Carlisle V. Belt Service Manual 2015 - Drive Engineer

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Industrial V-Belt DrivesService ManualU.S.A.Customer Service: 866-773-2926CANADACustomer Service: om The Carlstar Group LLC. All rights reserved. IND-L-1501

The Right Belt for the JobThe Right Belt for the Job1 *Gold Ribbon2 Cog-Belt (AX,BX,CX,DX)The Energy Saver! More efficient thanordinary belts. The finest classicalV-belt available.1Safety NoteGold Ribbon Cog-Band (RBX,RCX,RDX)A unique combination of our energy savingCog-Belt and the banded concept.3 *Power-Wedge Cog-Belt (3VX,5VX,8VX)Space saving V-Belt transmits higher HP andprovides longer life for maximum savings.Safety must be considered a basic factor in machinery operation at alltimes. Most accidents are the result of carelessness or negligence.Power transmission products such as those listed in this catalog arepotentially dangerous and must be guarded by the contractor, installer,purchaser, owner, and user as required by applicable laws, regulations,standards, and good safety practice.24 *Metric Power-Wedge5 Cog-Belt (SPZX, SPAX, SPBX, SPCX) Compact and efficientoperation for drives that require metric cross sections.Reduces weight and overhung load.43Power-Wedge Cog-Band (R3VX, R5VX) Power Wedge Cog-Belt in bandeddesign. Compact and efficient. Eliminateswhip and turnover on narrow drives.Failure to follow proper procedures for installation, care, maintenanceand storage of products may result in failure to perform properly andmay result in damage to property and serious bodily injury. Make surethat the product selected for any application is recommended for thatservice.56 *Super Power-Wedge78 V-Belt (5V,8V)Designed for lower cost, more compactmultiple-belt drives.6Wedge-Band (R3V, R5V, R8V)Carlisle's Power-Wedge belt in banded design.Eliminates whip and turnover on narrow drives.8 Wedge-Band Chipper Drive Belt (R5VL)Specially designed and constructed to meet the uniquedemands of the forest products industry. Ideally suited forchipper saws, debarker drives, head rigs and hogs. V-Belt (AP,BP,CP,DP)The finest wrapped belt in the industry.10 *Super II11121314It is the responsibility of the contractor, installer, purchaser, owner, anduser to install, maintain, and operate the parts or componentsmanufactured and supplied by The Carlstar Group in such a manner asto comply with all occupational safety laws, federal, state and locallaws, ordinances, regulations, etc.79 * Super Blue Ribbon9CAUTION11 V- Belt (A,B,C)The revolutionary raw-edge belt from Carlisle thatblows the cover off conventional wrapped beltswith its unique construction.1013Super Vee-Band (RBP,RCP,RDP) Carlisle’sSuper Blue Ribbon V-Belt in banded design.Eliminates belt whip and turnover on conventionaldrives.Double-Angle Belt (AA,BB,CC)Designed for use on serpentine typedrive applications.12Guards, access doors, and covers must be securely fastenedbefore operating any equipment. If parts are to be inspected,cleaned, observed, or general maintenance performed, the motordriving the part or components is to be locked out electrically insuch a manner that it cannot be started by anyone. Failure to followthese instructions may result in property damage, personal injury,or death.AIRCRAFT WARNING!14Durapower ll (Raw Edge)FHP Light Duty V-BeltLonger belt life and improved performance.Vee-Rib Belt (J) Increased horsepower intwo thirds the space required for normal belts. WARNING* available inCarlisleBelts.com constructionCarlisle belts and pulleys are not designed or intended for aircraft use.Do not use Carlisle belts on aircraft propeller, rotor or accessory drives.Do not use Carlisle belts on helicopters or private, commercial, orultralight aircraft.CarlisleBelts.com

Table of ContentsThe Carlisle V-belt Drive Service Manual has been prepared with thedouble purpose of: helping you AVOID V-belt drive problems by presenting astep-by-step replacement procedure and helping you SOLVE V-belt driveproblems by offering troubleshooting techniques.SubjectPageV-Belt Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V-Belt Drive Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Section 1– Preventive Maintenance andInstallation of V-Belt Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9V-Belt Installation Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Section 2 – Corrective Maintenance andTroubleshooting of V-Belt Drives . . . . . . . . . . . . . . . . . . . . . . . . .10-35V-Belt Drive Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . .12-13Troubleshooting Installation Problems . . . . . . . . . . . . . . . . . . . . . . . .14-21Troubleshooting Selection Problems . . . . . . . . . . . . . . . . . . . . . . . . .22-27Troubleshooting Environmental Problems . . . . . . . . . . . . . . . . . . . . .28-31Troubleshooting Design Problems . . . . . . . . . . . . . . . . . . . . . . . . . . .32-35Installation and Take-Up Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36V-Belt Tensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37-38V-Belt Deflection Force Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39Topical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 WARNING - SAFETY NOTEFailure to follow recommended application information and recommended proceduresfor installation, care, maintenance and storage of products may result in failure toperform properly and may result in damage to property and serious bodily injury. Makesure that product selected for any application is recommended for that service. ContactCarlisle or your Carlisle distributor for assistance or specific recommendations.Guidelines presented in this manual are suggestions to help install and maintain beltsproperly. Always follow the recommendations of the original equipment manufacturer.1

V-Belt ConstructionWrapped BeltRaw Edge Cog-Belt 11223443Before we talk about “Avoiding Problems” and “Solving Problems”,let’s take a brief look at how V-belts are constructed.There are basically two types of construction. One has a fabric cover surrounding it; theother–usually rated higher in horsepower–is made in a raw edge, cogged construction.Wrapped BeltRaw Edge Cog-Belt 1. Cover–Woven cotton fabricimpregnated with neoprene.1. Tension Section–Speciallywoven stress-relieved fabricstretches up to 176% more thanordinary bias-cut fabric.2. Tension Section–Synthetic rubberspecially compounded to stretchas belt bends around sheaves.3. Cords–High-strength, syntheticfiber cords carry the horsepowerload and minimize stretching.4. Compression Section–Syntheticrubber compounded to supportcords evenly and compress whilebending around sheaves.2. Cords–Synthetic Hi-Moduluscords form the strength memberto carry high loads with minimumstretching.3. Compression Section–ExclusiveStiflex rubber compounds andprecision molded cogs increaseflexibility while supporting cordsevenly.4. Raw Edge Sidewalls–Provideuniform, anti-slip surface, greaterflexibility and allows more cordwidth.2

V-Belt Drive AdvantagesV-belt drives provide many maintenance advantages that help in your daily struggleto reduce equipment repairs and to hold downtime to a minimum.1. They are rugged–they will give years of trouble-freeperformance when given minimal attention.even underadverse conditions.2. They are clean–require no lubrication.3. They are efficient–performing with an average of93-95% efficiency. Raw-edge cog belts are 95-97% efficient.4. They are smooth starting and running.5. They cover extremely wide horsepower ranges.6. They permit a wide range of driven speeds, using standardelectric motors.7. They dampen vibration between driving and driven machines.8. They are quiet.9. They act as a “safety fuse” in the powertrain.10. V-belts and sheaves wear gradually–making preventive andcorrective maintenance simple and easy.3

Section 1Preventive Maintenanceand Installation of V-Belt DrivesYou will notice Reference Key Numbers (such as A -1) appear throughout thissection. These refer to a more detailed discussion with illustrations relating to thesubject in Section 2 (Corrective Maintenance and Troubleshooting).Safety FirstBefore doing any maintenance work on power drives, be sure the controlling switchis in the OFF position, locked out and tagged. Follow your plant’s safety rules.4

Preventive Maintenanceand Installation of V-Belt DrivesRelieve Belt TensionA-1After removing the drive guard, loosen thedrive take-up and move the sheaves closertogether to facilitate the removal of all oldbelts, and to insure installation of the newbelts without damage.Inspect Drive ElementsA-1A-6This is a good time to service the take-up railsby removing any rust and dirt, and lubricating asnecessary so tensioning of the new belts willgo smoothly and easily. You now also have anexcellent opportunity to inspect and replacefaulty or damaged machine elements such asworn bearings and bent shafts.This procedure not only reduces the likelihoodof future mechanical trouble, but insuresmaximum service from the new belts you areabout to install.Sheaves should be carefully cleaned of any rustand foreign material. A wire brush followed upwith a shop cloth will usually do the job.Cleaning sheaves will reduce sheave wear.5

Section 1Preventive Maintenanceand Installation of V-Belt DrivesInspect SheavesA -4 A -9Sheave condition and alignment are vital toV-belt life and performance. New V-beltsshould never be installed without a carefuland thorough inspection of the sheavesinvolved.Particular attention should be given to theseconditions:a. Worn Groove Sidewallsb. Shiny Sheave Groove Bottomc. Wobbling Sheavesd. Damaged SheavesShiny Sheave Groove BottomWorn Groove SidewallsWobbling SheavesDamaged SheavesAlign Sheaves (Preliminary)A -3A -5Alignment should be given preliminary consideration at this time. Use a laser alignment toolor straight edge to check that:a. The shaft of the DriveR and the DriveN sheaves are parallel, horizontally and vertically.b. The DriveR and DriveN sheaves are in a straight line.c. Both sheaves are properly mounted and as near to the bearings as practical.6

Preventive Maintenanceand Installation of V-Belt DrivesSelect Replacement BeltsB -1B -4B -2B -3After you have made any necessary corrections in your V-belt drive elements, the nextstep is the selection of the right replacement belts.In replacing sets of V-belts, here are some Very Important Reminders: NEVER MIX NEW AND USED BELTS ON A DRIVE NEVER MIX BELTS FROM MORE THAN ONE MANUFACTURER ALWAYS REPLACE WITH THE RIGHT TYPE OF V-BELT ALWAYS OBSERVE V-BELT MATCHING LIMITSInstalling New BeltsA -1Place the new belts on the sheaves, and besure that the slack of each belt is on thesame side. You can do this by pressing thebelts with your hand to bring the slack onone side of the drive. Loosening the drivetake-up in advance makes this easy.RightDo not force the belts onto the sheaves byusing a pry bar or by rolling the belts ontothe sheaves.Now, move sheaves apart until the belts areseated in the grooves, and make preliminarytightening of the drive, just until the slack istaken up.Wrong7

Section 1Preventive Maintenanceand Installation of V-Belt DrivesApply Tension-7 A -8All V-belt drives must operate under proper tension to produce the wedging action of thebelt against the groove sidewall. A well-established rule of thumb is that the best tensionfor a V-belt drive is the LEAST tension at which the drive will not slip under peak load.AMost V-belt problems are due to impropertensioning. Several tools and methods areavailable to insure proper tensioning.A simple and easy option is theTension-Finder available only from Carlisle.Run the drive for about 15 minutes. Thenapply full load and check for slipping. Shouldslipping occur, further tension should be applied.Carlisle Tension-FinderAfter the drive has operated under load long enough for the belts to become seated andadjusted (approximately 24 hours), it is a good idea to make a final tension inspection.For a complete discussion on tensioning and slippage, refer to Section 2A -7, in this manual.Check Sheave Alignment (Final)A -3One of the advantages of V-belt drives is the fact that perfect alignment of sheaves is notcritical to the operation of the drive. V-belts tolerate misalignment of up to 1/16 inch per12 inches of shaft center distance. However, the closer you can come to perfectalignment, the better.Laser AlignmentA -3Use a laser alignment tool or straight edge to check alignment. The straightedge should make contact at four distinct points along the outside perimeterof both sheaves.Contact pointsMake Contact at Four PointsRefer to Section 2,procedures.ACarlisle Laser-Align is Fast and Accurate-3, for complete discussion of proper alignmentNote: Sheaves should always be mounted as close to the bearings as practical to avoidexcessive loads on bearings and shafts.You have now completed a practical procedure for replacing V-belts that should help youAVOID problems with your V-belt drives. The check list on page 9 serves to summarize thepoints discussed in this section.8

Preventive Maintenanceand Installation of V-Belt DrivesV-Belt Installation Check Listccc1. Cut off and lock out power source.2. Observe all other safety procedures.3. Follow the recommendations of the originalequipment manufacturer.c4. Remove belt guard.c5. Loosen motor mounts.c6. Shorten center distance.c7. Remove old belts.c8. Inspect belt wear patterns for possibletroubleshooting.c9. Inspect drive elements–bearings,shaft, etc.c 10. Inspect sheaves for wear and clean.c 11. Check sheave alignment. (preliminary)c 12. Select proper replacement belts.c 13. Install new belts.c 14. Tension belts.c 15. Check sheave alignment. (final)c 16. Replace guard.c 17. Start drive (look & listen).c 18. Re-tension after 24 hours.9

Section 2Corrective Maintenanceand Troubleshooting of V-Belt DrivesCorrective Maintenanceand Troubleshooting of V-Belt DrivesThe first section of this V-Belt Service Manual outlined a step-by-step procedure forthe installation of replacement V-belts to help you prevent V-belt maintenance problems.The reason behind these steps is also fundamental in the daily inspection andmaintenance of V-belt drives. Watching and listening will alert you to warning signs oftrouble, since one of the greatest advantages of V-belt drives is the fact that belts andsheaves wear gradually. You can spot potential problems in time to arrange a short,scheduled maintenance down-time instead of experiencing a longer, costly interruptionof production when unexpected trouble occurs.V-belts may be thought of as being much like electrical fuses–their unexpected failureis usually a signal that something else in the system is wrong. The pattern of wear canoften indicate conditions needing correction or improvement.10

Corrective Maintenanceand Troubleshooting of V-Belt DrivesHow to correct maintenance problems by usingCarlisle’s Quick Reference Troubleshooting GuideThe V-Belt Drive Troubleshooting Guide presented on the following pages representsknowledge acquired by Carlisle in the development and manufacture of V-belts for almost100 years.This quick-reference guide lists the most common symptoms or warning signs ofdrive problems and then indicates possible causes.Each possible cause is further referenced by a key number (such as A -1) whichindicates where you may find the cure in a more detailed discussion of the subject inthis section of the manual.These discussions are grouped into four major sections:ATroubleshooting INSTALLATION ProblemsBTroubleshooting SELECTION ProblemsCTroubleshooting ENVIRONMENTAL ProblemsDTroubleshooting DRIVE DESIGN ProblemsPractical, non-technical troubleshooting tips are included to help quicklyidentify and correct suspected problems.11

Rapid Sidewall WearWorn Cover On Back Belt Turns Over Or Jumps Off Sheave A-5Sheaves Too Far From BearingA-4A-3A-2Worn Or Damaged SheavesSYMPTOMSSheaves MisalignedCAUSESBelts Rubbing GuardCURESBelts Pried On Or Misplaced SlackA-1Section 2Corrective Maintenanceand Troubleshooting of V-Belt Drives Belt Soft, SwollenBelt Slips, Squeals (Spin Burn) Belt Cover Split Underside Cracked Tie-Band Damaged Snub BreakBelts Ride Too High Belts BottomingRepeated Take-up NecessaryBelts Vibrate Excessively Or Appear Mismatched12 Bearings Are Hot Shafts Whip Or Bend Cracked Bushings Sheave Wobble Indicates most common causes Indicates other possible causes

C-1C-4C-5C-6Improper Or Prolonged StorageExcessive HeatExcessive Oil Or GreaseUse of Belt DressingAbrasive EnvironmentForeign Objects In Grooves D-2D-3D-4Drive Seriously OverbeltedSheaves Too SmallInsufficient Wrap On Small Sheave HarmonicsD-6D-5D-1Overloaded Drive/UnderbeltingBackside IdlerC-7Excessive MoistureC-3C-2B-4Machine-Induced Impulse Or ShockB-1Belts Worn (Normal Service Life)B-3A-9Improper Sheave InstallationMismatched Belts Or Mixed BrandsA-8Excessive TensionB-2A-7A-6Insufficient TensionPoor Bearing Or Shaft ConditionWrong Belt Cross-Section Or Type 13

Section 2Troubleshooting Installation ProblemsTroubleshooting InstallationProblemsAs pointed out in Section 1 of this manual, preventive maintenance by using properinstallation techniques is important for long, trouble-free V-belt service.Occasionally, however, you will find it necessary to correct problems caused by improperinstallation. This section deals with these problems and troubleshooting procedures.14

Troubleshooting Installation ProblemsA -1 Prying or forcing V-belts onto the sheaves can, and usually does, break some ofthe load-carrying tensile cords (see photo on page 7, Section 1). When this happens, thebelt may either break or turn over in the groove, usually within the first few minutes ofoperation. This method of installation may be evidenced by a rupture or split in thewrapped cover of the belt, caused by the prying tool or sheave edge. Broken cords areeasily identifiable onraw-edge V-belts, because itis usually the edge cords thatbreak first.Misplaced Slackcan also cause belt breakage,again usually on startup. Thisoccurs on multiple-belt driveswhen all of the belt slack isnot brought to the same sideof the drive before tensioning.Ruptured CoverIf some belts are tight on oneside, and others are tight onthe other side, the heavy shock load of starting will be borne by only some of the belts,thus weakening or breaking the load-carrying cords.A -2 Belts rubbing against the metal guard or other obstruction will be evidencedby cut or worn fabric on the back or upper edge of the V-belt. Often just replacingmissing bolts in guard brackets will remedy this situation.Fabric Worn onBackside15

Section 2 ATroubleshooting Installation ProblemsA -3 Misaligned sheaves can cause rapidwear of the V-belt sidewalls, considerablyshortening service life of both belts andsheaves. Misalignment can also causeseparation of the tie-band on banded belts,or apparent mismatching of individual belts.V-belt sheave alignment should be within atolerance of 1/16” per 12” of drive centerdistance.The three basic types of sheave and shaftmisalignment are shown below, with suggestedmethods for checking and correcting eachtype. Note that all 3 types may exist at thesame time. Alignment should be checked andcorrected in the order given.HorizontalAngular16VerticalAngularSidewall WearParallel

Troubleshooting Installation Problems1. Horizontal Angular (shafts in same horizontal plane but not parallel)To Check: Use laser alignment tool or straightedge near sheave centers.To Correct: Loosen motor mounting bolts and rotate motor until all 4 pointstouch straightedge.2. Vertical Angular (shafts in same vertical plane but not parallel)To Check: To Check: Use laser alignment tool or place straightedge about 1and 1/4 radius from the outside diameter of both sheaves. Repeat on opposite sideof shaft 2. The straightedge should touch at all 4 points shown below.To Correct: Use shims under motor base in front or rear of motor, depending ontype of correction required.3. Parallel (shafts are parallel; sheaves not in line)To Check: Use laser alignment tool or straightedge near sheave centers.To Correct: Loosen sheave so it slides easily on shaft until all 4 pointstouch straightedge. Retighten sheave in position. Important: Sheaveshould be mounted as close to bearing as possible to reduce overhungload on bearing. Re-locate equipment if necessary.17

Section 2 ATroubleshooting Installation ProblemsA -4 Worn or damaged sheaves are an even greater cause of rapid belt wear, slippageand vibration. Badly worn sheaves can cause over-tensioning of the drive to preventslippage, indirectly causing over-heated bearings and shaft damage. If pieces of thesheave flange are missing, it will result in badly worn sidewalls of the belt, and theresulting sheave imbalance can damage bearings and create a safety hazard. When onlysome of the grooves are worn more than others, the effect is that the belts appear to bemis-matched. It also causes “differential driving,” where only some of the belts arecarrying the entire load of the drive.In the case of banded belts, worn grooves cause the belts to ride too low in the grooves,thus causing the tie-band to wear against the sheave flanges between the grooves. Insevere cases, this can have the same effect as a circular blade, cutting the band andseparating the belts.Sheave templates are available from your Carlisle distributor, which can be used to checkgrooves accurately for wear. A flashlight held behind the template when placed in thegroove will help you to observe the amount of wear. “Dishing” should not exceed 1/32” forindividual V-belts, or 1/64” for banded V-belts. A shiny groove bottom is a sign that the beltor sheave, or both are badly worn and the belt is bottoming in the groove. Worn sheaves orshiny sheave groove bottoms will show up first on the smaller sheave.The cost of replacing a worn sheave will be more than recovered in longer V-belt life,reduced maintenance and downtime.18Worn SidewallsCut Tie-BandProper Position of Belt inSheaveBottoming and Dishing ofBelt in Sheave

Troubleshooting Installation ProblemsA -5 Sheaves mounted too far from the bearing cause excessive overhung load on thebearing and overheating. This can also cause shafting to whip, bend or break. Sheavesshould be mounted as close as possible to the bearing. If this affects alignment severely, itmay be necessary to re-locate the equipment to stay within alignment limits of 1/16” per12” of shaft center-to-center distance.A -6 Bearing condition and normal wear may well be the cause of overheating, rather thanbelt tension. They should be inspected for proper lubrication and wear according to thespecifications of the bearing or equipment manufacturer. Shaft condition should also bechecked and replaced if necessary. Bent shafts can be detrimental to bearings, belts andsheaves, as well as being a safety hazard due to the imbalance created. Sheave“wobble” may be caused by bent shafts.-7 Insufficient belt tension vies closely with worn sheave grooves as the leadingcause of V-belt slippage and other problems. This is often evidenced by “spin burn”. Theeasiest and most practical way for maintenance personnel to judge proper belt tension isby the “SST” method–Sight, Sound and Touch.ASpin Burn19

Section 2 ATroubleshooting Installation ProblemsSight–While the drive is operating, look fora slight “bow” or “sag” in the slack side ofthe belts. This is normal, and should appearmore noticeable under heavy load, such asat startup or during load cycles. Check thesheave grooves for wear.Sound–Properly designed V-belt drivesshould not squeal or howl under peak loadconditions, such as on startup of acentrifugal fan. If necessary, stop thedrive, then start it again. If a squeal isheard, the belts should be tightened just tothe point where they do not squeal underpeak load.Newly installed belts require about 24hours to become fully seated in thegrooves. Recheck tension the next day.Touch–V-belts don’t always squeal whenthey are slipping. If slippage is suspected,a sure way of determining it is by stoppingthe drive (lock it out!) and placing yourbare finger against the inside of a sheavegroove. If slippage is present, it will generate enough heat so that you can’t keepyou finger on the groove. If this is true,and there is no outside heat source, thenthe drive is probably slipping.Assuming no sheave wear, the driveshould be tightened. If the sheave is worn,replace the sheave and tension normally.Use the various tensioning tools that areavailable from Carlisle to assure propertensioning.20

Troubleshooting Installation ProblemsA -8 Excessive tension on V-belts can be even more detrimental than too little tension,affecting not only the belts, but also bearings and shafts. Again, the best rule is to applyonly enough tension on the belts to keep them from slipping during startup or peak loading. Some indicators of excessive tensioning (but not always) are: Repeated belt breakage Excessive vibration Belt underside is cracked Overheated bearings Whipping or bent shafts-9 Improper sheave and bushinginstallation can result in sheave“wobble” as well as causing bushingsor sheave hubs to crack. When installingsplit-tapered bushings such as QD orTaper-Lock types, always followmanufacturer’s instructions.AIt is important to never lubricate thetapered surfaces before installing. Thelubrication will permit recommendedtorque wrench values to increase theactual force on the bushing and hub.This usually results in cracking of thebushings at the bolt hole or keyway.Cracked BushingOn flanged bushing types, the flange should never be brought up flush with the sheave hubface. A small gap between the two surfaces is normal. When removing split-taperedbushings, start at the jack-screw hole opposite the split, to avoid cracking the bushing.Recommended Wrench Torque Values To Use In Tightening QD BushingsBushing SizeQTJASH-SDS-SDSKSFEFJMNPWSCap ScrewSize & ThreadFoot PoundsTorque WrenchNormal Applications*1/4-1No. 0* For severe (rock-crusher type applications) these values can be increased by a maximum of50%. On severe applications the bolt torque should be rechecked at periodic intervals duringoperation.21

Section 2 BTroubleshooting Selection ProblemsSelecting the Right Belt - The array of V-belt types, cross-sections and lengths on themarket today are all part of technological efforts to provide more efficient, cost-savinganswers to your drive requirements.This category is intended to point out how you can be sure of applying the best CarlisleV-belt type to your applications.22

Troubleshooting Selection Problems-1 Worn V-belts may have gotten that way simply because they have delivered theservice life built into them. Carlisle, like other manufacturers, strives to build V-belts with a“balanced” construction, so each element of the belt will last as long as all other elements.But the wide variety of industrial applications, environmental conditions and maintenancepractices makes this impossible to achieve. However, the expected life of an industrial V-belton a properly designed drive is 3 years, or 25,000 hours.BB -2 Using the wrong type of belt or cross-section can create problems for you.andit’s not hard to do, since many have similar dimensions. For example, the following CarlisleV-belts have approximately the same top width (5/8”) and length (85” O.C.).And yet, the horsepower ratings of these belts range from as little as 2.2 HP per belt to asmuch as 11.9 HP per belt on a 5” diameter sheave and 1750 RPM motor!5/8"5L11/32"5L850R Durapower Durapower! llll5L850RLight Duty FHPV-B elt21/32"BP7/16"BP82Ribbon V -BeltBP82 SuperSuperBlueBlueRibbon!V-Belt7/16"BX82BX82 GoldGoldRibbon Ribbon!Cog-Belt Cog-Belt!21/32"BX5/8"5VX5VX850 Power-Wedge Power-Wedge! Cog-Belt!Cog-Belt 17/32" 5VX85023

Section 2 BTroubleshooting Selection ProblemsA V-belt survey of your drives by a Carlisle Certified Drive Specialist can assure you ofusing the correct V-belt. This service may be obtained by contacting your CarlisleAuthorized Stocking Distributor. He maintains a full and convenient inventory ofreplacement belts and sheaves, and stands ready to assist you in selecting the propersize and type for each application.Carlisle's Industrial Power Transmission catalog lists all types and sizes ofstock industrial belts and sheaves. The following suggestions will help inselecting the proper belt.DO match the correct belt cross-section to the sheave groove. (A-A, B-B,5V-5V, etc.)DON’T use “B” section belts in “5V” grooves, or vice-versa. Check the sheave numberstamped on the rim if in doubt.DON’T replace “A” or “B” heavy duty V-belts with “4L” or “5L” light duty (FHP) V-belts. FHPbelts are built for Fractional Horsepower applications, and usually run singly. Most multipledrives require heavy duty belts.DO use V-belts marked “Oil and Heat Resistant” where oil or heat is present. The CarlisleGold Ribbon Cog-Belt and Power-Wedge Cog-Belt offermaximum heat and oil resistance–see key numbers C -2 and C -3DO insist on a belt labeled “Static-dissipating” on drives operating inhazardous atmospheres.DO use banded V-belts where vibration or shock loads can cause belts to turn over orjump out of the sheave grooves.DO use matched sets from the same manufacturer (see key numberB-3)DON’T mix old and new belts on a drive. They cannot be matched.-3 Mismatched belts or mixed brands from different manufacturers cannot be matchedB together, and will not deliver the service life they should.Although all manufacturers

Carlisle belts and pulleys are not designed or intended for aircraft use. Do not use Carlisle belts on aircraft propeller, rotor or accessory drives. Do not use Carlisle belts on helicopters or private, commercial, or ultralight aircraft. 1 2 4 14 * available in construction Gold Ribbon Cog-Belt (AX,BX,CX,DX) The Energy Saver! More .

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This catalog is intended as a guide to the Carlisle line of power transmission p ro d u cts fo r in d u stria l b e lt d rive s. Carlisle maintains one of the largest . each Carlisle belt shown has a metric part number also shown, based on an in d u stry sta n d a rd syste m . W ith th e exception of the RPP belts, this num- .

To place an order please use the Conveyor Request Form (page 37) or visit the online Belt Conveyor Confi guration Tool at www.robotunits.com Description Frame Width F max. 3) Belt Conveyor 40 40 mm 300 N Belt Conveyor 40 80 mm 700 N Belt Conveyor 40 120 mm 1100 N Belt Conveyor 40 160 mm 1500 N Belt Conveyor 40 200 mm 1900 N Belt Conveyor 40 .

Carlisle SynTec, a division of Carlisle Construction Materials Inc. 1285 Ritner Highway Carlisle, PA 17013 SCOPE: This NOA is being issued under the applicable rules and regulations governing the use of construction materials. The documentation submitted has been reviewed and accepted by Miami-Dade County RER - Product Control Section to be

N. Sharma, M. P. Rai* Amity Institute of Biotechnology (J-3 block), Amity University Uttar Pradesh, Sector-125, Noida, India A B S T R A C T P A P E R I N F O Media requirement for microalgae cultivation adds most to the cost of biodiesel production at Paper history: Received 30 July 2015 Accepted in revised form 6 September 2015 Keywords: - Chlorella pyrenoidosa Cattle waste Lipid content .