AGMA Releases New Publications by ISO Central
The AGMA Technical Division recently announced the following publications by ISO Central:
ISO/TS 10300-20:2021, Calculation of load capacity of bevel gears — Part 20: Calculation of scuffing load capacity — Flash temperature method.
ISO/TR 10300-32:2021, Calculation of load capacity of bevel gears — Part 32: ISO rating system for bevel and hypoid gears — Sample calculation for scuffing load capacity.
As a reminder – because these are ISO documents that AGMA has not adopted (but ISO lets us sell), members will not be allowed to download these documents for free and there is no member discount.
ISO/TS 10300-20:2021, Calculation of load capacity of bevel gears — Part 20: Calculation of scuffing load capacity — Flash temperature method
Pages: 30
Price: $125.00
ISO/TR 10300-32:2021, Calculation of load capacity of bevel gears — Part 32: ISO rating system for bevel and hypoid gears — Sample calculation for scuffing load capacity
Pages: 174
Price: $215.00
Introduction
These documents and the other parts of ISO 10300 series provide a coherent system of procedures for the calculation of the load capacity of bevel and hypoid gears. ISO 10300 series is designed to facilitate the application of future knowledge and developments, also the exchange of information gained from experience.
Scope – Part 20
This document provides a calculation method for bevel and hypoid gears regarding scuffing based on experimental and theoretical investigation. This calculation method is a flash temperature method.
The formulae in this document are intended to establish uniformly acceptable methods for calculating scuffing resistance of straight, helical (skew), spiral bevel, Zerol and hypoid gears made of steel. They are applicable equally to tapered depth and uniform depth teeth. Hereinafter, the term “bevel gear” refers to all of these gear types; if not the case, the specific forms are identified.
A calculation method of the scuffing load capacity of bevel and hypoid gears based on an integral temperature method is not available when this document is published.
Scope – Part 32
This document provides calculation examples for different bevel gear designs regarding the scuffing load capacity according to ISO/TS 10300-20. The initial geometry data of the gear necessary for these calculations are in accordance with ISO 23509.
The term "bevel gear" is used to mean straight, helical (skew), spiral bevel, zerol and hypoid gear designs. Where this document pertains to one or more, but not all, the specific forms are identified.
Scope – Part 20 & Part 32
The formulae in these documents are based on virtual cylindrical gears and restricted to bevel gears whose virtual cylindrical gears have transverse contact ratios of εvα < 2. The results are valid within the range of the applied factors as specified in ISO 10300-1 (see ISO 6336-2). Additionally, the given relations are valid for bevel gears of which the sum of profile shift coefficients of pinion and wheel is zero (see ISO 23509).
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