Mechanical Clutches - DMTP

1 The Emerson logo is a trademark and a service mark of Emerson Electric Co. Emerson Power Transmission Manufacturing, L. P. or affiliates 2006. All rights ClutchesThe industry's broadest line of conveyorbackstop, overrunning and Mechanical Clutches offer the most completeand versatile selection in the industry. Eleven seriesof Clutches perform three basic modes of operation: Overrunning Indexing BackstoppingThese units have set standards of performance,offering: Higher overrunning speeds Greater torque capacities Longer service lifeCam Clutches are precision devices that lock theinner and outer races through the wedging action ofcams to transmit torque in one direction of rotationwhile overrunning in the opposite direction ofrotation.

2 These units are often referred to asfreewheels, sprag, overrunning, backstop or one-wayclutches, depending upon their your equipment with Morse andBrowning Torque Overload and Morse torque overload devices aredesigned to protect machinery when an overload orjam occurs. Utilizing a torque overload device canhelp increase production, reduce downtime andprevent costly repairs. Emerson Power Transmissionoffers eight different types of torque overloaddevices available in shear pin, ball detent andfriction facing designs. These units are available withup to 1800 rpm, 21,500 ft/lbs of torque and at best,can maintain trip torque within 3% accuracy tomeet the needs of the most demanding Clutch InformationClutch Product Offering.

3 4 - 7 Modes of Operation .. 8 Principles of Operation .. 9 - 10 Design 11 Design 12 - 13 Part Number 12 - 13II. Mechanical Cam ClutchesM Series .. 14 - 27 MZEU Series .. 28 - 32 Conveyor Backstop 33 - 44KK Series .. 45 - 51 NSS Series .. 52 - 53 NFS Series .. 54 - 55B Series .. 56 - 59PB Series .. 60 - 61HT Series .. 62 - 63BR Series .. 64 - 71 III. Engineering InformationClutch Lubrication .. 72 Dimensions and Tolerances .. 73 Bore Sizes and Shaft Tolerances .. 74 Clutch Selection Procedures .. 75 Clutch Application Data Selection .. 76IV. Torque Overload DeviceTorque Overload Device Product Offering.

4 80 - 81 Torque Overload Device Design Function ..82 - 83 Browning Shear Pin Hubs and Sprockets .. 84 - 87 Morse Torque Limiters .. 88 - 94 Morse Torque Limiter Couplings .. 93 Browning Torque Limiters .. 95 - 96 Browning Torq/Pro .. 97 - 110 Browning Torq/Gard .. 111 - 116 Browning Axial Gard .. 117 - 121V. General Information .. 122VI. Standard Terms and 128 Table of Contents2 Custom DesignThe Morse line of Clutches covers a wide range of sizes and capacities, which handle the majority ofindustrial applications. However, there are applications that require special designs to meet specificapplication Power Transmission offers engineering assistance in both design and application to helpmeet these specialized selection assistance, call Application Engineering at 1-800-626-2093 or fax the completed form onpage 76 to:Emerson Power Transmission Application EngineeringFax.

5 (606) 564-20793 Morse Mechanical cam Clutches are precision devicesthat lock the inner and outer races through the wedgingaction of cams to transmit torque in one direction ofrotation while overrunning in the opposite direction ofrotation. These type units are often referred to asfreewheels, sprag, overrunning, backstop or one-wayclutches, depending upon their are available with a bore range up " and a torque range up through 500,000 lb. ft. andare the most complete and versatile cam clutchesavailable for a variety of applications from smallbusiness machines to giant steel series of Clutches perform three basicmodes of operation: Overrunning Indexing BackstoppingThese units have set standards ofperformance, offering.

6 Higher overrunning speeds Greater torque capacities Longer service lifeFor selection assistance, call Application Engineering at 1-800-626-2093 or Self-contained Clutches created for hightorque applications where reverse rotation ofa head-shaft must be prevented Manufactured with large diameter rollers toprovide bearing, clutch support, andmaintain concentricity between inner andouter races Torque arm available to help prevent reverserotations, plus an external felt seal andinternal lip seal for low maintenance Available with an external felt seal andinternal lip seal for low maintenance Retaining plate option available to securebackstop to shaftBore " "Torque ,500 - 500,000 lb Backstop Clutches (Page 33)M Series Clutch(Page 14)

7 Features Self-contained clutch designed for a widevariety of applications Cam cage assembly engineered for optimumperformance and increased capacity Two ball bearings included to support radialload and concentricity between races Close tolerance outer diameter to mountsheave, gears, sprockets and torque arms Positive contact lip or felt seals provided forgrease or oil lubrication Tapped holes machined on ends of outer racefor mounting auxiliary components Metric bore and keyway available Mounting accessories availableBore " "Torque range ..275 25,000 Full complement of cams Two bearings incorporated for concentricitycontrol Symmetric, building block components Close tolerance outer diameter to mountsheave, gears, sprockets and torque arms Tapped holes at both ends of races to mountaccessories Flange, torque arms and covers availableMZEU Series(Page 28)Bore " "Torque 44 25,000 Product Offering5KK15 - KK40 Series(Page 45)

8 Features Self-contained ball bearing and cam clutch Designed with same dimensions asstandard metric light series ball bearing Press fit option for shaft and housing Available with keyed inner and outer races Furnished filled with grease to increasewear life Seal options available for contaminatedenvironmentsBore range .. " " (15mm - 40mm)Torque range .. 190 Series(Page 52)Features Designed with the same overalldimensions of a metric 200 light seriesball bearing Created with an inner race containing akeyseat and an outer race that press fits inhousing Excellent for applications where space is aconsiderationBore " " (8mm - 50mm)Torque range.

9 480 Product OfferingValue-Added Capabilities Special bores (splined, dual keyways, extended with setscrews) Special width Custom seal designs (viton, all rubber, etc) Special greases (low-temp, food grade, etc.) Dual cages for higher capacity in a wider but small OD package Gear or sprocket tooth cut into OD of clutch Special label needs such as inclusion of OEM part numbers Ability to kit products for final assembly Assembled to sprocket, coupling, etc. Custom engineering designs for OEMsFor selection assistance, call Application Engineering at 1-800-626-2093 or Series ClutchesFeatures Rugged cam clutch designed forapplications where space and weight arefactors in clutch selection Full complement of cams held in the outerraces Input shaft used as the inner race must behardened and ground to size Interchangeable with competitors products Bearing support and lubrication required Primarily used for backstop applicationsB-200A Series(Page 56)Bore range.

10 " - "Torque range .. 39 - 575 lb Series(Page 58)Bore range .. " - "Torque range .. 60 -1,250 lb Product OfferingNFS Series(Page 54)Features Designed with the same overall dimensionsas medium 300 series metric ball bearing Manufactured with an inner race containinga key-seat and an outer race containing keyslots Furnished with protective oilBore " " (12mm - 80mm)Torque 2,900 - PB16A Series(Page 60)Features Self-contained clutch designed with a bronzebushing for bearing support Hub diameter used for mounting auxiliarycomponents such as gears, pulleys andsprocketsBore range.