California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 3 - General Plant Equipment and Special Operations
Article 21 - Use, Care, and Protection of Abrasive Wheels
Table A-5 - Minimum Dimensions for Straight Flanges Used as Wheel Sleeves for Precision Grinding Only
Universal Citation: 8 CA Code of Regs A-5
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
| B | D | E | ||
| Wheel Diameter | Wheel Hole Diameter | Minimum Outside Diameter of Flange | Minimum Thickness of Flange at Bore | Minimum Thickness of Flange at edge of Undercut |
| Inches | Inches | Inches | Inches | Inches |
| 12 to 14 | 5 | 7 | 1/8 | 7/16 |
| 5 | 7 | 3/8 | 7/16 | |
| 6 | 8 | 3/8 | 7/16 | |
| Larger than 14 to 20 | 8 | 10 | 3/8 | 7/16 |
| 10 | 11 1/2 | 3/8 | 7/16 | |
| 12 | 13 1/2 | 3/8 | 7/15 | |
| 8 | 10 | 3/4 | 1/2 | |
| Larger than 20 to 30 | 10 | 11 1/2 | 3/4 | 1/2 |
| 12 | 13 1/2 | 3/4 | 1/2 | |
| 15 | 17 1/2 | 3/4 | 1/2 | |
| 12 | 13 1/2 | 3/4 | 1/2 | |
| 16 | 17 1/2 | 3/4 | 1/2 | |
| Larger than 30 to 42 | 18 | 19 1/2 | 3/4 | 1/2 |
| 20 | 21 1/2 | 3/4 | 1/2 | |
| 16 | 20 | 1 | 3/4 | |
| Larger than 42 to 60 | 20 | 24 | 1 | 3/4 |
| 24 | 29 | 1 1/8 | 7/8 |
1. New NOTE filed 11-22-85; effective thirtieth day thereafter (Register 85, No. 48).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
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