MHT Vane Motors - Eaton
Vickers Vane MotorsMHT Vane MotorsHigh Torque, Low SpeedSingle Torque, Multi-TorqueRev. 1/98679
Vickers, Incorporated 1994All Rights Reserved
IntroductionVickers MHT vane motors are theefficient, economical answer to a widerange of power needs. Thesehigh-quality motors are the ideal choicewhen:D the combination of high torque andlow speed is requiredD a high power-to-weight/size ratio isrequiredD hazardous conditions or other designfactors make it desirable that theelectrical prime power source belocated some distance away from themachinery driving motor.ApplicationsMHT motors can be used in a widevariety of industrial and mobileapplications, for example:D Continuous casting machinesD Straightener drivesD Wheel rim rolling machinesD Forging manipulatorsD Winding machine drivesD Sheet line accumulator systemsD Pre-plasticizer drivesFeatures and BenefitsMulti-Torque SeriesD Available in shaft-type or shaftless.Shaftless MHT motors can simplifyinstallations, since the drivenmachine’s splined shaft can be drivendirectly by the motor. Shaft-to-shaftcouplings are thereby eliminated.The Vickers multi-torque MHT motor issimilar to the standard MHT motor inapplication and performance benefits,with one major difference – the design ofthe multi-torque motor permits choosinga number of different speed and torquecombinations for any given flow andpressure.D MHT motors provide variable powerthroughout their entire pressure andspeed range, and perform smoothlyand efficiently in either direction ofrotation.D Shaftless MHT motors permit coolingwater to be run through a hollowdriving shaft, for example, drivingplastic injection molding and extruderscrews.D Long operating lifeD Stepless, infinitely variable speedcontrol.D Quick shaft reversing by reversingfluid flow.Standard MotorsFor example, under conditions wheremaximum torque is not required, topmotor speed can be achieved using thepartial torque circuit shown. Conversely,maximum torque could also be achievedat less than maximum motor speed,using the full torque circuit shown.This versatility permits substantialsavings in pump size and costs formany applications without sacrificingnecessary torque or speedcharacteristics.D MHT multi-torque motors offer theability to change the torque-to-speedratios without requiring gear shiftingmechanisms.Vickers standard MHT motors are idealfor rotary power apllications requiringhigh torque at low speed. They providevariable power throughout their entirepressure and speed range, and performefficiently and smoothly in eitherdirection of rotation.D Machine tool spindle drivesD Coil windersD ConveyorsBecause these motors can eliminate theneed for gear boxes or other externalspeed reducing devices, they offer theadded advantage of compactness.D Feeder screwsD Rolling mill screwdown drivesD Drilling, boring machinesD Crushers1
ContentsRatings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Single Torque, Single Displacement Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Multi-Torque, Multi-Displacement Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Model Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Mounting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Shaft Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Functional Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Bearing Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Inertia of Rotating Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11MHT32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11MHT50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11MHT70 and MHT90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12MHT130 and MHT150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12MHT150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13MHT250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14MHT500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15MHT750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16MHT1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16MHT90/45/45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17MHT380/190/190 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18MHT440/250/190 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18MHT500/250/250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Installation Dimensions – Single Torque ModelsMHT 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20MHT 50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21MHT 70 & MHT 90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22MHT 130 & MHT 150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23MHT 190 & MHT 220 & MHT 250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24MHT 380 & MHT 440 & MHT 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25MHT 750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26MHT 1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Installation Dimensions – Multi-Torque ModelsMHT 70/35/35 & MHT 90/45/45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28MHT 130/75/75 & MHT 150/75/75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29MHT 250/125/125 & 250/125/95 & 190/95/95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30MHT 380/190/190 & 440/250/190 & 500/250/250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31MHT 750/375/375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32MHT 1000/500/500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Fluid Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
RatingsRatings – Single Torque, Single Displacement ModelsModel &TheoreticalOutputp TorqueqNm/6,9 bar(lb. ft./100 Pressurebar (psi)Maximum Speed (rpm)@138 bar (2000 psi)(p )and @207 bar (3000 psi)Weight (approximate)RatedStalledShaftlessWith ShaftMHT3243 HT5068 )MHT7095 0)MHT90122 40)MHT130176 58)MHT150203 358)MHT190258 440)236(520)MHT220298 440)236(520)MHT250339 440)236(520)MHT380515 620)327(720)MHT440597 620)327(720)MHT500678 620)327(720)MHT7501017 784)408(900)MHT10001356 6(962)508(1120)Case port pressure is 0–1.7 bar (0–25 psi) for all models2
Ratings – Multi-Torque, Multi-Displacement ModelsModel &TheoreticalOutputp TorqueqNm/6,9 bar(lb. ft./100 psi)Theoretical Displacementcc3/rev(in( surebar (psi)Maximum Speed(rpm) @138 bar (2000 psi)(p )and @207 bar (3000 psi)Weight (approximate)ShaftlessWith ShaftRatedStalled865,4 & 432,7(52.8 & 90/45/45122/61/61(90/45/45)1112,9 & 556,4(67.9 & 130/75/55176/102/75(130/75/55)1605 & 1128(98, 56,5 & �150/75/75203/102/102(150/75/75)1850,7 & 925,4(113 & �190/95/95258/129/129(190/95/95)1179,2 & 2358,5(72 & MHT–220/125/95298/170/129(220/125/95)2718,7 & 1539,5 & 1179,2(166 & 94 & HT–250/125/125339/170/170(250/125/125)3079,1 & 1539,5(188 & HT–380/190/190515/258/258(380/190/190)4716,9 & 2358, 5(287 & 0)MHT–440/250/1901056/339/258(440/250/190)5437,5 & 3079,1 & 2358,5(332 & 188.5 & 0)MHT–500/250/250678/339/339(500/250/250)6158,2 & 3079,1(376 & MHT–750/375/3751017/508/508(750/375/375)9253,6 & 4635(565 & MHT–1000/500/5001356/678/678(1000/500/500)12356 & 6178(754 & )3
Model Code1Standard Series Model Code1Special SealsOmit if not requiredF3 – Seals for use with mineral oil andfire resistant fluids2Model SeriesMHT – High torque, low speed,vane motorMulti-torque Series Model Code1Special SealsOmit if not requiredF3 – Special seals for use with mineraloil or fire resistant fluids2Model SeriesMHT – High torque, low speed,vane motorTheoretical Output Torqueper 100 psi differentialNm (lb. ft.)1000/500/500 –1356/678/678(1000/500/500)3750/375/375 –1017/508/508(750/375/375)500/250/250 –678/339/339(500/250/250)440/250/190 –678/339/258(5000/250/190)4233Theoretical Output Torqueper 100 psi differentialNm (lb. ft.)Standard series32 – 43 (32)50 – 68 (50)70 – 95 (70)90 – 122 (90)130 – 176 (130)150 – 203 (150)190 – 258 (190)220 – 298 (220)250 – 339 (250)380 – 515 (380)440 – 597 (440)500 – 678 (500)750 – 1017 (750)1000 – 1356 (1000)Theoretical Output Torque(continued)380/190/190 –515/258/258(380/190/190)250/125/125 /354546Shaft typeR1 – Standard solid typeN1 – No shaft5Design NumberSubject to change6Special FeatureDenoted special motor supplied with onebearing and no shaft (omit when notapplicable). Install bearing on either sideS27 – Quiet version for MHT 130/1504Shaft typeR1 – Standard solid typeN1 – No shaft5Design NumberSubject to change6Special FeatureDenotes special motor.S20 – Quiet version forMHT 130/220/380S27 – Quiet version for MHT 130/150S30 – Quiet version for MHT500/750/1000
Installation DataMounting InformationThis information points outareas of the motor where specificinformation is referenced. Refer to therespective “Installation Dimensions.”D The motor housing will accept noaxial loading except at the followingdiameter bolt circles.MHT ModelBolt circlemm (inch)32203,2 (8.00)50250,8 690/375/3151000/500/500266,7 (10.50)298,5 (11.75)342,9 (13.50)D Mounting surface must be flat within0.025 (0.001 in.) and perpendicular tothe axis within 0.025 (0.001) TIR.D If the application requires themounting face to be sealed, an areahas been provided for use with thefollowing O-rings:MHTModel3250VickerspartnumberI.D. /250750/375/375690/375/3151000/500/500D Motors may be supplied with thethreads drilled out of the mountingsurface body for through mountingwith standard studs or screws, ifrequired. Torque as shown in thefollowing table:Thru studs are not included. –S13threads drilled from shaft end body;–S18 from head end Torque Nm (lb. ft.)122 6(90 5)169 6(125 /3151000/500/500203 20(150 15)D The splined rotor will not accept anyshaft translation, (sliding axiallythrough spline).D If the shaft must absorb axial forces,preloading will be required to preventany translation. Consult your Vickersrepresentative.5
D Conventional mounting is with sixbolts through back of mounting plate,maximum length into motor andtorque. Refer to the following table:MHTmodelMaximumlengthTorqueintoNmmotor(lb. 0)D Motor mounting orientation isunrestricted as to port location andmounting face. The shaft mayprotrude from either body.D Pilot must be a non-binding slip fitand must not exceed 5,84 mm(0.230) inch maximum into motor.6Suggested shaft seal size is accordingto the following table:MHTmodelShaft seal sizemm (inch)5064,26 (2.53)70/35/3590/45/4569,85 (2.75)130150130/75/75150/75/7579,5 5/375690/375/3151000/500/500CircuitD Circuit design should protect themotor from pressure surges andcavitation.CAUTION: CASE FLOW SHOULD BEUNRESTRICTED AND CHECKED TOENSURE 1,89 lpm (0.05 USgpm)MINIMUM.Case flow may be increased by applyingback pressure to the motor return port.Operating the motor at a minimumpressure of 35 bar (500 psi) applied atthe inlet port will provide the requiredcase flow.Thermal shocks in excess of 10 C(50 F) are not recommended. When themotor is cold or the oil is hot, start andstop motor until temperatures are equal.104,78 (4.125)Intermittent (15 minutes or less)unloaded running is permitted after aproper start and warm-up to 400 rpm,provided the minimum case flow isminimum case flow is maintained.
D With a shaftless assembly, theShaft Informationcustomer will provide its ownbearings and center the rotor with.004 TIR concentricity to the pilotdiameters.D Shaft spline must slip fit into rotor.D When disassembling or installing ashaft, there must be no binding oraxial force applied.D The shaft spline should be packedD Shaft design must provide splinegrease retention. The spline is notlubricated by system fluid. Customershaft needs no shaft seal surface forsystem flu
130 150 130/75/75 150/75/75 298,5 (11.75) 190 220 250 380 440 500 750 1000 190/95/95 220/125/95 250/125/125 380/190/190 440/250/190 500/250/250 750/375/375 690/375/315 1000/500/500 342,9 (13.50) Mounting surface must be flat within 0.025 (0.001 in.) and perpendicular to the axis within 0.025 (0.001) TIR. The splined rotor will not accept any
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MHT-CET EXAMINATION SET-A BIOLOGY MHT-CET Test The distribution of marks subjectwise in each part is as under for each correct response. Each question has 4 choices (A), (B), (C) and (D), out of which ONLY ONE i
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