Technical Manual - Plastorgomma Service

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Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Manufacturing and Distrbution Organisation of the Arntz Optibelt Group . . . . . . . . . . . . . . . . . 2 Construction, sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Nominal dimensioner, width tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Section and double section types, belt designation, standard length, standard width . . . . . . . . . 6-8 Standard Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Special Compound Constructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Further Special Constructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Drive Design Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Basic <strong>Service</strong> Factor c 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Permitted Belt Tension / Additional Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Guidelines for Selecting the Timing Belt Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Formulae and Drive Design Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-18 Belt Tension / Minimum for Adjustment x/y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Power Ratings Type XL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21 Type L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-23 Type H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-25 Type XH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27 Type XXH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29 Design Hints Flanges / Minimum Pulley Diameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Double sides timing belts to ISO 5296 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Installation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Problems - Causes - Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Length - Measuring Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Timing Belt Pulleys Dimensions and Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-37 Pitch diameter and outside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-39 Optibelt ZRS Standard timing belt pulleys for cylindrical bores . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-45 Standard timing belt pulleys for taper bushes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-51 Optibelt TB Taper bushes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Optibelt ZRS Recommnend special design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Data Sheet for Calculating / Checking Drive Installations . . . . . . . . . . . . . . . . . . . . . . . . . 54-55 3
Construction 4 Product Description optibelt ZR timing belts to ISO specification 5296 Tension Cord The tension cord is continuous, spirally wound, fibre glass. This material has a high tensile strength and is extremely flexible; its extremely low stretch is essential in this particular application. The high specific tensile strength of the tension cord ensures that it has a small cross-section, so that the Optibelt ZR timing belt is very thin. Top Surface The tension cord is encased in a hardwearing and flexible top surface of highquality rubber compound. This protects the tension cord from oil, damp and friction and wear and tear. This robust material is highly resistant to mineral oils, but not to vegetable and water soluble cooling and cutting oils. Teeth The teeth are made of a moderately hard, shear and wear resistant rubber compound bonded to the top surface to form a single mass. The shape and arrangement of the teeth are such that the pulley engages the belt teeth precisely and with minimum friction. As long as 6 teeth or more are in mesh on the small pulley, their shear resistance is greater than tensile strength of the tension cord. Fabric Cover To reduce wear and tear, the tooth faces are covered in a tough, friction resistant fabric giving an effect similar to the surface hardening applied to gears. After an extended running period, the surface of this protective fabric, which has a very low coefficient of friction, acquires a polished surface which enhances belt life. Tooth Pitch, Designations Optibelt ZR timing belts are manufactured to ISO 5296 and toothed timing pulleys to ISO 5294. Both come in six standard sections. Table 1: Belt sections and tooth pitch Section Tooth Pitch t (mm) (inches) MXL 2.032 0.080 ( 2 / 25) XL 5.080 0.200 ( 1 / 5) L 9.525 0.375 ( 3 / 8) H 12.700 0.500 ( 1 / 2) XH 22.225 0.875 ( 7 / 8) XXH 31.750 1.250 (11 / 4) Tooth pitch is the distance from the centre of one tooth to the centre of the next measured at the pitch line, which corresponds to the level of the tension cord. The pitch or datum diameter of the pulley is a theoretical dimension which lies outside the outer diameter. d p
Page 1 and 2: Technical Manual for optibelt ZR Ti
Page 3: Produktionsstätten und Vertriebsor
Page 7 and 8: 360 MXL 91.44 45 432 MXL* 109.73 54
Page 9 and 10: 8 Belt d d e e s s i i g g n n a a
Page 11 and 12: Further Special Constructions Optib
Page 13 and 14: The basic service factor c 0 takes
Page 15 and 16: Diagram 1 Speed of the small pulley
Page 17 and 18: Prime Mover Three-phase squirrel ca
Page 19 and 20: 18 Drive Design Formulae and Drive
Page 21 and 22: Table 10 Speed of small pulley (r.p
Page 31 and 32: Flanges The pulleys may be fitted w
Page 33 and 34: Safety hints Open and readily acces
Page 35 and 36: Measuring the Pitch Length to ISO 5
Page 37 and 38: Table 22: Pulley widths to ISO 5294
Page 39 and 40: Table 27 38 Timing Belt Pulleys Pit
Page 41 and 42: 40 Designation optibelt ZRS Standar
Page 47 and 48: 46 optibelt ZRS Standard timing bel
Page 53 and 54: Bore diameter d 2 (mm) Torque (Nm)
Page 55 and 56:
Data Sheet for Calculating/Checking
Page 57 and 58:
The Optibeit offer is aimed exclusi
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Technical Manual - Plastorgomma Service

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