JIS Universal Joints - Lovejoy, Inc

Table of ContentsJWJWTable of ContentsJISJISCJCJSFSFG HD TypeMC D TypeGIn This Section:MCUniversalJointsHP NB (Needle Bearing) TypeHP D Type Stainless LOJ TypeGDGD DD and DDX Type Universal Joint .com329UJUJ-1

Table of ContentsJISJISJWJWUniversal JointsSFSFMCMCGGHPCJCJTable of ContentsHPSafety WarningWhen using Lovejoy products, you must follow these instructions and take the following precautions. Failureto do so may cause the power transmission product to break and parts to be thrown with sufficient force tocause severe injury or death.GDGDDDTTSPSPRefer to this Lovejoy Catalog for proper selection, sizing, horsepower, torque range, and speed rangeof power transmission products, including elastomeric elements for couplings. Follow the installationinstructions included with the product, and in the individual product catalogs for proper installation of powertransmission products. Do not exceed catalog ratings.During start up and operation of power transmission product, avoid sudden shock loads. Coupling assemblyshould operate quietly and smoothly. If coupling assembly vibrates or makes beating sound, shut downimmediately, and recheck alignment. Shortly after initial operation and periodically thereafter, whereapplicable, inspect coupling assembly for: alignment, wear of elastomeric element, bolt torques, and flexingelements for signs of fatigue. Do not operate coupling assembly if alignment is improper, or where applicable,if elastomeric element is damaged, or worn to less than 75% of its original thickness.UJUJDo not use any of these power transmission products for elevators, man lifts, or other devices that carrypeople. If the power transmission product fails, the lift device could fall resulting in severe injury or death.VSDVSDRRFor all power transmission products, you must install suitable guards in accordance with OSHA andAmerican Society of Mechanical Engineers Standards. Do not start power transmission product beforesuitable guards are in place. Failure to properly guard these products may result in severe injury or deathfrom personnel contacting moving parts or from parts being thrown from assembly in the event the powertransmission product fails.If you have any questions, contact the Lovejoy Engineering Department at 1-630-852-0500.SLDSLDEDEDUJ-2330630-852-0500

JWJWJISJISCJCJUniversal JointsSFSFMCMCGGTable of ContentsHPGDGDDTSPSPTOverview.332. UJ-4Pin & Block Selection Process.333. UJ-5Application Service Factors Selection Data.334. UJ-6D, HD and NB Type Running Curves Selection Data.335. UJ-7D and HD Type Dimensional Data.336. UJ-8D 303 Stainless and NB Type Dimensional Data.337. UJ-9DD and DDX Type Dimensional Data.338. UJ-10LOJ and JR-4 Types / Boots Dimensional Data.339. UJ-11HPSectionPage No.DRunningPage 3

Universal JointsTable of ContentsLovejoy has been manufacturing industrial universal joints for over 45 years. Our industrial universal jointproduct line is well established and provides you with a wide range of standard and specialized products.The shape of the yoke is a special feature which results in exceptionally high strength, yet allows full, freemovement of the joint. This accounts for the high horsepower capacity at high speeds.JISJISLovejoy Pin & Block and Needle Bearing Industrial Universal JointsJWJWOverviewD Type Industry standardCJCJFeatures Stainless steel and needle bearing available Pin & Block designSFSF 13 sizes Boot retaining grooves standardD TypeMCMCHD Type Ideal for applications up to 25 of angular misalignment and speeds up to 1,750 RPMGG Standard pin and block design The HD Type universal joint has induction hardened yoke ears provide longer life than standard D TypeHPHPHD TypeD Stainless D Type universal joint is made from 303 stainless materialGDGDD303 Stainless Ideal for corrosive atmosphere or where sanitation requirements are a factorDDNB (Needle bearing) Type Designed with high quality, pre-lubricated, and sealed needle bearingsNeedle Bearing TypeTT Ideal for applications up to 25 of angular misalignment and speeds up to 6,000 RPMLOJ and JR-4 Capable for operating angles up to 45 of angular misalignmentSPSP Offset pin design ideal for use on hand operated, low torque drivesLOJ Type DD and DDX Type universal joints are tailored to your specific application requirementsUniversal Joint BootsVSDVSD Designed with two Lovejoy D Type universal joints and a center connecting shaftUJUJDD and DDX Types The life of a universal joint can be extended substantially if booted Wear areas of the universal joint are protected from dirt and contaminants, while lubrication is retainedRRSLDSLDWARNINGYou must refer to page UJ-2 (Page 330) for Important Safety Instructionsand Precautions for the selection and use of these products. Failure to followthe instructions and precautions can result in severe injury or death.EDEDDD and DDX TypeUJ-4Universal Joint Boot332630-852-0500

Universal JointsTable of ContentsPin & BlockSelection ProcessA universal joint is needed to transmit a torque load of 180 in-lbsoperating at 1,750 RPM. The working angle required is 5 , and theservice factor is 2.Step 1: RPM x Working Angle 1,750 x 5 8,750Steps In Selecting A Universal JointStep 3: Service Factor x Torque 2.0 x 180 360KW x 9550RPMSFGNominal torque Nm GDDSizeinmmRPMin-lbsNmD-1 to D-1425 2.00501.38351,75065,4007 389HD-TypeD-1 to D-1425 2.00501.38351,75065,4007 389D4, 6, 8, 10, 1225 1.19301.00251,75010,4001 175D6, 8, 10, 1225 1.19301.00256,00010,5001 186LOJ6, 8, 1045 See Data—See Data——3,480393JR-445 See Data—See Data——18020Multi-spindleD-1 to D-1425 2.00501.38351,75065,4007 389EDwww.lovejoy-inc.com333UJ-5EDNotes: n * indicates: This is not a recommended operating torque.n 3 indicates: Square and hex bores are measured across the flats.nO peration of all universal joints is determined by the angle/speed combinations of the application. Consult Lovejoy Engineering for specific limitationsand recommendations.n Applications that fall outside the limitations of these tables should be referred Lovejoy Engineering for assistance.SLDLOJLOJ JR-4RD StainlessNeedle BearingVSDTypeD-TypeUJStatic Breaking*TorqueVSDMaxRMax Square/Hex Hole3SLDMax BoreNo KeywayRoundinmmUJMaxAngleOffsetSPSPTTUniversal Joint Specification ChartUniversalJointDn Lubrication is required for optimal wear – boots and lubricantextend universal joint life.UniversalJointGDStep 4: R efer to the Running Curves on page UJ-7 that apply to thedesired universal joint. For DD and DDX universal joints, usethe curve that matches the universal joint being used. Therequired universal joint size can be determined by establishingthe point of intersection of the RPM x Working Angle figureon the horizontal scale and the service factor torque of on thevertical scale. Size is stated against the curve immediatelyabove this point.HPHPStep 3: M ultiply the calculated torque by the desired Application ServiceFactor from Chart 1 on page UJ-6.Note:GHP x 63025RPMMCStep 2: D etermine the nominal torque of your application by using thefollowing formulas:MCStep 4: Find the point of the intersection of 360 in-lbs on the torquescale (vertical) and 8,750 on the RPM x Working Angle scale(horizontal), and the curve immediately above that point willindicate the correct universal joint size. The proper universaljoint size is D-13 or HD-13 for longer life.SFStep 1: Multiply revolutions per minute (RPM) by working angle.in-lbs CJStep 2: Nominal Torque 180 in-lbsDetermine the correct universal joint size by working out the followingcalculations:JIS Running Curves (page UJ-7)CJ Chart 1 – Application Service Factors (page UJ-6)JWList of Charts provided for Selection:JISSelection ExampleJWPin & Block Type Selection Process

Universal JointsTable of ContentsApplication Service CJSLDSLDAgitatorsPure Liquids .1.25Liquids Variable.1.25Barge Puller.2.00Beaters .1.50BlowersCentrifugal.1.25Lobe.1.50Vane.1.50Can Filling Machinery.1.25Car Dumpers.2.50Car ciprocating.not recommendedConveyors, Uniformly loaded or fedAssembly.1.25Belt .1.25Screw.1.25Bucket.1.25Live roll, shaker, and reciprocating .3.00Conveyors (Heavy Duty), Not uniformly fedAssembly.1.20Belt .00Cranes & Hoists1Main Hoists.2.00Reversing.2.00Skip .2.00Trolley Drive.2.00Bridge Drive.2.00Slope.2.00CrushersOre .3.00Stone.3.00DredgesCable Reels.2.00Conveyors.1.50Cutter Head Drives.2.50Maneuvering Winches.1.50Pumps.1.50EvaporatorsConsult Factory.1.25FansCentrifugal.1.25Cooling Towers.2.00Forced Draft.1.50JISChart 1Induced Draft w/o Damper Control .2.00Propellor.1.50Induced Draft w/Damper Control.1.25FeedersBelt .1.25Screw.1.25Reciprocating.2.50GeneratorsNot Welding . .1.25Welding.2.00Hoist.1.50Hammer Mills.2.00Kilns .1.50Laundry WashersReversing.2.00Line ShaftingAny Processing Mach.1.50Lumber MachineryBarkers.2.00Edger Feed .2.00Live Rolls.2.00Planer.2.00Slab Conveyor.2.00Machine ToolsBending Roll.2.00Plate Planer .2.00Punch Press Gear Driven.2.00Tapping Machinery .2.00OtherMain Drive.1.50Aux. Drives.1.25Metal Forming MachinesDraw Bench Carriage.2.00Draw Bench Main Drive.2.00Extruder .2.00Forming Machinery.2.00Slitters.1.50Table ConveyorsNon-reversing.2.50Reversing .2.50Wire Drawing.2.00Wire Winding .1.50Coilers.1.50Mills, Rotary TypeBall .2.00Cement Kilns .2.00Dryers, 2.00Tumbling.1.50MixersConcrete, Continous.1.75Muller.1.50Paper MillsAgitators (Mixers).1.25Barker, Mechanical.2.00“Barking” Drum Spur Gear.2.50Beater & Pulper.2.00Calenders.1.50Converting Jordans.2.00Log Haul.2.00Reel. 1.25Super Calenders.1.50Winder.1.25Printing Presses.1.50Pug Mill. 1.75PumpsCentrifugal .1.25Gear, Rotary, or Vane.1.25Reciprocating1 cyl. single or double acting. 2.002 cyl. single acting. 2.002 cyl. double acting. 1.753 or more cyl. 1.50Rubber MachineryMixer. 2.50Rubber Calender. 2.00ScreensAir Washing.1.25Rotary Stone or Gravel.1.50Vibrating.2.50Water .1.25Grizzly.2.00Shredders.1.50Steering Gear.not recommendedStokers . 1.25Textile MachineryDryers.1.25Dyeing Mach.1.25Tumbling Barrel.1.75Windlass.2.00Woodworking Machinery.1.50Notes: n 1 indicates: If people are transported, Lovejoy does not recommend and will not warranty the use of the coupling.n The values contained in the table should be used as a general guide.nF or above average shock loads or start/stop conditions of not more than once per hour, add .5 to the table value.nU niversal joints are not recommended for internal combustion engine applications.nF or severe shock loads or reversing loads, or start/stop conditions of more than once per hour, add 1 to the table value.EDEDApplication Service FactorsJWJWSelection DataUJ-6334630-852-0500

Universal JointsTable of ContentsD, HD and NB Type Running CurvesSelection DataJWJWRunning CurvesJISJISD and HD TypeCJCJMCMCWorking Torque in-lbsSFSFHPHPGGRPM x AngleGDGDDDNB TypeSPSPTTVSDVSDWorking Torque in-lbsUJUJRRSLDSLDwww.lovejoy-inc.comEDEDRPM x Angle335UJ-7