ASME B94.7 1980 R2015
$98.04
ASME B94.7 Hobs – Reaffirmed: 2015
| Published By | Publication Date | Number of Pages |
| ASME | 1980 | 42 |
This standard covers types, sizes, tolerances, marking and nomenclature for hobs of one-piece construction used for generating involute gears, involute splines, parallel side splines, involute serrations and roller chain sprockets. The purpose of this standard is to provide information on standard types, sizes, tolerances, marking and nomenclature of hobs to encourage uniformity in specifications. The inclusion of dimensional data in this Standard is not intended to imply that all of the products described are stock production sizes. Consumers are requested to consult with manufacturers concerning availability of products.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 7 | 1. SCOPE 2. PURPOSE 3. DEFINITION OF A HOB 4. DESCRIPTION HOB TYPES COVERED 5. NOMENCLATURE |
| 8 | FIGURES 1 Illustration of Terms Relating to Hobs |
| 9 | 2 Climb Hobbing 3 Conventional Hobbing |
| 12 | 6. TABLES |
| 13 | TABLES 1 Single Thread Coarse Pitch Hob Sizes for Ground and Unground Hobs 2 Multiple Thread Coarse Pitch Hob Sizes for Ground and Unground Hobs |
| 14 | 3 Single Threads Fine Pitch Hob Sizes for Ground and Unground Hobs 4 Multiple Thread Fine Pitch Hob Sizes for Ground and Unground Hobs 5 Single Thread Combination Pitch Hob Sizes for Ground and Unground Hobs |
| 15 | 6 Single Threads Hob Sizes for Parallel Side Splines |
| 16 | 7 Single Thread Hob Sizes for 30 , 37.5 and 45 P.A. Involute Splines 8 Multiple Thread Hob Sizes for 30 , 37.5 and 45 P.A. Involute Splines |
| 17 | 9 Roller Chain SprocketHob Sizes Single Thread, for Chain Pitches, .250 thru 3.000 |
| 18 | 10 Single Thread Coarse Pitch Gear Hob Tolerances |
| 20 | 11 Multiple Thread Coarse Pitch Gear Hob Tolerances |
| 23 | 12 Single Thread Fine Pitch Gear Hob Tolerances |
| 25 | 13 Multiple Thread Fine Pitch Gear Hob Tolerances |
| 27 | 14 Single Thread Hobs for Parallel Side Splines |
| 29 | 15 Single Thread Hob Tolerances for 30 P. A. Involute Splines |
| 31 | 16 Multiple Thread Hob Tolerances for 30 P. A. Involute Splines |
| 33 | 17 Single Thread Hob Tolerances for 37.5 and 45 P. A. Involute Splines |
| 35 | 18 Marking Symbols |
| 36 | 19 Standard Keyways for Hobs |
| 37 | 4 Hobs for ANSI B92.1 Standard 45 P. A. Involute Splines 5 Hobs for ANSI B92.1 Standard 37.5 P. A. Involute Splines |
| 38 | 6 Hobs for ANSI B92.1 Standard 30 P. A. Involute Splines 7 Flat Root Major Diameter Fit and Flat Root Side Fit |
| 39 | APPENDIX A Conversion Tables from Inch to Millimeter |
