ELATECH® Drive Calculation
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Drive calculation guidelines Pulleys It is recommended to use pulleys with the maximum diameter allowed by the application in order to maximise the number of teeth in mesh and increase the belt peripheral speed. For applications where high positioning precision is required, it might be useful to use zero backlash pulleys. In order to guarantee a reliable drive, it is recommended to use superior quality pulleys. Minimum pulley diameter Minimum pulley diameter depends on belt construction but also on the load and the configuration of the drive. The values reported in the catalogue have been...

Drive installation When installing belts on pulleys, before tensioning the drive, check that the belt teeth and pulley grooves correctly match. Breaking load Belt breaking load is highly dependent on several factors including pulley alignment, clamping system and others. The data given in the catalogue are average values tested in our laboratory. It is recommended to use adequate safety factors and ask the ELATECH® technical department for minimum guaranteed breaking load in applications where it is needed. Belt drive tension Correct belt drive tension and alignment are very important...

ELADRIVE online calculation software for quick and reliable drive calculation Elatech online drive calculation support at: ELATECH’s ELADRIVE is a drive calculation program allowing efficient and time saving drive calculation with improved performances. Always up to date ELADRIVE online version is always up to date. RELIABLE SOLUTIONS! Fast and easy ELADRIVE offers a step by step drive calculation by an easy to follow menu with improved screen layouts for quicker navigation. SAVE YOUR TIME! Comprehensive application range ELADRIVE offers a drive calculation for all application technology...

LINEAR drives calculation Definitions and transmission cycle In most cases linear drives may be taken back to one of the two layouts shown, where a specific system of forces acts. “ OMEGA “ drive Linear drive Transmission cycle (rpm/time) Drive Calculation

Cspez [N] Aeff [mm] Fwdyn [N] Fwsta [N] Flmax [N] FUspez [N/cm] Fizul [N] mSred [kg] mUred [kg] sges [mm] Acceleration Deceleration Pulley width Belt width Belt pitch Belt modulus / spring rate Specific spring rate Centre distance Effective centre distance Bore diameter Outside pulley diameter Pitch circle diameter Idler pulley diameter Dynamic shaft load Static shaft load Maximum span force Resisting force of friction Specific tooth shear strength Pretension force per belt side Allowable tensile load Peripheral force Vertical lifting force Acceleration...

Calculation formula Torque Drive Calculation d ⋅n n⋅z⋅ t Linear speed = W = v Peripheral force 19100 60000 2000 ⋅ M P ⋅ 1000 P ⋅ 9550 2000 ⋅ M P 1000 n z t P 2000 ⋅ M 2000 ⋅ M = ⋅ 1000 P P 2000 2000 ⋅ M F = M = ⋅ 9550 ⋅ M d W ⋅⋅n P ⋅ 9550 2000 ⋅ M⋅ 9550 ⋅ FU = = d M ⋅ n FUFU v Ft = ⋅ ⋅ t n ⋅ zFtt = M FU = n v = U== 2000 ⋅ M ⋅= ⋅P ⋅ 1000 = v = d W vn dp F M= n Ft = M = W = P= = v dp v = 60000 v n dp⋅ n d W FU ⋅ d W= v ⋅ 9550 n d W d W ⋅ n d Wn ⋅pz ⋅ t F ⋅v M P dp n 19100 9550 1000 M = 19100 60000 P = = U1 = = v= C1 9550 1000 2000 19100 FU ⋅ 60000 n P ⋅ 9550 0 ⋅M F ⋅C b =FU ⋅ C M= b = dU ⋅ n1...

t Linear drives are correctly dimensioned when the total peripheDetermine the belt width dp dW v n FU ⋅ v M⋅n FU d W P ⋅ 9550 n⋅z⋅ t ral force,⋅ necessary for the requested work, satisfies the 3 tech- d W ⋅ n = P= = M= = v= nical parameters of n selected belt: the 9550 1000 2000 19100 F60000 U ⋅ C1 - tooth shear strength F ⋅v M ⋅ n - allowable tensile loadW ⋅ n d n⋅z⋅ t 19100 60000 ⋅ v = 2000v P = ⋅ n -= U π flexibility ⋅ v = v = ω = F = 2000 ⋅ M = P ⋅ 1000 19100 =t ab = ⋅ M n= 9550 1000 F 60000 = U 30 depending on the rpm of the small pulley (see tech- Uspez 2 ⋅ s ab P ⋅ 9550 data on tooth...

a ⋅ t 2 ⋅ 1000 v 2 ⋅ 1000 a ⋅ t 2 ⋅ 1000 v 2 ⋅ 1000 t ges = t ab + t c + t av s ab = b ab = s av = v av = 2 2 ⋅v b a 2 2 ⋅ av 2 ⋅ s ab 19100 ⋅ v 60000 ⋅ v t ab = = n= = LR ab a b ⋅ 1000 dW z⋅ Calculate shafttload C= ⋅ Cspez L R = L1 + L 2 FU ⋅ v M⋅n FU ⋅ d W ⋅n P ⋅ 9550 d W2 ⋅ s n⋅z⋅ t L1 ⋅ L 2 vv = sc = P= = M= = av = s shaft load under static conditions is: s c = v ⋅ t c1000 t av Being = U the resulting force on the slide, the positioning deviation ⋅ 1000 t c =n The ges = s ab + s c + s av 9550 F 19100 2000 60000 av a v ⋅ 1000 v ⋅ 1000 generated by belt elongation is: ab ⋅ t ⋅ 1000 v ⋅...

Selection graphs mass / acceleration LINEAR drives The selection graphs mass/acceleration, are a useful aid to the designer for the initial selection of the belt type and width in the linear motion applications. The graphs have been designed considering the maximum speed (rpm) generally used in the applications for every belt profile and pitch and have included a safety factor increasing with the acceleration. Therefore, depending on the specific values of the application, it might be necessary to change the belt width upon calculation.

Drive Calculation

Drive Calculation

Drive Calculation

Drive Calculation

Selection graphs corrected peripheral force / belt width LINEAR drives The selection graphs corrected peripheral force / belt width provide a quick indication on the belt width needed for each belt profile when a specific corrected load is applied. The graphs have been designed considering the maximum speed (rpm) generally used in the applications for every belt profile and pitch. No safety factor is included as safety factor usually depends on acceleration. Therefore, depending on the specific values of the application, it might be necessary to change the belt width upon calculation....