21.220 - Flexible drives and transmissions
ICS 21.220 Details
Flexible drives and transmissions
Flexible Antriebe. Kraftubertragungen
Transmissions et entrainements souples
Prenos moči z gibkimi elementi
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IEC TS 61156-1-2:2023 specifies symmetrical pair/quad electrical transmission characteristics and test methods present in IEC 61156-1:2002 (Edition 2) and not carried into IEC 61156-1:2007 (Edition 3). It details characteristic impedance test methods and function fitting procedures, the open/short-circuit method and the background of unbalance attenuation measurement.
It is extended by a description of the balunless measurements technique, which is an amendment to the former technical report and is improved and incorporated into this new edition. The complete document is transferred into a technical specification.
- Technical specification74 pagesEnglish languagesale 15% off
This document specifies a dynamic test method for the quality control of V-ribbed belts (PK profile) which are used predominantly for accessory drive applications in the automotive industry. The dimensional characteristics of the belts and of corresponding pulleys are the subject of ISO 9981.
- Standard14 pagesEnglish languagesale 15% off
This document establishes formulae for the calculation of power rating and centre distance of standard synchronous belts on two pulley drives. It is applicable to trapezoidal belts only. It does not apply to curvilinear synchronous belts. The numerical values of certain parameters used in the calculations depend upon the pitch and the construction of the belt and are specified by the belt manufacturer.
- Standard5 pagesEnglish languagesale 15% off
This document specifies the methods of checking the regularity of the grooves and pulleys for V-belts specified in the system based on datum width. The grooved pulleys may be designed for use with classical or narrow V-belts. Inspection parameters and tolerances of grooved pulleys are covered by appropriate International Standards.
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This document specifies a test method for determining the centre distance variation of V-belt and V‑ribbed belt drives as a criterion for the uniformity of V-belts and V-ribbed belts. This document does not apply to elastic V-ribbed belts.
- Standard4 pagesEnglish languagesale 15% off
This document specifies the principal characteristics of metric pitch curvilinear synchronous endless belts and pulleys in G, H, R, and S profile systems for use in synchronous belt drives (also known in the past as timing belt drives, positive belt drives, gear belt drives) for mechanical power transmission and where positive indexing or synchronization can be required. The principal belt and pulley characteristics include the following: a) nominal belt tooth dimensions; b) belt tooth pitch spacing; c) belt length and width dimensions and tolerances; d) belt length measurement specifications; e) pulley groove dimensions and tolerances; f) pulley diameter and width dimensions and tolerances; g) pulley quality specification.
- Standard56 pagesEnglish languagesale 15% off
This document specifies the principal dimensional characteristics of V-ribbed pulley groove profiles, together with the corresponding endless V-ribbed belts, of PH, PJ, PK, PL and PM profiles which are used for general industrial applications except elastic belts. The PK belt was originally established for automotive accessory drive applications and ISO 9981 deals specifically with that particular field.
- Standard13 pagesEnglish languagesale 15% off
- Standard13 pagesEnglish languagesale 15% off
This document specifies the characteristics of synchronous endless belts and their related pulleys for use in automotive applications such as engine camshaft drives. The characteristics include: — belt pitch spacing; — belt nominal tooth dimensions; — belt width and width tolerance; — belt pitch length and pitch length tolerance; — pulley groove dimensions and tolerances; — pulley tolerances and quality specifications. Test methods for measuring belt pitch length and lateral runout are also included.
- Standard20 pagesEnglish languagesale 15% off
- Standard20 pagesEnglish languagesale 15% off
This document specifies the limiting values for the adjustment of centres of two transmission pulleys. It is applicable to: — crowned pulleys for flat belts; — grooved pulleys for V-belts, either single, multiple or joined; — grooved pulleys for V-ribbed belts; — toothed pulleys for synchronous belts.
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ISO 5288:2017 specifies the terms and definitions related to the use of synchronous belt drives for mechanical power transmission and where positive indexing or synchronization is required.
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ISO 17396:2017 specifies the principal characteristics of synchronous endless and open belts and pulleys of the profile systems T and AT for use in synchronous belt drives for mechanical power transmission and where positive indexing or synchronization can be required. NOTE Synchronous belt drives have been known by various titles in the past: for example, timing belt drives, positive belt drives, gear belt drives. The principal belt and pulley characteristics include a) nominal belt tooth dimensions, b) belt tooth pitch spacing, c) belt length and width dimensions, d) belt length measurement specifications, e) pulley groove dimensions and tolerances, f) pulley diameter and width dimensions and tolerances, and g) pulley quality specification. The belts of the profile systems T and AT are made of polyurethane with high-tension fine steel cord tension members in most cases. As far as certain forces are given in this document, these values are only valid for these kinds of belt. For polyurethane belts with different tensile cords, i.e. aramid or rubber belts reinforced with glass fibre, the values can be different. It is intended that the user and the manufacturer agree about suitable values. Open belts made of thermoplastic polyurethane can be spliced to work as endless belts in conveyor applications. In this case, the tolerances are not valid for the splicing area of the endless spliced belt.
- Standard18 pagesEnglish languagesale 15% off
- Standard18 pagesEnglish languagesale 15% off
ISO 19347:2015 specifies the principal characteristics of synchronous endless belts and pulleys for use in synchronous endless belt drives[1] for mechanical power transmission and where positive indexing or synchronization is required. The principal characteristics includes the following: a) belt nominal tooth dimensions; b) belt length and width dimensions and tolerances; c) belt length-measurement specifications; d) pulley grooves dimensions and tolerances; e) pulley dimensions and tolerances; f) pulley quality specification. [1] These drives have been known under various names in the past, for example: timing belt drives, positive belt drives, gear belt drives.
- Standard26 pagesEnglish languagesale 15% off
- Standard26 pagesFrench languagesale 15% off
ISO 9563:2015 specifies the maximum and minimum electrical resistance of antistatic endless and open ended synchronous belts. This International Standard provides guidelines to allow testing of synchronous belts to prove their static conductive (dissipative) properties as well as a corresponding production control test method. The application of this International Standard is limited to new belts intended to be used in an explosive atmosphere or in situations where there is a fire risk. The test is intended to ensure that the belt is sufficiently conductive to dissipate charges of electricity which may form on it in service. In the case of a production control test, the decision is left to national standards or agreement between interested parties as to whether the test shall be carried out on each belt in a batch or on only a percentage of belts in a batch. For each proof test, the belt manufacturer shall determine which type of electrode and conductive coating material shall be used.
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ISO 15654:2015 specifies an axial force fatigue test method for transmission roller chains and leaf chains. The tests being of the fluctuating tension type, carried out at room temperature in air, with the force applied along the longitudinal axis of the chain. It also specifies procedures for statistically analysing the test results and gives formats and elements for presenting the results of fatigue tests and analyses.
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ISO 4347:2015 specifies the characteristics of chains used for general lifting purposes, together with the rim profiles of sheaves and the chain attachment ends of clevises. It gives dimensions, limits for interchangeability, length measurement, preloading, minimum tensile strengths and minimum dynamic strengths.
- Standard20 pagesEnglish languagesale 15% off
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ISO 606:2015 specifies the characteristics of short-pitch precision roller and bush chains with associated sprockets suitable for the mechanical transmission of power and allied applications. It covers dimensions, tolerances, length measurement, preloading, minimum tensile strengths and minimum dynamic strength. Although Clause 5 applies to chain sprockets for cycles and motor cycles, this International Standard is not applicable to their chains, which are covered by ISO 9633 and ISO 10190, respectively.
- Standard35 pagesEnglish languagesale 15% off
- Standard32 pagesFrench languagesale 15% off
ISO 1081:2013 specifies the terms and definitions, in English and French, relating to V-belt drives, V-belts, hexagonal belts, joined V-belts and the corresponding V-grooved pulleys, V-ribbed belt drives, V-ribbed belts and V-ribbed pulleys, as well as the corresponding symbols.The general definitions are valid irrespective of the system describing the pulleys. The dimensions of pulley grooves can be defined either on the basis of the datum width or on the basis of the effective width. As a result, two systems for the definition and description of the dimensions of pulleys and belts have been developed. The two systems are independent of each other.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard18 pagesEnglish languagesale 15% off
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This International Standard specifies a dynamic test method for the quality control of V-ribbed belts
(PK profile) which are used predominantly for accessory drive applications in the automotive industry.
The dimensional characteristics of the belts and of corresponding pulleys are the subject of ISO 9981.
- Standard15 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard11 pagesEnglish languagesale 15% off
This International Standard specifies the maximum electrical resistance of antistatic endless V-ribbed
belts, joined V-belts, and single V-belts including wide section belts and hexagonal belts, as well as
corresponding production control and individual proof methods of measurements.
The application of this International Standard is limited to new belts intended to be used in an explosive
atmosphere or in situations where there is a fire risk. The test is intended to ensure that the belt is
sufficiently conductive to dissipate charges of electricity which can form on it in service.
In case of a production control test, the decision is left to national standards or agreement between
interested parties as to whether the test shall be carried out on each belt in a batch or on only a percentage
of belts in a batch.
NOTE For each proof test, it is intended that the belt manufacturer determine which type of electrode and
conductive coating material can be used.
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EN 13001-3-2 is to be used together with EN 13001-1 and EN 13001-2 and as such they specify general conditions, requirements and methods to prevent mechanical hazards of wire ropes of cranes by design and theoretical verification. NOTE Specific requirements for particular types of cranes are given in the appropriate European Standard for the particular crane type. The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during intended use and reasonably foreseeable misuse. Clauses 5 to 6 of this standard are necessary to reduce or eliminate risks associated with the following hazard: - exceeding the limits of strength (yield, ultimate, fatigue). This European Standard is not applicable to cranes which are manufactured before the date of its publication as EN and serves as reference base for the European Standards for particular crane types (see Annex C). EN 13001-3-2 deals only with the limit state method in accordance with EN 13001-1.
- Standard36 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard is to be used together with EN 13001 1 and EN 13001 2 and as such they specify general conditions, requirements and methods to prevent mechanical hazards of wire ropes of cranes by design and theoretical verification.
NOTE Specific requirements for particular types of cranes are given in the appropriate European Standard for the particular crane type.
The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during intended use and reasonably foreseeable misuse. Clauses 5 to 6 of this standard are necessary to reduce or eliminate risks associated with the following hazard:
− exceeding the limits of strength (yield, ultimate, fatigue).
This European Standard is not applicable to cranes which are manufactured before the date of its publication as EN and serves as reference base for the European Standards for particular crane types (see Annex C).
EN 13001 3 2 deals only with the limit state method in accordance with EN 13001 1.
- Standard36 pagesEnglish languagesale 10% offe-Library read for1 day
ISO 1813:2014 specifies the maximum electrical resistance of antistatic endless V-ribbed belts, joined V-belts, and single V-belts including wide section belts and hexagonal belts, as well as corresponding production control and individual proof methods of measurements. The application of ISO 1813:2014 is limited to new belts intended to be used in an explosive atmosphere or in situations where there is a fire risk. The test is intended to ensure that the belt is sufficiently conductive to dissipate charges of electricity which can form on it in service.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard12 pagesEnglish languagesale 15% off
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ISO 1081:2013 specifies the terms and definitions, in English and French, relating to V-belt drives, V-belts, hexagonal belts, joined V-belts and the corresponding V-grooved pulleys, V-ribbed belt drives, V-ribbed belts and V-ribbed pulleys, as well as the corresponding symbols.The general definitions are valid irrespective of the system describing the pulleys. The dimensions of pulley grooves can be defined either on the basis of the datum width or on the basis of the effective width. As a result, two systems for the definition and description of the dimensions of pulleys and belts have been developed. The two systems are independent of each other.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard18 pagesEnglish languagesale 15% off
- Standard14 pagesEnglish and French languagesale 15% off
This International Standard specifies the methods of checking the regularity of the grooves and pulleys for V-belts specified in the system based on effective width. The grooved pulleys can be designed for use with classical or narrow V-belts. The V-belts can be either single or joined units. It is intended to specify the inspection parameters and tolerances of grooved pulleys in future International Standards.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard9 pagesEnglish languagesale 15% off
- Standard10 pagesFrench languagesale 15% off
This International Standard specifies the principal characteristics of synchronous endless belts for use in synchronous belt drives for mechanical power transmission and where positive indexing or synchronization is required.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard12 pagesEnglish languagesale 15% off
- Standard12 pagesFrench languagesale 15% off
This International Standard specifies the principal characteristics of synchronous pulleys for use in synchronous endless belt drives for mechanical power transmission and where positive indexing or synchronization is required. The principal characteristics include: a) tooth dimensions and tolerances; b) pulley dimensions and tolerances; c) quality specification. As far as dimensions are concerned, the pulleys specified in this International Standard are used interchangeably with the belts specified in ISO 5296.
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This International Standard specifies the principal characteristics of grooved pulleys (for groove sections AJ, BJ, CJ and DJ), intended to take joined classical V-belts for industrial power transmission drives.
- Standard6 pagesEnglish languagesale 15% off
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
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This International Standard specifies test methods for determining the physical properties of synchronous belts used in driving engine parts, such as camshafts, fuel injection pumps, balancing shafts. These test methods are intended to provide a means of characterizing synchronous belt properties for belts which are evaluated and qualified by dynamic laboratory and field testing.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
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ISO 9980:2012 specifies the methods of checking the regularity of the grooves and pulleys for V-belts specified in the system based on effective width. The grooved pulleys can be designed for use with classical or narrow V-belts. The V-belts can be either single or joined units.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard9 pagesEnglish languagesale 15% off
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This International Standard specifies, for narrow V-belts of cross-sections 9N/J (for pulley grooves of effective width 8,9 mm), 15N/J (for pulley grooves of effective width 15,2 mm) and 25N/J (for pulley grooves of effective width 25,4 mm), - the standard effective lengths, - the tolerances on effective lengths, - the centre distance variations, - the conditions for measuring the effective length and the centre distance variation, and- - the designation and marking.
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This International Standard specifies a fatigue test for the quality control of narrow V-belts (sections AV 10 and AV 13) intended for driving the auxiliaries of internal combustion engines used for automotive purposes.
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Specifies the principal characteristics of grooved pulleys, intended to take both single and joined narrow V-belts for industrial power transmission drives. Some background information on the series of effective diameters is given in Annex A.
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This International Standard specifies the requirements for belts and pulleys for V-belt drives used for driving auxiliaries of internal combustion engines for the automotive industry.
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Specifies the principal dimensional characteristics of V-ribbed pulley groove profiles, together with the corresponding endless V-ribbed belts of PK profile which are used predominantly for automotive accessory drive applications.
- Standard11 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard8 pagesEnglish languagesale 15% off
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This International Standard specifies the characteristics of quality which are common to all transmission pulleys. It establishes specific quality levels for the finish and balance of transmission pulleys and test pulleys. This International Standard is applicable to transmission pulleys for V-belts, V-ribbed belts, flat or synchronous belts; it does not apply to those pulleys for variable speed drives that have one or more moving flanges. The other characteristics of transmission pulleys can be found in the relevant International Standards.
- Standard7 pagesEnglish languagesale 10% offe-Library read for1 day
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This part of this European Standard defines the general requirements for wire intended for mechanical steel ropes. Additional requirements are given in the following parts of this European Standard, which are specific to each category of wire.
This part of this European Standard specifies:
- dimensional tolerances;
- mechanical characteristics;
- requirements relating to the chemical composition of the steel wire;
- conditions to be satisfied by any coating.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
This International Standard specifies test methods for determining the physical properties of synchronous belts used in driving engine parts, such as camshafts, fuel injection pumps, balancing shafts. These test methods are intended to provide a means of characterizing synchronous belt properties for belts which are evaluated and qualified by dynamic laboratory and field testing. NOTE The dimensional characteristics of these belts are the subject of ISO 9010.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard10 pagesEnglish languagesale 15% off
- Standard10 pagesFrench languagesale 15% off
ISO 5291:2011 specifies the principal characteristics of grooved pulleys (for groove sections AJ, BJ, CJ and DJ), intended to take joined classical V-belts for industrial power transmission drives.
- Standard6 pagesEnglish languagesale 15% off
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard6 pagesFrench languagesale 15% off
This International Standard specifies the characteristics of quality which are common to all transmission pulleys. It establishes specific quality levels for the finish and balance of transmission pulleys and test pulleys. This International Standard is applicable to transmission pulleys for V-belts, V-ribbed belts, flat or synchronous belts; it does not apply to those pulleys for variable speed drives that have one or more moving flanges. The other characteristics of transmission pulleys can be found in the relevant International Standards.
- Standard7 pagesEnglish languagesale 10% offe-Library read for1 day
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IEC 60512-15-3:2008 details a standard test method to assess the effectiveness of the insert retaining system to withstand torsional stresses likely to be encountered during normal use.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
ISO 1275.2006 specifies requirements for double-pitch precision roller chains suitable for the mechanical transmission of power and for conveyors, together with those for their associated sprockets. It covers dimensions, tolerances, length measurement, preloading and minimum tensile strengths. These double-pitch chains have been derived from some of the short-pitch transmission precision roller chains covered by ISO 606 having certain common dimensions but of double the pitch. The chains are intended for use under less onerous conditions with respect to speed and power transmitted than are the base chains from which they are derived. ISO 1275.2006 primarily applies to sprockets with 5 to 75 teeth inclusive (with intermediate numbers of teeth 5 and a half to 74 and a half inclusive). The preferred numbers of teeth are 7, 9, 10, 11, 13, 19, 27, 38 and 57.
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ISO 13203:2005 establishes a list of equivalent terms, in English, French and German, related to the main mechanical chains, classified in accordance with their design and/or use, as well as to their principal components, fittings and sprockets.
- Standard26 pagesEnglish languagesale 15% off
ISO 10823:2004 gives guidelines for the selection of chain drives, composed of a roller chain and sprockets conformant with ISO 606, for industrial applications. The selection procedures and chain ratings it describes provide for roller chain drives operating under specified conditions with a life expectancy of approximately 15 000 h. Owing to the wide variations in loading characteristics, environmental conditions and achieved maintenance, it is desirable that the supplier of the chains and sprockets be consulted to ensure that the performance of the product meets the requirements specified both by the user and by this International Standard.
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ISO 8419:2003 specifies, for narrow V-belts of cross-sections 9N/J (for pulley grooves of effective width 8,9 mm), 15N/J (for pulley grooves of effective width 15,2 mm) and 25N/J (for pulley grooves of effective width 25,4 mm), the standard effective lengths, the tolerances on effective lengths, the centre distance variations, the conditions for measuring the effective length and the centre distance variation, and the designation and marking.
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- Standard7 pagesEnglish languagesale 15% off
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ISO 6972:2002 specifies the characteristics of cranked-link mill chains of welded construction suitable for conveying bulk materials, together with associated attachments and chain sprockets. The chain dimensions specified in ISO 6972:2002 ensure interchangeability of both complete chains and individual links for repair purposes. ISO 6972:2002 is applicable to sprockets with between 5 and 36 teeth. Specifications are also given for eight types of attachment for use with the conveyor chains conforming to ISO 6972:2002.
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ISO 6971:2002 specifies the characteristics of cranked-link drag chains of welded construction suitable for conveying bulk materials, together with associated attachments and chain sprockets. The chain dimensions specified in ISO 6971:2002 ensure interchangeability of both complete chains and individual links for repair purposes. ISO 6971:2002 is applicable to sprockets with between 5 and 20 teeth. Specifications are also given for five types of attachment for use with the conveyor chains conforming to ISO 6971:2002.
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This International Standard specifies the principal characteristics of grooved pulleys (for groove sections 9N/J, 15N/J and 25N/J) intended to take both single and joined narrow V-belts for industrial power transmission drives. Some background information on the series of effective diameters is given in annex A. NOTE The effective width of a groove is regarded as the basic dimension of standardization in the effective system for grooves and for the corresponding narrow V-belts considered as a whole.
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