Multiple Disc Clutches, Brakes And Clutch Brakes

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Multiple Disc Clutches,Brakes and Clutch BrakesHydraulic / Pneumatic Actuated Machine Tools Industrial Construction Agriculture Marine Mining Rail Oil Field Lawn & Turf EquipmentCopyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com

Logan Multiple Disc Clutches and BrakesStandard FeaturesSimple, Compact, High Torque DesignLogan Fluid or Air actuated clutches, brakes, and clutch-brake combinations are used ina wide variety of Machine Tool, Industrial, Marine, Municipal, Mining and Off-Highwayapplications. Our attention to quality and service, along with the ability to modify standard units to meet specific customer needs, has lead to the success and growth ofLogan Clutch Corporation.The Standard Logan product line is described in this catalog. It consists of three seriesof clutches and brakes with design features that are beneficial to their installation,operation and maintenance. Each series has model sizes with friction discs ranging indiameter from 2.5 inches (64 mm) to 8 inches (203 mm). All models can be furnishedwith standard lug or gear toothed friction discs. An overview of their torque capacitiesand typical configurations can be viewed on pages 7 and 8.Clutch ApplicationsWhen used as a clutch, the hub is keyed to the drive’s shaft. The drive cup is attachedto a bearing mounted gear, sprocket or sheave, which can freewheel about the sameshaft. The hub or the drive cup can be the driving or driven member.The above arrangement is used to transmit torque between two parallel shafts. Whentorque must be transmitted between in-line shafts, one half of a flexible coupling isused to connect the bearing mounted drive cup to the other shaft. Maximum Torque / Minimum EnvelopeHydraulic or Pneumatic ActuationWet or Dry OperationFast Engagement / Quick ReleaseMinimal Freewheeling DragCompact DesignCustom Bore Diameters / KeywaysOptions Modified Standards for Specific DesignRequirements Increased Torque and RPM CapabilityGeared Friction Disc and Drive Cup InterfaceCustom Drive CupsForced Cooling & Thrust Bearing LubricationMounted for Use as a Power-Applied BrakeBrake ApplicationsWhen S and P units are used as a brake, their hub is keyed to the shaft to be stopped.The drive cup is held stationary by the drive’s supporting frame. The R series allowseither it’s hub or drive cup to be the stationary member. An external cylinder port isprovided when the hub is held stationary.CylinderOperationLogan Clutch ComponentsPressure Plate SeparatorDiscInlet PortPressurizing the cylinder with fluid or air forces the piston to clamp and lock the frictionand separator discs. Torque is transmitted through the interfaces between hub andseparator disc splines, separator and friction discs, and friction disc tangs and drivecup slots. When pressure is removed, the release springs separate the separator discsand maintain a running clearance between separator and friction discs.LubricationFriction DiscBackplateDriveCupHubPistonR and S Series: Logan R and S Series Clutches and brakes are designed primarily forwet operation within gear boxes and transmissions. They can be partially submerged inan oil sump or an oil splash or spray can be directed on the outside diameter of the discpack. This wet operation aids in dissipating the thermal energy generated at the discfriction interfaces.ReleaseSpringTypical S Series clutchS series units require lubrication of the cylinder and thrust bearings. Usually, the oilsplash or spray directed at the disc pack provides sufficient lubrication. Lube ports areavailable for specific applications.P Series: P series clutch bearings are greased and sealed and do not require externallubrication. Torque ratings are based on dry operating conditions.Convenient to MaintainLogan Clutches and brakes do not require linkages, levers, or adjusting collars. At drivesystem service time, in-stock disc pack kits, seal kits, and bearing repair kits, alongwith factory installation data sheets make maintenance quick and easy. Factoryreconditioning is also available.S 450 Series clutch with splined bore and lubeport for increased lubrication.2Copyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com

Stationary Cylinder for Precise AlignmentThe actuating cylinder and pistonin the S series design do notrotate. They are bearing supported on the mounting hub andare held stationary by the external connectionto the inlet port. This bearing allows the separator discs and hub, and the shaft on which itmounts, to rotate about the cylinder and piston. A thrust bearing permits relative motionbetween the stationary piston and rotatingseparator discs. Because both bearings require lubrication, it is important to utilize lubeports provided and/or direct an oil spray orsplash at bearing surfaces.Features Hydraulic or PneumaticActuation Cylinder Inlet PortCylinderBearingFluid RetentionShieldSupportWasherPressurePlateWet OperationStationary Cylinder and PistonFast Response / Lower InertiaMinimal Actuating FlowPositive DisengagementCan be Modified to Meet SpecificApplication RequirementsTorque ratings are based on the P Series discpack operating in dry conditions thus requiring lower actuation pressure to achieve relatively high rates of torque.Inlet PortFeatures Hydraulic or Pneumatic Sealed Pre-lubricatedBearingsDry ApplicationsAlthough the R series design can withstandhigh rotational speeds, consideration must begiven to disengaging and freewheeling speedswhen the units are hydraulically actuated. Review the maximum disengaging speed for eachstandard model (see page 6).Sealed pHUBPressurePlateStationary Cylinder and PistonFast Response / Lower InertiaEasy InstallationMinimal Actuating FlowPositive DisengagementCan be Modified to Meet SpecificApplication RequirementsHigh Torque / Small EnvelopeThe R series design providesmaximum torque within a smallenvelope. In the R Series design,the piston and actuating cylinder,which is integral with the mounting hub, rotate. Bearings are not required. The shaft onwhich the hub mounts is rifled and crossdrilled to provide passage for the actuatingmedia. A press fit or cap seals are necessaryto prevent media pressure loss due to seepagepast the hub and shaft interface.PistonCylinderActuation DriveCupHUBEasy InstallationSealed Ball Bearings for Positive LubricationThe P series design is similar tothe S series, which is designedfor wet operation. The differencebetween the two models occursin the bearings. P Series bearings are prelubricated and sealed and do not require external lubrication.Piston Needle ThrustBearingBackplateFeatures Hydraulic or Pneumatic Actuation Does Not Require Bearings Short Axial Length Fast Response Minimal Drag, Positive Disengagement Light Weight Maximum Torque Minimal Actuating Flow Can be Modified to Meet SpecificPistonBackplateCylinderHUBDriveCupInlet PortApplication RequirementsCopyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com3

D minXYKH Inlet PortLube PortVNWEBS*AGHydraulic / Pneumatic Clutchfor Wet OperationJOperation:: Pressurizing the cylinder withfluid or air forces the piston to clamp andlock the friction and separator discs, andrelease springs. Torque is transferredthrough the clutch to the drive cup. Whenpressure is removed, the release springsseparate the separator discs and maintaina running clearance between separator andfriction disc surfaces. Torque ratings arebased on wet operation.Lubrication:: S Series clutches and brakesare designed primarily for wet operationwithin gearboxes and transmissions. Theycan be partially submerged in an oil sumpor an oil splash or spray can be directed atdisc pack and bearing surfaces. Lube portsare also available. Model250300350400450600Hydraulic or Pneumatic Actuation700Fast Engagement / Quick Release800Stationary Cylinder and Piston900Modified Standards for SpecificDesign RequirementsModel250ModelUnitTorque300Max. RPMFt. lbs.915000Nm123Ft. lbs.1314300300Nm178Ft. lbs.2083200350Nm282Ft. lbs.2792700400Nm378Ft. lbs.4042400450Nm548Ft. lbs.7252000550Nm983Ft. lbs.10151900600Nm1376Ft. lbs.15191600700Nm2060Ft. lbs.18631400800Nm2526Ft. lbs.31271300900Nm4240*See the chart on page 7 for incremental torque ratings.Modified standards available for specific designrequirements.250*Drive Cup Pilot BoreS Series DimensionsMaximum Torque / Minimum EnvelopeS Series Torque and Speed [email protected] 150 PSI (10.3) 248F666661212121212A max.1A 3490.3790.3690.41100.49120.5414L max. X 1.00.020.40.041.00.051.10.040.9Notes:Unless otherwise noted, upper value units areinches; lower value units are millimeters.1. Maximum allowable hub bore with standardrectangular key.Customer to specify dimensions A, B and C. Hubbore dimension A not to exceed maximumallowable bore.2. Maximum allowable hub bore with standardsquare key.3. American National Pipe Thread.Copyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com4Disc TangNo. of Tangs FCL550FeaturesRAA

D minXYKDrive CupH Inlet PortVNGWHubBEAS*Hydraulic/Pneumatic ClutchFor Dry OperationOperation: Pressurizing the cylinder withfluid or air forces the piston to clamp andlock the friction and separator discs, andrelease springs. Torque is transferredthrough the clutch to the drive cup. Whenpressure is removed, the release springsseparate the separator discs and maintain arunning clearance between separator andfriction disc surfaces. Torque ratings arebased on dry operation – thus requiring lowactuation pressure to achieve high rates oftorque.Lubrication: P Series clutches and brakesare designed primarily for dry operation.Bearings are greased and sealed and do notrequire external lubrication.FeaturesDesign RequirementsUnitFt. 5504 Max. RPM6003600Ft. lbs.6292700450Nm853Ft. lbs.11392200550Nm1544Ft. lbs.16092000600Nm2182Ft. lbs.24161600700Nm3276Ft. lbs.36091500800Nm4894*See the chart on page 7 for incremental torque ratings.Modified standards available for specific designrequirements.*Drive Cup Pilot BoreP Series Dimensions350P Series Torque and Speed [email protected] 100 PSI (6.9) BARDisc TangNo. of Tangs FCRAA600 Maximum Torque / Minimum Envelope Hydraulic or Pneumatic Actuation Fast Engagement / Quick Release Stationary Cylinder and Piston Modified Standards for minmminmminmmA max.1 A max.21.188 1.12530291.813 1.75046442.313 2.18859562.625 2.50067643.125 2.93879753.375 s:Unless otherwise noted, upper valueunits are inches; lower value units aremillimeters.Customer to specify dimensions A, B andC. Hub bore dimension A not to exceedmaximum allowable bore.1. Maximum allowable hub bore with rectangularkey.2. Maximum allowable hub bore with square key.3. American National Pipe Thread.4. Consult Logan Clutch Corporation if yourapplication requires greater torque capacityor higher speeds.A fixed orifice pressure regulated valve should be specified in the system to All rotating components present a hazardous condition and should be guardedprevent over-pressurization of any Logan Clutch. The Logan warranty does not in accordance with OSHA requirements and other applicable laws, regulationscover clutch failure due to over-pressurization. The highest pressure values in and industrial standards.the torque tables are maximum ratings for Logan Clutches.Logan Clutch Corporation reserves the right to modify product specifications and designs without notice and without incurring obligations.Torque values are based upon disc packs having full contact between surfaces.Copyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com5

D minXDrive CupYVKHInletPortHigh Torque / Small EnvelopeR Series DimensionsFeatures700Maximum Torque / Minimum EnvelopeModel350UnitFt. lbs.NmMax.Torque RPM Disengaging 518867002700255Ft. lbs. 36945025004600Nm500Ft. lbs. 60155018003800Nm815Ft. lbs. 87460035001500Nm1185Ft. lbs. 123070014003000Nm1668Ft. lbs. 171180026001300Nm2320Ft. lbs. 231190023001200Nm3134*See the chart on page 7 for incremental torque ratings.Modified standards available for specific .75248Model .63.11579.13.38285.9350450550600Disc TangNo. of Tangs F*Drive Cup Pilot BoreL900R Series Torque and Speed [email protected] 150 PSI (10.3) BARJRFast Engagement / Quick ReleaseModified Standards for SpecificDesign RequirementsACylinder800Hydraulic or Pneumatic ActuationBS*Operation: Pressurizing the cylinder withfluid or air forces the piston to clamp andlock the friction and separator discs, andrelease springs. Torque is transferredthrough the clutch to the drive cup. Whenpressure is removed, the release springsseparate the separator discs and maintain arunning clearance between separator andfriction disc surfaces.Mounting: The shaft on which the clutch hubmounts is rifled and cross-drilled to providepassage for the actuating media. A press fitor cap seals are necessary to prevent mediapressure loss due to seepage past the huband shaft interface.Lubrication: R Series clutches and brakesare designed for wet or dry operation. 52.50063.5U260 60 60 60 60 note 360 note 360 note .1012.60.1343.4Notes:Unless otherwise noted, upper 1. Maximum allowable hub 3. Two Ports 180 apart.bore with standard square 4. Three Ports 120 apart.value units are inches; lowerkey. Based upon maxivalue units are millimeters.mum allowable actuating 5. Maximum speed at whichCustomer to specify dimenrelease springs will overpressure of 200 psi. (13.8sions A, B and C. Hub borecome the centrifugal headbar). Larger bores aredimension A not to exceeddue to fluid remaining inpossibleatloweractuatmaximum allowable bore.the actuating cylinder.ing pressures.2. Inlet Port location relativeto key way.Copyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com6

Operating ParametersOperating Parameter Notes:R Series(lb-ft ) Clutch Speed (RPM) 22(lb)1Model (kg) (kgm2)3.8 0.043501.7 0.0026.9 0.134503.1 0.01130.345505.9 0.01170.556007.7 0.02241.0770010.9 0.04342.0180015.4 0.08483.5190021.8 0.15Cylinder Volume 3Actuating Flow4Max. Disengaging new disc worn 22.02600130027236116.021.023001200262344GPM 10.74.918.48.32410.93515.95123.16830.81(lb-ft2) Max. Speed(kgm 0.220.010.350.010.670.031.240.052.360.10(RPM) 5(lb-ft2)Max. nder Volume 3new disc worn 691646.011.098180Actuating Flow 4GPM 1.04216.061P Series(lb)1Cylinder Volume 3Actuating Flow 4new disc worn discGPM (LPM)(kgm2)(RPM) 020.0815004.06612.019711.042Model(kg)3501. Clutch weight: Based upon minimum hub bore.Does not include drive cup and friction discs.2. R Series: Maximum speed in the R Series atwhich release springs will overcome thecentrifugal head due to fluid remaining in theactuating cylinder. Modified springs areavailable for heavy duty applications.3. Cylinder Volume: Upper value units are cubicinches; lower value units are cubic centimeters.4. Actuating Flow: Based upon an actuating timeof 0.1 second. Upper value units are gallons perminute; lower value units are liters per minute.5. RPM: For higher operating speeds, call Logan.S Series(lb)Logan Seals / O-Rings are provided in afluorocarbon elastomer having a 70 durometer.Operating temperature range is -15 to 400degrees F (-26 to 204 degrees C).Logan OutperformsElectromagnetic Clutches! Logan has the design and manufacturing capability to replace existing and obsolete electromagnetic clutches with Logan technology.Logan vs. Electromagnetic Clutches Transmits more Torque and has higher RPMcapabilities within the same envelope Eliminates residual DC magnetism in disc packsand bearings-reduces downtime Disc Pack, Bearing Kits and Seal Kits for Loganclutches are available from stockView of a modified standard Logan S 300 Series clutch(right) which replaced an Ortlinghaus style electromagneticclutch (left). The clutch, drive cup and disc pack weremodified on the Logan S300 to fit within the existingElectromagnetic clutch envelope.Side view showing identical axial length, and 3-disc packConfiguration of the Logan S300 and Ortlinghaus style clutch.Copyright 2003, Logan Clutch Corp. All Rights Reserved. www.loganclutch.com7

Static Torque RatingsSelection ProcedureI. Calculate the torque requirement for theapplication using one of the followingformula:R Series Wet OperationPSI (Ratings in

Logan Fluid or Air actuated clutches, brakes, and clutch-brake combinations are used in a wide variety of Machine Tool, Industrial, Marine, Municipal, Mining and Off-Highway applications. Our attention to quality and service, along with the ability to modify stan-dard units to meet specific customer needs, has lead to the success and growth of