INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXAYHAPOAHAR OPrAHMSAuklR I IO CTAHAAPTkl3A~Wl Synchronous bel ts Calculation of pow[.]
I S0 I N TE RN ATI ON AL S TAN D ARD 529 Se co n d ed i t i on 7- - I N TE RN ATI ON AL ORG AN I ZATI ON ORG AN I SATI ON I N TE RN ATI ON ALE M E XAYH AP OAH AR Syn ch ron o u s d ri ve Co u rro i es cen tre s yn ch ro n e s bel ts - Cal cu l ati on OP r AH M SAu kl R of FOR STAN D ARD I ZATI ON DE N ORM ALI SATI ON I - I O CTAH AAP Tkl A~ Wl power rati n g an d d i stan ce - Cal cu l de l a pu i s s an ce tran smi ssi bl e et de l ’ e n t raxe Re f e re n ce n u mb e r I S0 5295 : 987’ ( E) Fo rewo rd I S0 ( th e n at i o n al I n t ern at i o n al s t an d ard s St an d ar d s bod y th e ri g h t Draf t th e n ormal l y i n t eres t e d me n t al th e is to an d I S0 % Th i s t h at an y ed i t i on , I n tern ati on al in by ar e I S0 n ote t h at r e f e re n ce u n l ess was co mmi t t ees h as I n t ern at i o n al al s o t ech n i cal acce p t an ce acco r d an ce wi t h f e d e rat i o n pre pari n g t ake part in th e ar e I n t ern at i o n al I S0 membe r e s t abl i s h ed o rg an i z at i o n s , co mmi t t e es as E ach been of I n t ern at i o n al h as g o ve r n - wo rk ci rcu l at ed to St an d ar d s by p r o ce d u r e s req u i ri n g Co mmi t t e e I SO/TC at vo t i n g p r e p ar e d by Tech n i cal 41 , an d repl ace s the fi rst ed i t i o n ( I S0 5295: 1 , t abl e of tech n i cal l y al l l ri t ern at i on al mad e o t h e rwi s e Org an i zat i on Pri n t e d i n Swi t z erl an d in bo d i e s of co mmi t t ee I SO, th e th ei r a wo rl d wi d e veebel t sl can ce l s re vi s ed by bef ore 5295 wi t h is wo r k t ech n i cal co mmi t t ee l i son member I S0 Th e a t ech n i cal ap p r o ve d the bo d i e s ) ad o p t e d app ro val ( i n cl u d i n g ed i t i on been sh ou l d t h at l at est bel t s s e co n d U sers Th e y St an d ar d an d h as f or St an d ard i z at i o n ) t h rou g h wh i ch on St an d ar d s ap pro val I n t ern at i o n al wh i ch ou t f or n o n - g o ve rn me n t al , bo d i e s f or member carri ed re p r e s e n t e d Co u n ci l 75 ( I S0 a su bj ect I n t ern at i o n al Pu l l eys an d in be me mbe r l east Org an i z at i o n bo d i e s h e re i n St an d ar d s to an y ot h er u n d erg o s t at ed for St an d ard i zat i on , revi si on I n t ern at i o n al 987 l f ro m S t an d ar d t i me to t i me i mpl i es i ts I N TERN ATI ON AL STAN DARD Syn ch ron ou s dri ve Th i s bel ts cen tre Scope an d - Cal cu l ati on of power rati ng of appl i cati on Stan d ard of syn ch ron ou s Th e power bel ts n u meri cal ti on s an d d epen d sh al l be rati n g on val u es u pon t wo of th e speci fi ed an d establ i sh es formu l ae for Symbol s th e Tabl e cal cu l ati on an d cen tre pu l l ey d ri ves certai n pi tch by th e d i stan ce th e bel t u sed i n th e stru cti on stan d ard Symbol parameters an d of cal cu l a- of th e Descri pti on pi tch pb of th e teeth of th e Un i ts bel t mm be rated mm an d pu l l eys bel t bs man u factu rer ho wi ath of th e bel t base wi d th st an d ard of bel t to th e wi d est of mm pi tch pb 3, ( see tabl e 2) l i near mass of m a wi d th Defi n i ti on bel t power rati n g di ti on s h as : Po wer u n d er for been th at a speci fi ed a sati sfactory i n stal l ed speci fi ed peri od an d is syn ch ron ou s g eometri cal of an d ti me, mai n tai n ed in bel t ambi en t provi d ed th at a man n er proper th e can w a bel t h avi n g kg /m b, , al l owabl e T, tran smi t 5295 : 997 (El di stan ce fi el d I n tern ati on al I S0 worki n g havi ng ang u l ar ten si on vel oci ty of a N b, , a wi dth of the smal l er radl s pu l l ey d ri ve bel t V vel oci ty n u mber Zi m/s of teeth of the smal l er of teeth of the l arg er bel t pu l l ey Th e power rati n g d epen d s u pon : n u mber z2 pu l l ey - th e pi tch of th e bel t an d pu l l ey teeth ; zb Gi l - th e bel t th e mass of a of teeth of the of teeth in mesh smal l er wi d th ; c - n u mber n u mber l i near metre of bel t; PO th e al l owabl e worki n g ten si on in th e bel t; P centre di stance of pu l l eys mm rati ng of a bel t of base kW th e an g u l ar vel oci ty of th e smal l er pu l l ey; of a bel t of base kW rati ng b, wi dth 4, - th e n u mber of teeth of th e smal l er kz pu l l ey; ent C1 teeth factor in i nteger mesh part expressi on - th e n u mber of teeth in mesh on th e smal l er the b, , power wi dth - the power wi dth - on pu l l ey factor on l y of the fol l owi ng pu l l ey I S0 Factor Tabl e kw Pi tch Th e factor k, i s g i ven by th e code formu l a - Base wi d th s 5295 : 967 ( E) ( mi l l i metres) b so MXL ,1 XXL bs k - W= * (l l ) b ( XL SO L wh ere Th e b, , d epen d s resu l ti ng u pon cal cu l ati on th e pi tch of k, code as g i ven bei n g rou n ded i n tabl e pl aces accordi n g to th e u su al ven ti on off to 25, H 76 XH 01 , two XXH deci mal 93 > 27 s0 5265 U DC 987 (I 621 85 052 44 Descri ptors Pri ce : based : on syn ch ron ou s pag es tran smi ssi on , bel t dri ves, bel ts, power tran smi ssi on bel ts, syn ch ron ou s bel ts, rated power, ru l es of cal cu l ati on