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OPTIBELTINA CLN .D PUBU LSH LEYES STECHNICAL MANUALV-BELT DRIVES

TECHNICAL MANUALV-BELT DRIVESThis technical manual contains all important technical information and methods for the design and calculationof drives with Optibelt V-belts and V-grooved pulleys for industrial applications.Our Application Technology experts offeryou free support service regarding theapplication of our products and also helpsolve your drive problems.Especially regarding large volumesyou should make use of this service.We offer you the optimum solution usingstate-of-the-art programmes, the CAP drivecalculation software. OPTIBELT GMBH, GERMANY1

Optibelt EUROPEOptibelt AFRICAOptibelt AMERICAOptibelt’s partners canbe found in most countriesthroughout the world2 OPTIBELT GMBH, GERMANYOptibelt GmbHOptibelt Nederland B.V.Optibelt GmbH(Filiaal Belgie)Optibelt Österreich GmbHOptibelt Polska Sp. z o.o.Optibelt Hungary Kft.Optibelt (Canada) Inc.Optibelt de MéxicoS DERL DECV R. F. C.Optibelt do Brasil Ltda.Optibelt Asia PacificIndonesiaOptibelt Asia Pacific(Singapore) Pte. Ltd.OptibeltPower Transmission(Shanghai) Co., Ltd.

Optibelt ASIAOptibelt AUSTRALIAOptibelt AG (Schweiz)Optibelt (UK) Ltd.Optibelt France SASOptibelt Italia SRLOptibelt España, S.A.Optibelt Güç AktarmaEkipmanları San. ve Tic.Ltd. Şti.LLC „OptibeltPower Transmission”Optibelt Finland OyOptibelt Skandinaviska ABOptibelt CorporationOptibelt Colombia S. A. S.OptibeltPower TransmissionIndia Pvt. Ltd.OptibeltAustralia Pty Ltd.Optibelt New ZealandOptibelt Asia PacificPhilippinesOptibeltPower Transmission(Thailand) Co., Ltd.Optibelt GmbH,organizacní složkaOptibelt Maroc SARL-AU OPTIBELT GMBH, GERMANY3

TABLE OF CONTENTSPRODUCT DESCRIPTIONDRIVE BELTSoptibelt RED POWER 3 High Performance Wedge Belts . 6optibelt BLUE POWER High Performance Wedge Belts . 7optibelt SK High Performance Wedge Belts . 8-9optibelt VB Classic V-Belts . 10optibelt KB Kraftbands . 11-14optibelt SUPER X-POWER M S – Raw Edge, Cogged . 15-16optibelt SUPER XE-POWER PRO M S – Raw Edge, Cogged . 17-18optibelt SUPER TX M S V-Belts – Raw Edge, Cogged . 19optibelt VARIO POWER Variable Speed Belts –Raw Edge, Cogged/Double-Sided . 20optibelt DK Double-Sided V-Belts . 21Standard Properties . 22Special Constructions. 23STANDARD RANGEDRIVE BELTSoptibelt RED POWER 3 High Performance Wedge Belts,Profiles SPZ, SPA, SPB, SPC, 3V/9N, 5V/15N, 8V/25N . 24-25optibelt BLUE POWER High Performance Wedge Belts.Profiles SPB, SPC, 8V/25N . 26optibelt SK High Performance Wedge Belts.Profiles SPZ, SPA, SPB, SPC, 3V/9N, 5V/15N, 8V/25N . 27-28optibelt VB Classic V-Belts,Profiles 5, Y/6, 8, Z/10, A/13, B/17, 20, C/22, 25, D/32, E/40 . 29-33optibelt RED POWER 3 Kraftbands,Profiles SPB, SPC, 3V/9J, 5V/15J, 8V/25J . 34-35optibelt BLUE POWER Kraftbands,Profiles SPB, SPC, 5V/15J, 8V/25J . 36-37optibelt KB Kraftbands, Profiles SPZ, SPA, SPB, SPC, 3V/9J, 5V/15J, 8V/25Joptibelt KB Kraftbands, Profiles A/HA, B/HB, C/HC, D/HD . 38-40optibelt SUPER XE-POWER PRO M S Wedge Belts,Profiles XPZ, XPA, XPB, XPC, 3VX/9NX, 5VX/15NX . 41optibelt SUPER TX M S V-Belts,Profiles ZX/X10, AX/X13, BX/X17, CX/X22 . 42optibelt VARIO POWER Variable Speed Belts . 43-44optibelt DK Double-Sided V-Belts,Profiles AA/HAA, BB/HBB, CC/HCC, DD/HDD, 22 x 22, 25 x 22 . 45PRODUCT DESCRIPTIONMETALOVERVIEW – GEOMETRYDATAoptibelt KS V-Grooved Pulleys, optibelt TB Taper Bushes . 46optibelt KS V-Grooved Pulleys, Types . 47optibelt KS V-Grooved Pulleys, Standards – Design Criteria – Types . 48optibelt KS V-Grooved Pulleys for Wedge Beltsand for Classic V-Belts . 49-50optibelt KS V-Grooved Pulleys US Standard for Wedge Belts . 51optibelt KS V-Grooved Pulleys for Kraftbands . 52-53Optibelt Deep Grooved Pulleys . 544 OPTIBELT GMBH, GERMANY

TABLE OF CONTENTSSTANDARD RANGEMETALoptibelt KS V-Grooved Pulleys for Cylindrical Bores . 64-69DRIVE CALCULATIONManual Calculation . 71-82optibelt KS V-Grooved Pulleys for Taper Bushes . 55-63optibelt TB Taper Bushes. 70Formulas and Calculation Example . 83-85Calculation with optibelt CAP . 86POWER RATINGSoptibelt RED POWER 3 . 87-91optibelt BLUE POWER . 92-95optibelt SK . 96-100optibelt VB . 101-111optibelt SUPER X-POWER M S . 112-115optibelt SUPER XE-POWER PRO M S . 116-119optibelt SUPER TX M S . 120-123SPECIAL DRIVESV-Flat Drives . 124-126optibelt OPTIMAX HF Flat Belts. 127-134Tension/Guide Idlers . 135-137Twist Drives . 138-140Drive Elements with Aramid Structures . 141-142DESIGN SUPPORTBelt Tension for Optibelt V-Belts and Kraftbands . 143-147Calculating the Axial Load/Shaft Load . 148Technical Tools . 149-151Belt Tension. 152-153Installation, Maintenance and Storage . 155-159Properties . 160-163Problem – Causes – Remedies . 164-165Length Measurement Conditions and Conversion Factors,Length Tolerances . 166-170Conversion Factors . 171-172CONVEYOR ELEMENTSProduct Description . 173Design Guidelines . 174optibelt KB Kraftbands with Patterned Top Surface . 174optibelt PKR Endless V-Belts andoptibelt KB Kraftbands with Patterned Top Surface . 175optimat PKR Open-Ended V-Belts DIN 2216 with Patterned Top Surface . 176optibelt RR Round Belts, optibelt KK Plastic V-Belts andoptibelt KK Plastic V-Belts with Patterned Top Surface/Pointed Roof Profile .177ANNEXOverview of Standards . 178Data Sheet for the Calculation/Checking of Drives . 179-180Data Sheet for the Calculation/Checking of Conveyor Systems . 181-182 OPTIBELT GMBH, GERMANY5

PRODUCT DESCRIPTIONoptibelt RED POWER 3 HIGH PERFORMANCE WEDGE BELTSStructureoptibelt RED POWER 3 wedge belts:Chloroprene compound with transverseoriented fiberPolyester tension cord/maintenance-freeChloroprene compound with transverseoriented fiberApplication areasoptibelt RED POWER 3 wedge belts were especiallydeveloped for mechanical engineering. The applicationareas include compressors, pumps, presses, fans and otherheavy duty drives.Standardisation/Dimensionsoptibelt RED POWER 3 wedge belts in the profiles SPZ, SPA,SPB, SPC, 3V/9N, 5V/15N and 8V/25N are standardisedaccording to DIN 7753 Part 1, ISO 4184 and ARPM/MPTA.Abrasion-resistantcover fabricThe tension cord consists of a special polyester cord. Due tothe special processing of the tension cord the optibelt REDPOWER 3 wedge belt is very low-stretch and maintenancefree, so that re-tensioning is not necessary.The transverse fibre mixture on top of and under the tensioncord guarantees a high dynamic load of the belt andensures great flexibility. The cover fabric is highly flexibleand abrasion-proof.PropertiesThe optibelt RED POWER 3 is maintenance-free due to thehigh quality components and the special production method.The production processes are continuously monitored usingstate-of-the-art static and dynamic testing devices. Theoptibelt RED POWER 3 is suitable for the application indrives with idler pulleys due to its special construction.The optibelt RED POWER 3 has the following properties: Maintenance-free Powerful Cost-effective S C Plus usable in sets Environmentally friendly Electrically conductive according to ISO 1813 Oil-resistant Heat-resistant Dust-protected as standardOn request with acceptance test certificate according toEN 1020 “3.1.B“.V-belt tensioningFor the initial installation of optibelt RED POWER 3 V-belts,the same methods are used as for standard Optibelt V-belts.The tension values are to be calculated on the same basis orto be taken from the table on page 147. Once correctlytensioned optibelt RED POWER 3 V-belts need no re-tensioning.Table 1ProfileSPZSPASPBSPCBelt top widthbo 9.7Datum widthbd 8.5111419Belt heighth 81013186390140224Recommended minimumdatum pulley diameter dd minWeight per meter(kg/m)12.7 16.322 0.074 0.123 0.195 0.377Flex rate (s-1)fB max 100Belt speed (m/s)vmax 55**v 55 m/s. Please consult our Application Engineering Department.Table 2Profile3V/9N5V/15N8V/25NDatum widthbo 91525Belt heighth 81323Recommended minimumoutside pulley diameterda min67151315Weight per meter (kg/m) 0.074 0.195 0.575Flex rate (s-1)fB max 100Belt speed (m/s)vmax 55**v 55 m/s. Please consult our Application Engineering Department.6 OPTIBELT GMBH, GERMANY

PRODUCT DESCRIPTIONoptibelt BLUE POWER HIGH PERFORMANCE WEDGE BELTSStructure/Propertiesoptibelt BLUE POWER wedge belts:Chloroprene compound with transverseoriented fiberStandardisation/Dimensionsoptibelt BLUE POWER wedge belts in the profiles SPZ, SPA,SPB, SPC, 3V/9N, 5V/15N and 8V/25N are standardisedaccording to DIN 7753 Part 1, ISO 4184 and ARPM/MPTA.Aramid tension cordChloroprene compound with transverseoriented fiberAbrasion-resistantcover fabricThe aramid tension cord has extremely low stretch comparedto common materials such as polyester. The breakingstrength is almost twice as high with the same cord diameter. Nevertheless, the fibre is extremely flexible.The high quality specially prepared aramid tension cord isembedded in a rubber compound. It is supported by the topand bottom structures. These consist of a polychloroprenerubber compound with tranverse fibres.The abrasion-proof cover fabric is coated with a specialrubber compound and covers the whole belt. The V-belt iselectrically conductive according to ISO 1813Application areasoptibelt BLUE POWER belts are mainly used when highest power transmission levels are required there are limited design dimensions there is only little installation and tensioning space high temperature influences occurThis way. a much better performance is guaranteed e. g.with the same number of belts. Even the operation of oncecritical drives is now largely free of risk. Higher load limitsare now safety zones. Thus optibelt BLUE POWER belts aremainly implemented in heavily loaded drives: in critical drives in mechanical engineering in special machines in agricultural machineryApplicationAttention: When retro-fitting existing drives please letOptibelt check the tension. As part of this description not allcriteria can be dealt with. Please consult our ApplicationEngineering Department.Table 3ProfileSPBSPCBelt top widthbo 16.322Datum widthbd 1419Belt heighth 1318Distancehd 3.54.81802800.2060.389Recommended minimumdd mindatum pulley diameterWeight per meter (kg/m) Flex rate (s-1)fB max 100Belt speed (m/s)vmax 50**v 50 m/s. Please consult our Application Engineering Department.Table 4Profile5V/15N8V/25NDatum widthbo 1525Belt heighth 13231913150.2040.603Recommended minimumoutside pulley diameter da minWeight per meter (kg/m) Flex rate (s-1)fB max 100Belt speed (m/s)vmax 50**v 50 m/s. Please consult our Application Engineering Department. OPTIBELT GMBH, GERMANY7

PRODUCT DESCRIPTIONoptibelt SK HIGH PERFORMANCE WEDGE BELTSDIN 7753 PART 1 / ISO 4184Structureoptibelt SK high performance wedge belts consist of:Top layerPolyester tension cordCoreCover fabricThe polyester tension cord is standa

TECHNICAL MANUAL V-BELT DRIVES This technical manual contains all important technical information and methods for the design and calculation of drives with Optibelt V-belts and