“M” Series Sprag Clutches - Cross & Morse

1 Cross +MORSEP ower Transmission SolutionsNEXTBACKINDEXF reewheel Clutches :CD ContentsCatalogue Selection INDEXTel +44 121 360 0155 Fax +44 121 325 1079 Email M Series Sprag Clutches M Series Sprag Clutches use precision cams made of high chrome alloy steel, hardenedand honed for accurate shape. A unique finishing process ensures smooth cam surfaceproviding uniform contact with both races for even load distribution and prolongedclutch life. High capacity bearings are used to accommodate radial and axial Clutches are designed to mount directly on through shafts; the torque beingtransmitted by a matching key provided with each stock bore; the outer race has aprecision ground diameter with tapped holes on each face to enable the fitting ofgears, sprockets, pulleys, sealed, bearing supported, high torqueSprag Clutch Assemblies with Metric and Imperial UNF LubricationHolesFour types of clutch are offered:MG Series -Standard clutch for general overrunning, backstop and index applications, standard oil lubricated with option of Series -Has special Sprag assembly designed for high speed oil filled for optimum Series -Fitted with labyrinth seals for minimal drag onhigher speed overrun and backstop grease Series -Utilises a special Sprag cage arrangement to allowhigh speed overrunning of the outer race.

2 Oil lubricated clutch suitable as a higher torquealternative to Roller Ramp Shafts - Clutches suitable for vertical shafting can besupplied - contact Cross & Morse sales office fortechnical Speed/Temperature Operation - Clutches can be providedwith a patented venting system for applicationssubject to high temperature variation oroverrunning at high (2)Thread Usable ApproxModelCapacityOverrunTappedSizeThre ad 3002900800MI 300 , 3/43/16x3/1615mm 41 3008002900MG 4002700800MI 400 18mm , 7/83/16x3/1620mm 45 4008002700MG 5002400750MI 500 25mm , 11/41/4x1/430mm 45 5007502400MG 600180070038mm 10x8MI 600 11/2, 13/43/8x3/840mm 1/2x7/1645mm 65 600700210050mm 14x9MG 700120040060mm 18x11MI 700 65mm 83 700400175075mm 20x1280mm 22x 927/16,21/2, 23/4 5/8x5/870mm 20x12MG 7501800600215/16, 33/4x3/475mm 750 37/163/4x9/1685mm 22x143, 31/43/4x3/4 85mm 22x14MG 800130047537/16, 31/2, 33/4 7/8x7/890mm , 4 1x1100mm 800 41/41x7/8110mm 28x1647/161x3/44, 41/4, 47/161x1MG 900120040041/2, 43/41x1100mm , 51x7/8120mm 900 51/4.

3 57/161x3/4130mm 32x18MG 10001200325 5, 51/4, 57/16, 51/211/4x11/4130mm , 515/16, 611/4x11/16150mm 1000 61/4, 67/1611/4x1160mm 40x22 Max OverrunSpeed RPMI nner(4)OuterABCDEFStd. Bore & Key Sizes (1)ImperialBore ins (3)Bore ins (3)KeyKeyMetricDimensions in mm(1) Std. bores Clutches normally available 24 hour despatch. Other bore sizes can be supplied to order. Clutches shipped with key.(2) Mounting holes equally spaced except 700& 750 which have 6 equi-spaced plus two 30 from equi-spaced holes 180 apart.(3) Bores to H7 tolerance except Imperial bores on MG 750-1000 which are to M7 tolerance.(4) This also maximum drive speed MR Series :All oil filled Clutches must be lubricated prior to , 21/41/2x1/221/2, 23/45/8x5/83, 31/45/8x7/16 Cross +MORSEP ower Transmission SolutionsNEXTBACKINDEXF reewheel Clutches :CD ContentsCatalogue Selection INDEXTel +44 121 360 0155 Fax +44 121 325 1079 Email MSeries Clutch Couplingsand Stub Shaft Adaptors 6 CouplingClutchTorqueCouplingClutch* 3002900800C3MO 3008002900MG 4002700800C4MO 4008002700MG 5002400750C5MO 5007502400MG 6001800700C6MO 6007002100MG 7001200400C7MO in mmMax Overrun SpeedClutchrpmCouplingrpmMG 750MR 750MG 800MR 800MG 900MR 900MG 1000MR 1000180052560026004752100400185032516001 30047512004001200325+ 0+ 0+ 0+ 0+ 0+ + + + *Refer to clutch tables for standard bore sizes.

4 Coupling halves can be supplied to any recognised std bore up to max. Shaft AdaptorThe Morse flanged sub- shaft adaptor is used when itis impractical to mount a sprocket, gear, sheave orother mechanical device directly to the mountingholes of the Morse cam clutch Models stub shaft diameter is designed to take fulladvantage of the clutch-torque capacity, but may beturned to smaller diameter to special order, includingmetric shaft .7501/4x1 .7501/4x1 Flexible CouplingsThe M Series Clutch Couplings are for shaft to shaftconnection on high speed overrunning applications, such asmotor to large fan C3 to C7 use Morse silent chain flexiblecouplings. Couplings to C10 are Morse Gear couplings are fully sealed for grease is preferred to overrun on clutch shaft, as this permitsremoval of driving machinery by disconnection atflexible coupling, without driven equipment being clutch shaft overrunning select coupling with MG orMO clutch.

5 If shaft diameters dictate that coupling willoverrun select MR Couplings accommodate up to 1/2degreeangular, and parallel misalignment plusend float as indicated in table. Specify direction of rotation of couplings as viewed from clutch endLeft hand is inner race drivingCCW Right Hand is inner race driving CW