BS ISO 10300-3:2014
$198.66
Calculation of load capacity of bevel gears – Calculation of tooth root strength
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 52 |
This part of ISO 10300 specifies the fundamental formulae for use in the tooth root stress calculation of straight and helical (skew), Zerol and spiral bevel gears including hypoid gears, with a minimum rim thickness under the root of 3,5 mmn. All load influences on tooth root stress are included, insofar as they are the result of load transmitted by the gearing and able to be evaluated quantitatively. Stresses, such as those caused by the shrink fitting of gear rims, which are superposed on stresses due to tooth loading, are intended to be considered in the calculation of the tooth root stress, σF, or the permissible tooth root stress σFP. This part of ISO 10300 is not applicable in the assessment of the so-called flank breakage, a tooth internal fatigue fracture (TIFF).
The formulae in this part of ISO 10300 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 also ISO 6336-3[1]). Additionally, the given relationships are valid for bevel gears, of which the sum of profile shift coefficients of pinion and wheel is zero (see ISO 23509).
This part of ISO 10300 does not apply to stress levels above those permitted for 103 cycles, as stresses in that range could exceed the elastic limit of the gear tooth.
Warning The user is cautioned that when the formulae are used for large average mean spiral angles (βm1 + βm2)/2 > 45°, for effective pressure angles αe > 30° and/or for large face widths b > 13 mmn, the calculated results of ISO 10300 (all parts) should be confirmed by experience.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | Section sec_1 Section sec_2 Section sec_3 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | Section sec_3.1 Section sec_3.2 Section sec_3.3 Section sec_3.4 Section sec_3.5 Section sec_3.6 Section sec_4 Section sec_5 4 Symbols, units and abbreviated terms 5 General rating procedure |
| 11 | Section sec_6 Section sec_6.1 6 Gear tooth rating formulae — Method B1 6.1 Tooth root stress formula |
| 12 | Section sec_6.2 6.2 Permissible tooth root stress |
| 13 | Section sec_6.3 Section sec_6.4 Section sec_6.4.1 Section sec_6.4.1.1 6.3 Calculated safety factor 6.4 Tooth root stress factors |
| 14 | Figure fig_1 Section sec_6.4.1.2 Section sec_6.4.1.2.1 |
| 15 | Section sec_6.4.1.2.2 Section sec_6.4.1.2.3 |
| 16 | Section sec_6.4.1.2.4 Section sec_6.4.1.2.5 Section sec_6.4.1.3 |
| 18 | Figure fig_2 |
| 19 | Section sec_6.4.2 Section sec_6.4.3 Section sec_6.4.4 |
| 20 | Figure fig_3 |
| 21 | Section sec_6.4.5 Section sec_6.5 Section sec_6.5.1 6.5 Permissible tooth root stress factors |
| 22 | Table tab_f Figure fig_4 Section sec_6.5.2 |
| 23 | Table tab_1 |
| 24 | Table tab_h Figure fig_5 |
| 25 | Section sec_7 Section sec_7.1 Section sec_7.2 7 Gear tooth rating formulae — Method B2 7.1 Tooth root stress formula 7.2 Permissible tooth root stress |
| 26 | Section sec_7.3 Section sec_7.4 Section sec_7.4.1 7.3 Calculated safety factor 7.4 Tooth root stress factors |
| 27 | Section sec_7.4.2 Section sec_7.4.3 |
| 28 | Figure fig_6 Section sec_7.4.4 Section sec_7.4.4.1 |
| 29 | Section sec_7.4.4.2 |
| 30 | Section sec_7.4.4.3 |
| 31 | Section sec_7.4.4.4 |
| 32 | Section sec_7.4.5 Section sec_7.4.5.1 |
| 36 | Section sec_7.4.5.2 |
| 37 | Section sec_7.4.5.3 |
| 41 | Section sec_7.4.5.4 Section sec_7.4.5.5 Section sec_7.4.6 Section sec_7.4.6.1 Section sec_7.4.6.2 |
| 42 | Section sec_7.4.6.3 |
| 43 | Section sec_7.4.6.4 |
| 44 | Section sec_7.4.7 Section sec_7.5 Section sec_7.5.1 Section sec_7.5.2 Section sec_8 Section sec_8.1 Section sec_8.1.1 7.5 Permissible tooth root stress factors 8 Factors for permissible tooth root stress common for method B1 and method B2 8.1 Size factor, YX |
| 45 | Table tab_m Figure fig_7 Section sec_8.1.2 Section sec_8.1.2.1 Section sec_8.1.2.2 |
| 46 | Section sec_8.1.2.3 Section sec_8.2 Section sec_8.2.1 Section sec_8.2.2 Section sec_8.2.3 Section sec_8.2.3.1 8.2 Life factor, YNT |
| 47 | Section sec_8.2.3.2 Section sec_8.2.3.3 Table tab_n Figure fig_8 |
| 48 | Table tab_2 |
| 49 | Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Bibliography |
