f.) depends on the operatng condtons the gear reducer s subjected to. The parameters that need to be taken nto consderaton to select the most adequate servce factor correctly comprse: - Type of load of the operated machne : A - B - C - Length of daly operatng tme: hours/day ( ) - Start-up frequency: starts/hour (*) LOAD: A - unform fa 0.3 B - moderate shocks fa 3 C - heavy shocks fa 10 fa = Je/Jm - Je (n-lb 2 ) moment of reduced external nerta at the drve-shaft - Jm (n-lb 2 ) moment of nerta of motor If fa > 10 call our Techncal Servce. A - Screw feeders for lght materals, fans, assembly lnes, conveyor belts for lght materals, small mxers, lfts, cleanng machnes, fllers, control machnes. B - Wndng devces, woodworkng machne feeders, goods lfts, balancers, threadng machnes, medum mxers, conveyor belts for heavy materals, wnches, sldng doors, fertlzer scrapers, packng machnes, concrete mxers, crane mechansms, mllng cutters, foldng machnes, gear pumps. C - Mxers for heavy materals, shears, presses, centrfuges, rotatng supports, wnches and lfts for heavy materals, grndng lathes, stone mlls, bucket elevators, drllng machnes, hammer mlls, cam presses, foldng machnes, turntables, tumblng barrels, vbrators, shredders. Crtcal applcatons NMRV V5: 1500 < n1 < B B n1 > 3000 B B B B A A V6 B B B B B B NMRV-P V5: 1500 < n1 < 3000 B B B B n1 > 3000 B B A A V6 B B B B H A31 V5 - V1: 1500 < n1 < n1 > 3000 B V3 - V6 B HW+NMRV-P < n1 < 3000 B B B B n1 > 3000 A A A A V5 - V6 B B B B A Applcaton not recommended B Check the applcaton and/or call our techncal servce 4 The ratngs gven n the catalogue correspond to mountng poston B3 or smlar, e. when the frst stage s not entrely mmersed n ol. For other mountng postons and/or partcular nput speeds, refer to the tables that hghlght dfferent crtcal stuatons for each sze of gear reducer. It s also necessary to take due consderaton of and carefully assess the followng applcatons by callng our Techncal Servce: - To avod the use as multpler. - Use n servces that could be hazardous for people f the gear reducer fals. - Applcatons wth especally hgh nerta. - Use as a lftng wnch. - Applcatons wth hgh dynamc stran on the case of the gear reducer. - In places wth T under 23 F or over 104 F. - Use n chemcally aggressve envronments. - Use n a salty envronment. - Mountng postons not envsaged n the catalogue. - Use n radoactve envronments. - Use n envronmental pressures other than atmospherc pressure. Avod applcatons where even partal mmerson of the reducer s requred. The maxmum torque (*) that the reducer can support must not exceed two tmes the nomnal torque (s.f.=1) stated n the ratngs tables. Wth S3 servce t s possble to ncrease transmtted torque accordng to rato, nput speed and applcaton duraton, n ths case please contact our Techncal servce. (*) ntended for momentary overloads due to startng at full load, brakng, shocks or other causes, partcularly those that are dynamc.

7 Installaton To nstall the gear reducer t s necessary to note the followng recommendatons: - Check the correct drecton of rotaton of the gear reducer output shaft before fttng the unt to the machne. - In the case of partcularly lengthy perods of storage (4/6 months), f the ol seal s not mmersed n the lubrcant nsde the unt, t s recommended to change t snce the rubber could stck to the shaft or may even have lost the elastcty t needs to functon properly. - Whenever possble, protect the gear reducer aganst solar radaton and bad weather. - Ensure the motor cools correctly by ensurng good passage of ar from the fan sde. - In the case of ambent temperatures < 23 F or > 104 F call the Techncal Servce. - The varous parts (pulleys, gear wheels, couplngs, shafts, etc.) must be mounted on the sold or hollow shafts usng specal threaded holes or other systems that anyhow ensure correct operaton wthout rskng damage to the bearngs or external parts of the unts. - Lubrcate the surfaces n contact to avod sezure or oxdaton. - Pantng must defntely not go over rubber parts and the holes on the breather plugs, f any. - For unts equpped wth ol plugs, replace the closed plug used for shppng wth the specal breather plug. - Check the correct level of the lubrcant through the ndcator, f there s one. - Startng must take place gradually, wthout mmedately applyng the maxmum load. - When there are parts, objects or materals under the motor drve that can be damaged by even lmted spllage of ol, specal protecton should be ftted. Overhung load The value of the admssble Overhung load () (lb) s gven n the tables relatng to the ratngs of the gear reducer at ssue. It s related to the load appled on the centre lne of the shaft and n the most unfavourable condtons of angle of applcaton and drecton of rotaton. The maxmum admssble thrust loads are 1/5 of the value of the gven Overhung load () when they are appled n combnaton wth the Overhung load (). The tables relatng to the output shafts gve the maxmum admssble value. Ths value must never be exceeded snce t relates to the strength of the case. Partcular condtons of Overhung load () hgher than the lmts of the catalogue may occur. In ths case, call our Techncal Sevce and provde detals on the applcaton: drecton of the load, drecton of rotaton of the shaft, type of servce. In case of double extenson shafts wth radal load appled on both ends, the max. admssble radal loads must be defned accordng to the specfc runnng condtons, n ths case call our Techncal Servce. Partcular condtons of radal load hgher than the lmts of the catalogue may occur. In ths case, call our Techncal Sevce and provde detals on the applcaton: drecton of the load, drecton of rotaton of the shaft, type of servce. Fre (lb) Resultng Overhung load () M (n-lb) on the shaft D (n) Dameter of the transmsson member mounted on the shaft Fr (lb) Value of the maxmum admtted Overhung load () Fr1-Fr2 (see relatve tables) fz = 1.1 gear pnon 1.4 chan wheel 1.7 v-pulley 2.5 flat pulley When the resultng Overhung load () s not appled on the centre lne of the shaft, t s necessary to adjust the admssble Overhung load () Fr1-2 wth the followng formula: a, b = values gven n the tables on page 6 x = dstance from the pont of applcaton of the load to the shaft shoulder The Overhung load () on the shaft s calculated wth the followng formula: 5

8 Input Overhung load ()s When the Overhung load () s not on the centre lne of the shaft, t s necessary to adjust the admssble Overhung load () Fr1 wth the followng formula: (**Fr 1 ) Max. admssble value of the reducer; verfy max. admssble value on ratngs tables. NRV-P/NRV a b Fr1 max(**) IHW a 2.80 b 2.01 Fr1 max(**) Overhung load ()s When the Overhung load () s not on the centre lne of the shaft, t s necessary to adjust the admssble Overhung load () Fr2 wth the followng formula: (**Fr 2 ) Max. admssble value of the reducer; verfy max. admssble value on ratngs tables. NMRV-P/NMRV a b Fr2 max(**)

9 Moments of nerta Followng values are ndcatve only and refer to gear reducers ftted wth nput flange. These values refer to maxmum moment of nerta. NMRV J *1E-4 [kg*m 2 ] lb-n NMRV-P J *1E-4 [kg*m 2 ] lb-n H J *1E-4 [kg*m 2 ] lb-n 2 A Lubrcaton In cases of ambent temperatures not envsaged n the table, call our Techncal Servce. In the case of temperatures under -22 F or over 140 F t s necessary to use ol seals wth specal propertes. For operatng ranges wth temperatures under 32 F t s necessary to consder the followng: 1 The motors need to be sutable for operaton at the envsaged ambent temperature. 2 The power of the electrc motor needs to be adequate for exceedng the hgher startng torques requred. 3 In case of cast-ron gear reducers, pay attenton to mpact loads snce cast ron may have problems of fraglty at temperatures under 5 F. 4 Durng the early stages of servce, problems of lubrcaton may arse due to the hgh level of vscosty taken on by the ol and so t s wse to have a few mnutes of rotaton under no load. The ol needs to be changed after approxmately 10,000 hours. Ths perod depends on the type of servce and the envronment where the gear reducer works. For unts suppled wthout ol plugs, lubrcaton s permanent and so they need no servcng. NMRV B B B6-B V V H A31 B NMRV-P B3 B8 B6-B7 V V HW B Quantty of ol n ltres ~ Lubrcant quanttes are only ndcatve. For correct fllng always refer to the sght glass or the dpstck, when ths s suppled. Any ol level dfferences can be caused by constructve tolerances but also on the mountng poston or the assembly scheme of the customer. Therefore t s very mportant for the customer to check ol level and f necessary to add the necessary quantty. The gear reducers sze are suppled complete wth lubrcant for lfe, synthetc ol, ENI TELIUM VSF. They can be mounted n any poston envsaged n the catalogue, except for NMRV and NRV for whch you must to specfy the mountng poston. For szes 130 and 150 t s necessary to specfy the poston, otherwse the gear reducers are suppled wth the quantty of ol relatng to pos. B3. Only reducton unts 130 and 150 are ftted wth breather, level and ol dranage plugs. It s necessary, after nstallaton, to replace the closed plug used for transportaton wth the breather plug suppled wth the unt. The pre-stage helcal modules are suppled complete wth lfe-long lubrcant, synthetc ol, ENI TELIUM VSF. Lubrcaton s separated from that of the worm gear reducers. 7

10 Lubrcaton *T C ISO/SAE ENI SHELL ESSO MOBIL CASTROL BP HA31 (-5) (+40) ISO VG220 BLASIA 220 OMALA OIL220 SPARTAN EP220 MOBILGEAR 600 XP220 ALPHA MAX 220 ENERGOL GR-XP220 Mneral ol NMRV NMRV-P HW (-25) (+50) ISO VG320 TELIUM VSF320 TIVELA OIL S320 - SHC 632 ALPHASYN PG320 ENERGOL SG-XP320 Synthetc ol - standard supply - Specfcatons of lubrcants recommended by Motovaro S.p.A. * Workng ambent temperature Specal lubrcants *T C ISO VG Synthetc ol Ols for low temperature ENI (-25) (+20) KLUBER (-35) (+10) MOBIL (-40) (+5) KLUBER (-40) (+5) BLASIA 150 S (ISO VG150) KLUBERSYNTH GH 6-80 (ISO VG68) SCH 626 (ISO VG68) KLUBERSYNTH GH 6-32 (ISO VG32) Ols for low temperature - Food sector KLUBER (-30) (+10) KLUBERSYNTH UH (ISO VG100) Ols for hgh temperature KLUBER (-10) (+50) KLUBER (-10) (+70) KLUBERSYNTH GH (ISO VG460) KLUBERSYNTH GH (ISO VG680) Ols for hgh temperature - Food sector KLUBER (-10) (+50) KLUBERSYNTH UH (ISO VG460) - If specal lubrcant s requred please contact for Techncal Assstance Food sector KLUBER (-15) (+40) KLUBERSYNTH UH (ISO VG320) 8

11 Desgn features Motovaro products are suppled wth the followng surface treatment features: De-cast alumnum alloy cases for gears De-cast materals undergo the followng surface cleanng operatons: - De-burrng by means of a mechancally operated shearng system - Accurate shot-peenng - Washng and passvaton Grey-coloured cast-ron cases for gears - De-cast materals are always panted Pantng specfcatons: Orange-peel blue epoxy-polyester RAL Polyester resn based heat-hardenng powders,altered wth epoxy resns. Mechancal propertes - Tests carred out onto degreased Unchm whte lattens (flm thckness: 60 mcrons) comply wth the followng specfcatons: adherence (ISO2409), Erchsen drawng (ISO152), nverted shock (DIN53158), cone-shaped mandrel (DIN53151), hardness (ASTM D3363/74). Heat resstance - 24 HOURS AT 302 F. Corroson strength - ASTM B 117/97 salt fog from 100 to 500 hours dependng on the support s prelmnary treatment. Ratngs: Loadng capacty n accordance wth: ISO 14521, DIN 3996, BS 721, AGMA 6034, ISO 6336, DIN 3990, DIN 743, ISO 281 9

12 Desgnaton NMRV 050 HA31 FA *14 VS BS B3 Gearbox type (*) Sze NMRV 025 HA31 FA 5 PAM AS B3 NRV 030 FB 7.5 ECE BS B8 040 FC 10 NEMA VS B6 050 FD 15 PS B7 063 FE 20 V V Mountng poston Accessores (**) Pre-stage helcal module Executon flange Ø shaft Reducton rato Ø flange Input dmensons Double nput shaft Ftted for motor couplng IEC (160x14) Ftted for motor couplng Input shaft dameter NEMA (56C) E (ECE) (0.5) (*) NMRV: Worm geared motor / NRV: Worm reducton unt (**) arm - Low speed shafts - Cover 10

13 Desgnaton NMRV-P 063 HW030 FA C VS B3 NMRV-P 063 HW030 FA IEC B3 NRV-P 075 HW040 FB ECE B8 090 IHW040 FC NEMA B6 110 FD B7 FE V V Gearbox type Accessores Sze Mountng poston Pre-stage helcal module Ø shaft flange Ø flange Reducton rato Input dmensons Double nput shaft Ftted for motor couplng Ftted for motor couplng Input shaft dameter IEC (160x14) NEMA (56C) E (ECE) (0.5) 11

14 Desgnaton NMRV+NMRV-P FA C 40 BS1 B3 Gearbox type NMRV+NMRV FA 100 IEC AS1 NRV+NMRV FB 150 ECE AS2 NMRV+NMRV-P FC 200 NEMA BS1 NMRV-P+NMRV FD 250 BS2 NMRV-P+NMRV-P FE 300 VS1 NRV+NMRV-P VS2 NRV-P+NMRV PS PS Mountng poston Double worm gearbox assembly poston Combned geared motor Combned gear reducer Ø shaft Input dmensons Sze IEC (160x14) Ftted for motor couplng flange NEMA (56C) Ftted for motor couplng Reducton rato E (ECE) (0.5) Input shaft dameter 12

15 Versons NMRV NMRV NMRV F NMRV F NRV NRV NRV F NRV F NMRV-NMRV... NMRV-NMRV... F NRV-NMRV... NRV-NMRV... F HA31+NMRV... HA31+NMRV... F 13

16 Versons NMRVpower NMRVpower F NRVpower NRVpower F NMRV-NMRVpower... NMRVpower-NMRV... NMRVpower-NMRVpower... NMRV-NMRVpower... F NMRVpower-NMRV... F NMRVpower-NMRVpower... F NRV-NMRVpower... NRVpower-NMRV... NRVpower-NRVpower... NRV-NMRVpower... F NRVpower-NRV... F NRVpower-NRVpower...F NMRVpower/HW... NMRVpower/HW... F 14

17 Standard nput flange - IEC (*) Low profle key suppled by Motovaro. (**) Motor-rato combnaton not feasble. (+) Motor-rato combnaton not to be used, out of warranty terms. NMRV IEC N M P D Avalable s B B B B B B B B B B B B B B B B B B B B B /112B /112B B B B B B /112B /112B B B B B B /112B B B B B B * /112B B B B /112B

18 Standard nput flange - NEMA NMRV NEMA N M P D Avalable s C C C C TC C TC TC C TC TC TC TC TC TC TC TC TC TC

19 Non-standard nput flange - IEC The table below report possble confguratons strctly based on geometrc crtera. To determne the compatblty of a motor-gear unt assembly n terms of mechancal factors, double check the selected confguraton aganst the ratng charts for NRV/NRV-P ratngs. (*) Low profle key suppled by Motovaro. (**) For NMRV-P 110 flange Ø300 only possble soluton bush Ø38. (+) Motor-rato combnaton not to be used, out of warranty terms. NMRV NMRV-P P 140 D ** 38** 38** 38** 38** 38** 38** * 38* 38* 38* 38* 38* 38* the above values are expressed n mllmeters 17

20 HA31+NMRV - Predsposton HA31 1 NMRV x B5 B5 B B5 B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B B B B B B B B B B B B5 HA31 1 NMRV x B5 B B5 B5 B B5 B B5 B5 B B5 B B5 B5 B B5 B B5 B5 B B5 B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B5 B B B B B B B B5 18

21 NMRVpower/HW - Standard nput flange NMRVpower 063 / HW B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B B5 B B5 B B5 B B B B5 NMRVpower 075 / HW B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B B5 B5 B5-B B5 B5 B5-B B5 B B5 B B5 B B5 B B5 19

22 NMRVpower/HW - Standard nput flange NMRVpower090 / HW B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5 B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B B5 B5-B B5 B5-B B5 B5-B B5 B5-B B B5 NMRVpower110 / HW B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5-B14 B5-B14 B5-B B5 B5-B14 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B14 B5-B B5 B5-B B5 B5-B14 B5-B B5 B5-B B5 B5-B B5 B5-B14 NMRVpower/HW - Standard nput flange Pm B5 Dm Pm B Dm 20

23 NMRVpower/HW - Standard nput flange - NEMA HW030+NRV-P063 56C 140TC 180TC HW030+NRV-P075 56C 140TC 180TC

24 NMRVpower/HW - Standard nput flange - NEMA HW040+NRV-P090 56C 140TC 180TC HW040+NRV-P110 56C 140TC 180TC NMRVpower/HW - Standard nput flange IEC B5 Pm Dm mm 11mm mm 14mm mm 19mm mm 24mm IEC B14 Pm Dm mm 14mm mm 19mm mm 24mm NEMA Pm Dm 56C TC TC

25 NMRV/NMRV - NRV/NMRV - NMRV/NMRVpower - NRV/NMRVpower - NMRVpower/NMRV NRVpower/NMRV - NMRVpower-NMRVpower - NRVpower-NMRVpower s NMRV/NMRV 1 2 NMRV/NMRV / / NMRV/NMRV NRV/NMRV 1 2 NMRV/NMRV NRV/NMRV 1 2 NMRV/NMRVpower NRV/NMRVpower / / /

26 NMRV/NMRV - NRV/NMRV - NMRV/NMRVpower - NRV/NMRVpower - NMRVpower/NMRV NRVpower/NMRV - NMRVpower-NMRVpower - NRVpower-NMRVpower s NMRV/NMRV NRV/NMRV NMRV/NMRVpower NRV/NMRVpower 1 2 NMRV/NMRVpower NRV/NMRVpower 1 2 NMRVpower/NMRVpower NRVpower/NMRVpower NMRVpower/NMRV NRVpower/NMRV / / / / / / / / /

27 Effcency Effcency s a parameter whch has a major nfluence on the szng of certan applcatons, and bascally depends on gear par desgn elements. The gear mesh data table on page 26 shows dynamc effcency (n1=1750) and statc effcency values. Remember that these values are only acheved after the unt has been run n. Dynamc rreversblty Dynamc rreversblty s acheved when the output shaft stops nstantly when drve s no longer transmtted through the worm shaft. Ths condton requres a dynamc effcency of ηd < 0.5 (see table on page 26). Statc rreversblty Statc rreversblty s acheved when, wth the gear reducer at a standstll, the applcaton of a load to the output shaft does not set n moton the worm shaft. Ths condton requres a statc effcency of ηs < 0.5 (see table on page 26). Note: Vbratons and shocks can affect a gear reducer s rreversblty. Irreversblty ηd DYNAMIC IRREVERSIBILITY ηs STATIC IRREVERSIBILITY >0.6 dynamc reversblty >0.55 statc reversblty 0.5 ~ 0.6 low dynamc reversblty 0.5 ~ 0.55 low statc reversblty 0.4 ~ 0.5 good dynamc rreversblty <0.5 statc rreversblty <0.4 dynamc rreversblty - The table shows approxmate rreversblty classes. - The rreversblty condton of combned gear reducers s gven by the unts wth the lowest effcency. Drecton of rotaton - The helx s rght-handed. NMRV-NRV NMRV+NMRV - NRV+NMRV 25

28 Gear mesh data NMRV / NRV Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z g Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs Z γ Mx ηδ(1750) ηs

29 NMRV - NMRVpower - Angular backlash NMRV 030 NMRV 040 NMRV 050 NMRV-P 063 NMRV-P 075 NMRV-P 090 NMRV-P 110 NMRV 130 NMRV Such values n ARC-mnute can be detected on the output shaft, wth locked nput shaft. For applcatons requrng controlled or reduced backlash, please contact our techncal servce. Desgn features HA31 HA31 s the sngle stage helcal gear reducer avalable as pre-stage for the worm gear boxes NMRV040 and NMRV050 coupled wth Ø140 flange. Materals Gears 20MnCr5 (UNI7846) hardened and tempered wth shaved profle. Desgn features HW There are two pre-stage unts called HW. HW030 whch can be mounted on gearboxes NMRVpower and HW040 whch can be ftted wth gearboxes NMRVpower The pre-stage constructon s modular and therefore t can be suppled for varous motor (nput flange) wth B5 and B14 flange. The pre-stage s always coupled to the reducer NMRVpower. Materals Casng n alumnum alloy. Steel gears 20MnCr5 (UNI7846), hardened, tempered and carefully scraped. Motor mountng wth PAM flange - NMRV When the unt s suppled wthout motor, to ensure the correct assembly of the electrc motor, t s necessary to follow reccomendatons below. Check that the tolerances for the motor shaft and flange correspond to the latest IEC standard. Carefully clean the motor shaft, spgot and surfaces of the flange removng any traces of pant and drt. Proceed to the sleeve mountage to the motor shaft takng care to ensure the motor shaft and bearngs are not damaged by avodng excessve force and where necessary usng assembly equpment. Always use good procedures and practses that ensure correct operaton wthout rskng damage to the motor or unt bearngs. Motor key adjustment s not provded. 27

30 Motor mountng wth PAM flange - NMRV-P - When the unt s suppled wthout motor, to ensure the correct assembly of the electrc motor, t s necessary to follow reccomendatons below. - Check that the tolerances for the motor shaft and flange correspond to the latest IEC standard. - Carefully clean the motor shaft, spgot and surfaces of the flange removng any traces of pant and drt. - Verfy the correct key ftment and tolerances and then proceed fttng the bushng to the motor shaft (see pcture) takng care to ensure the motor shaft and bearngs are not damaged by avodng excessve force and where necessary usng assembly equpment. - Fnally assembly the motor to the unt ensurng ts bushn teeth are n perfect algnment wth the teeth of the unt bushng. Always use good procedures and practses that ensure correct operaton wthout rskng damage to the motor or unt bearngs. Motor key adjustment s not provded. NMRV - NMRVpower - Mountng postons - U verson s related to szes from NMRV/NMRV-P and NRV/NRV-P For these szes t s not necessary to specfy mountng poston. - For vertcal postons, check wth page 4. - For postons not shown above, t s necessary to contact our Techncal Servce. - Unless specfed otherwse, the standard postons are B3. - Mount the unt n the expected mountng poston. Otherwse contact our Techncal Servce. - Unless otherwse specfed, the gear reducer s suppled wth termnal box n poston 1. 28

31 NMRV+NMRV - NMRV+NMRVpower - Double worm gearbox assembly postons - The poston of the 1st reducer wth respect to the 2nd gear reducer depend on the verson. - The specfed mountng poston refers to the 2nd gear reducer. See page 28 for the possble mountng postons. - Unless otherwse specfed at the tme of order, combnaton groups are suppled n verson BS2. - Mount the unt n the expected mountng poston. Otherwse contact our Techncal Servce. - Unless otherwse specfed, the gear reducer s suppled wth termnal box n poston 1. 29

32 HA31+NMRV - Mountng postons - The mountng poston s U and t s vald for all mountng postons. - Mount the unt n the expected mountng poston. Otherwse contact our Techncal Servce. - Unless otherwse specfed, the gear reducer s suppled wth termnal box n poston 1. 30

33 HA31+NMRV - Executon - Unless specfed otherwse, the standard postons are BS/B3. - Unless otherwse specfed, the gear reducer s suppled wth termnal box n poston 1. - N.B.: When orderng, please always specfy executon and mountng poston. 31

34 NMRVpower/HW - Mountng postons - For NMRVpower/HW mountng poston B3 s vald also for B6-B7-B8-V6. Mountng poston V5 must be specfed. - For NMRV mountng poston B3 s vald also for B6-B7-B8. Mountng postons V5 and V6 must be specfed. - For NMRV mountng postons B3-B6-B7-B8-V5-V6 must be specfed. - Unless specfed otherwse, the standard postons are BS/B3. - Mount the unt n the expected mountng poston. Otherwse contact our Techncal Servce. - Unless otherwse specfed, the gear reducer s suppled wth termnal box n poston 1. 32

35 Worm Ratngs - Motor Speed 1750 rpm 0.08 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV030 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV025 56A NMRV030 56A NMRV040 56A NMRV040 56A NMRV030 56A NMRV040 56A NMRV040 56A HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV025 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV025 56B NMRV030 56B NMRV040 56B NMRV040 56B NMRV040 56B NMRV040 56B

36 0.16 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV050 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV050 56C NMRV030 63A4 NMRV030 48C NMRV040 63A4 NMRV040 56C NMRV050 63A4 NMRV050 56C NMRV040 63A4 NMRV040 56C NMRV050 63A4 NMRV050 56C NMRV040 63A4 NMRV040 56C NMRV050 63A4 NMRV050 56C NMRV-P063 56C NMRV040 63A4 NMRV040 56C NMRV050 63A4 NMRV050 56C NMRV-P063 56C NMRV050 63A4 NMRV050 56C NMRV-P063 56C 0.25 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV050 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV050 56C NMRV030 63B4 NMRV030 48C NMRV040 63B4 NMRV040 56C NMRV050 56C NMRV040 63B4 NMRV040 56C NMRV050 63B4 NMRV050 56C 34

37 0.25 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV-P063 56C NMRV040 63B4 NMRV040 56C NMRV050 63B4 NMRV050 56C NMRV-P063 56C NMRV040 63B4 NMRV040 56C NMRV050 63B4 NMRV050 56C NMRV-P063 56C NMRV050 63B4 NMRV050 56C NMRV-P063 56C NMRV-P075 56C NMRV050 63B4 NMRV050 56C NMRV-P063 56C NMRV-P075 56C 0.33 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV030 63D4 NMRV030 48C NMRV030 63D4 NMRV030 48C NMRV030 63D4 NMRV030 48C NMRV040 63D4/71A4 NMRV040 56C NMRV030 63D4 NMRV030 48C NMRV040 63D4/71A4 NMRV040 56C NMRV040 63D4/71A4 NMRV040 56C NMRV050 71A4 NMRV050 56C NMRV040 63D4/71A4 NMRV040 56C NMRV050 71A4 NMRV050 56C NMRV040 63D4/71A4 NMRV040 56C NMRV050 71A4 NMRV050 56C NMRV040 63D4/71A4 NMRV040 56C NMRV050 63D4/71A4 NMRV050 56C NMRV-P063 71A4 NMRV-P063 56C NMRV050 63D4/71A4 NMRV050 56C NMRV-P063 71A4 NMRV-P063 56C NMRV050 63D4/71A4 NMRV050 56C NMRV-P063 71A4 NMRV-P063 56C NMRV-P075 71A4 NMRV-P075 56C NMRV050 63D4/71A4 NMRV050 56C NMRV-P063 71A4 NMRV-P063 56C NMRV-P075 71A4 NMRV-P075 56C NMRV-P090 56C NMRV-P063 71A4 NMRV-P063 56C NMRV-P075 71A4 NMRV-P075 56C NMRV-P090 56C speed Servce factor torque Exact rato Max. torque shaft 0.50 HP Reducer Motor Reducer NEMA C-nput NMRV040 71B4 NMRV040 56C NMRV040 71B4 NMRV040 56C 35

38 0.50 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV040 71B4 NMRV040 56C NMRV040 71B4 NMRV040 56C NMRV050 71B4 NMRV050 56C NMRV040 71B4 NMRV040 56C NMRV050 71B4 NMRV050 56C NMRV050 71B4 NMRV050 56C NMRV-P063 71B4 NMRV-P063 56C NMRV040 71B4 NMRV040 56C NMRV050 71B4 NMRV050 56C NMRV-P063 71B4 NMRV-P063 56C NMRV050 71B4 NMRV050 56C NMRV-P063 71B4 NMRV-P063 56C NMRV-P075 71B4 NMRV-P075 56C NMRV050 71B4 NMRV050 56C NMRV-P063 71B4 NMRV-P063 56C NMRV-P075 71B4 NMRV-P075 56C NMRV-P063 71B4 NMRV-P063 56C NMRV-P075 71B4 NMRV-P075 56C NMRV-P090 56C NMRV-P063 71B4 NMRV-P063 56C NMRV-P075 71B4 NMRV-P075 56C NMRV-P090 56C NMRV-P063 71B4 NMRV-P063 56C NMRV-P075 71B4 NMRV-P075 56C NMRV-P090 56C 0.75 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV040 71C4 NMRV040 56C NMRV040 71C4 NMRV040 56C NMRV050 71C4/80A4 NMRV050 56C NMRV040 71C4 NMRV040 56C NMRV050 71C4/80A4 NMRV050 56C NMRV040 71C4 NMRV040 56C NMRV050 71C4/80A4 NMRV050 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV050 71C4/80A4 NMRV050 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV050 71C4/80A4 NMRV050 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV050 71C4/80A4 NMRV050 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV-P090 80A4 NMRV-P090 56C NMRV-P063 71C4/80A4 NMRV-P063 56C NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV-P090 80A4 NMRV-P090 56C

39 0.75 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV-P075 71C4/80A4 NMRV-P075 56C NMRV-P090 80A4 NMRV-P090 56C NMRV-P110 80A NMRV-P090 80A4 NMRV-P090 56C NMRV-P110 80A HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV050 80B4 NMRV050 56C NMRV040 56C NMRV040 56C NMRV050 80B4 NMRV050 56C NMRV040 56C NMRV050 80B4 NMRV050 56C NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV050 80B4 NMRV050 56C NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV050 80B4 NMRV050 56C NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P063 80B4 NMRV-P063 56C/143/145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P090 80B4 NMRV-P090 56C/143/145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P090 80B4 NMRV-P090 56C/143/145TC NMRV-P110 80B4 NMRV-P /145TC NMRV-P075 80B4 NMRV-P075 56C/143/145TC NMRV-P090 80B4 NMRV-P090 56C/143/145TC NMRV-P110 80B4 NMRV-P /145TC NMRV-P090 80B4 NMRV-P090 56C/143/145TC NMRV /145TC NMRV-P110 80B4 NMRV-P /145TC NMRV-P090 80B4 NMRV-P090 56C/143/145TC NMRV /145TC NMRV-P110 80B4 NMRV-P /145TC speed Servce factor torque Exact rato Max. torque shaft 1.50 HP Reducer Motor Reducer NEMA C-nput NMRV050 80D4 NMRV050 56C NMRV040 56C NMRV040 56C NMRV050 80D4 NMRV050 56C NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV050 80D4 NMRV050 56C 37

40 1.50 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV050 80D4 NMRV050 56C NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P063 80D4/90S4 NMRV-P063 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P075 80D4/90S4 NMRV-P075 56C/143/145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P110 80D4/90S4 NMRV-P /145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P110 80D4/90S4 NMRV-P /145TC NMRV-P090 80D4/90S4 NMRV-P090 56C/143/145TC NMRV-P110 80D4/90S4 NMRV-P /145TC NMRV130 90S4 NMRV /145TC NMRV-P110 80D4/90S4 NMRV-P /145TC NMRV130 90S4 NMRV /145TC NMRV-P110 80D4/90S4 NMRV-P /145TC 2.00 HP speed Servce factor torque Exact rato Max. torque shaft Reducer Motor Reducer NEMA C-nput NMRV050 56C NMRV050 56C NMRV-P063 90LA4 NMRV-P063 56C/143/145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV050 56C NMRV-P063 90LA4 NMRV-P063 56C/143/145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV-P063 90LA4 NMRV-P063 56C/143/145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P063 90LA4 NMRV-P063 56C/143/145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P110 90LA4 NMRV-P /145TC NMRV-P075 90LA4 NMRV-P075 56C/143/145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P110 90LA4 NMRV-P /145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P110 90LA4 NMRV-P /145TC NMRV-P090 90LA4 NMRV-P090 56C/143/145TC NMRV-P110 90LA4 NMRV-P /145TC NMRV-P110 90LA4 NMRV-P /145TC