PD ISO/TR 14521:2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Gears. Calculation of load capacity of wormgears
Hardcopy , PDF
14-05-2020
English
28-02-2011
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Foreword
Introduction
1 Scope
2 Normative references
3 Symbols and terminology
4 Formulae for calculation of dimensions
5 General
6 Geometrical data to be known for calculation
7 Forces, speeds and parameters for the calculation of
stresses
8 Efficiency and power loss
9 Wear load capacity
10 Surface durability (pitting resistance)
11 Deflection
12 Tooth root strength
13 Temperature safety factor
14 Determination of the wheel bulk temperature
Annex A (informative) - Notes on physical parameters
Annex B (informative) - Methods for the determination of the
parameters
Annex C (informative) - Lubricant film thickness according to
EHL - theory
Annex D (informative) - Wear path definitions
Annex E (informative) - Notes on calculation wear
Annex F (informative) - Notes on tooth root strength
Annex G (informative) - The utilisation of existing tooling for
machining of worm wheel teeth
Annex H (informative) - Adaptation of equations for the reference
gear to own results of measurements
Annex I (informative) - Life time estimation for worm gears with
a high risk of pitting damage
Annex J (informative) - Examples
Bibliography
Describes equations for calculating the load capacity of cylindrical worm gears and covers load ratings associated with wear, pitting, worm deflection, tooth breakage and temperature.
| Committee |
MCE/5
|
| DevelopmentNote |
Supersedes 05/30134748 DC. (03/2011)
|
| DocumentType |
Standard
|
| Pages |
100
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO/TR 14521:2010 | Identical |
| DIN 1709:1981-11 | COPPER ZINC ALLOY CASTINGS (BRASS AND SPECIAL BRASS CASTINGS) |
| DIN 1714:1981-11 | COPPER-ALUMINIUM CASTING ALLOYS (CAST ALUMINIUM BRONZE) - CASTINGS |
| ISO/TR 10495:1997 | Cylindrical gears Calculation of service life under variable loads Conditions for cylindrical gears according to ISO 6336 |
| DIN 1693 : 1961 | |
| ISO 701:1998 | International gear notation Symbols for geometrical data |
| ISO 1122-2:1999 | Vocabulary of gear terms Part 2: Definitions related to worm gear geometry |
| ISO 6743-6:1990 | Lubricants, industrial oils and related products (class L) Classification Part 6: Family C (Gears) |
| ISO 10347:1999 | Worm gears Geometry of worms Name plates for worm gear units centre distances, information to be supplied to gear manufacturer by the purchaser |
| DIN 3974-2:1995-11 | Accuracy of worms and worm gears - Part 2: Tolerances for individual errors |
| DIN 1691:1985-05 | FLAKE GRAPHITE CAST IRON (GREY CAST IRON) - PROPERTIES |
| ISO/TR 10828:2015 | Worm gears — Worm profiles and gear mesh geometry |
| BS 721-2:1983 | Specification for worm gearing Metric units |
| DIN 3974-1:1995-11 | Accuracy of worms and worm gears - Part 1: General bases |
| DIN 1705:1981-11 | COPPER TIN AND COPPER TIN ZINC CASTING ALLOYS (CAST TIN BRONZE AND GUN METAL) - CASTINGS |
| EN 1563:2011 | Founding - Spheroidal graphite cast irons |
| ISO 6336-6:2006 | Calculation of load capacity of spur and helical gears Part 6: Calculation of service life under variable load |
| ISO/TR 10064-4:1998 | Code of inspection practice Part 4: Recommendations relative to surface texture and tooth contact pattern checking |
| EN 1982:2017 | Copper and copper alloys - Ingots and castings |
| EN 1561:2011 | Founding - Grey cast irons |
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