AS 1788.1-1987

1 - AS 1788.1-1987 ABRASIVE WHEELS - DESIGN, CONSTRUCTION, AND SAFEGUARDING
4 - PREFACE
5 - CONTENTS
7 - SECTION 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 APPLICATION.
7 - 1.3 RELATIONSHIP WITH REGULATIONS.
7 - 1.4 NEW DESIGN AND INNOVATIONS.
7 - 1.5 INTERPRETATIONS.
7 - 1.6 REFERENCED DOCUMENTS.
7 - 1.7 DEFINITIONS.
7 - 1.7.1 Abrasive wheel
7 - 1.7.2 Accompanying documents
7 - 1.7.3 Blotters
7 - 1.7.4 Bonded wheel.
7 - 1.7.5 Chuck
8 - 1.7.6 Cup-back bushing
8 - 1.7.7 Exhaust zones
8 - 1.7.8 Flanges
8 - 1.7.9 Grinding face
8 - 1.7.10 Grinding operations.
9 - 1.7.11 Guard
9 - 1.7.12 Maximum operating speed
9 - 1.7.13 Peripheral speed
9 - 1.7.14 Reducing bush
10 - 1.7.15 Regulating wheel
10 - 1.7.16 Reinforced wheel
10 - 1.7.17 Regulatory Authority
10 - 1.7.18 Rotational frequency
10 - 1.7.19 Shall and should
10 - 1.7.20 Steel rings
10 - 1.7.21 Tape winding (or wire winding)
10 - 1.7.22 Wheel shape
10 - 1.7.23 Wheel speed
11 - SECTION 2. WHEEL SHAPES AND SPEEDS
11 - 2.1 WHEEL SHAPES.
11 - 2.1.1 Straight wheel, Type 1
11 - 2.1.2 Cylinder wheel, Type 2
11 - 2.1.3 Abrasive discs
11 - 2.1.4 Taper-sided wheel, Type 4
11 - 2.1.5 Recessed-one-side wheel, Type 5
12 - 2.1.6 Straight cup wheel, Type 6
12 - 2.1.7 Double recessed wheel, Type 7
12 - 2.1.8 Flaring cup wheel, Type 11
12 - 2.1.9 Dish wheel, Type12
12 - 2.1.10 Saucer wheel, Type 13
13 - 2.1.11 Cone and plug wheels, Types 16, 17, 18, 18R and 19.
14 - 2.1.12 Relieved and or recessed wheels, Types 20, 21, 22, 23, 24, 25 and 26.
15 - 2.1.13 Depressed centre wheels, Types 27 and 28
15 - 2.1.14 Cutting off wheels.
15 - 2.1.15 Coping wheels.
15 - 2.1.16 Tuck pointing wheels.
15 - 2.1.17 Notching wheels.
15 - 2.1.18 Mounted wheels.
16 - 2.1.19 Threaded hole wheels
16 - 2.2 GENERAL OPERATING SPEEDS.
16 - 2.2.1 Standard speeds.
18 - 2.2.2 Test speeds.
18 - 2.3 SPECIAL OPERATING SPEEDS.
18 - 2.3.1 Requirements for special speeds.
18 - 2.3.2 Conditions governing special speeds.
18 - 2.3.3 Machine builder's responsibility.
18 - 2.3.4 Wheel manufacturer's responsibility.
19 - SECTION 3. MATERIALS
19 - 3.1 GUARDS.
19 - 3.3 SPINDLES.
19 - 3.4 WORK RESTS.
19 - 3.2 FLANGES.
19 - 3.5 TOXICITY OF ABRASIVE WHEELS.
20 - SECTION 4. DESIGN AND CONSTRUCTION
20 - 4.1 DESIGN.
20 - 4.1.1 Machine design.
20 - 4.1.2 Spindle.
20 - 4.1.3 Flanges.
20 - 4.1.4 Power.
20 - 4.1.5 Guards.
20 - 4.1.6 Exhaust provision.
20 - 4.1.7 Reducing bushing.
20 - 4.2 CONSTRUCTION.
20 - 4.2.1 Work rests.
21 - 4.2.3 Threaded hole wheels.
24 - 4.2.4 Mounting of abrasive discs (inserted nut and inserted washer types).
24 - 4.2.5 Mounting of plate mounted type wheels.
25 - SECTION 5. SPECIFIC REQUIREMENTS FOR CONSTRUCTION OF GUARDS
25 - 5.1 GENERAL REQUIREMENT.
25 - 5.2 CUP WHEELS.
25 - 5.3 GUARD EXPOSURE ANGLES.
25 - 5.3.1 General.
25 - 5.3.2 Bench and floor stands.
25 - 5.3.3 Cylindrical grinders.
27 - 5.3.4 Surface grinders and cutting off machines.
27 - 5.3.5 Swing frame grinders.
27 - 5.3.6 Semi-automatic snagging machines.
27 - 5.3.7 Top grinding.
28 - 5.3.8 Portable grinders.
28 - 5.4 EXPOSURE ADJUSTMENT.
28 - 5.5 ENCLOSURE REQUIREMENTS.
28 - 5.5.1 Guard.
28 - 5.5.2 Additional enclosure.
28 - 5.6 MATERIALS AND DIMENSIONS.
28 - 5.6.1 General.
30 - 5.6.2 Cutting off wheels larger than 400mm diameter
30 - 5.7 MATERIAL SPECIFICATIONS.
30 - 5.8 GUARDS FOR FIXED GRINDING MACHINES.
31 - 5.9 GUARDS FOR PORTABLE GRINDING MACHINES.
31 - 5.9.1 General.
31 - 5.9.2 Drawn steel guards.
31 - 5.9.3 Revolving cups.
32 - SECTION 6. SPECIFIC REQUIREMENTS FOR CONSTRUCTION OF FLANGES
32 - 6.1 GENERAL REQUIREMENTS.
32 - 6.2 FINISH AND BALANCE.
32 - 6.3 UNIFORMITY OF DIAMETER.
32 - 6.4 RECESS AND UNDERCUT.
32 - 6.5 CONTACT.
33 - 6.6 FITTING OF DRIVING FLANGE.
33 - 6.7 DIMENSIONS.
33 - 6.7.1 Straight flanges, relieved and unrelieved.
33 - 6.7.2 Straight adaptor flanges for heavy duty grinding
33 - 6.7.3 Sleeve flanges.
33 - 6.8 TYPE 27 AND TYPE 28 WHEELS.
33 - 6.8.1 Wheels less than 180 mm diameter.
33 - 6.8.2 Wheels equal to or greater than 180 mm diameter
37 - SECTION 7. MOUNTED WHEELS
37 - 7.1 MAXIMUM SAFE OPERATING SPEEDS.
37 - 7.2 SPECIAL MAXIMUM OPERATING SPEED.
49 - SECTION 8. HANDLING AND STORAGE
49 - 8.1 HANDLING.
49 - 8.2 STORAGE.
51 - SECTION 9. MARKING OF ABRASIVE WHEELS
51 - 9.1 MARKING.
51 - 9.1.1 General.
51 - 9.1.2 General marking.
51 - 9.1.3 Additional marking.
51 - 9.2 METHOD OF MARKING.
52 - APPENDIX A - SPEED CONVERSION TABLE

Specifies requirements for the design and construction of abrasive wheels and the manufacture and installation of abrasive wheels and ancillary equipment. Particular requirements are given for the construction of guards for all equipment fitted with abrasive wheels and for the construction of flanges for use with abrasive wheels. Includes sections covering standard (normal) maximum operating speeds for all types of wheels. The Standard is extensively illustrated.

This standard sets out requirements for the design and construction of abrasive wheels (excluding natural sandstones) and includes requirements for safety guards, flanges, chucks, and revolving cups. Requirements for the proper storage, handling, and identification of abrasive wheels are also included. Application and operating requirements are included in AS 1788.2.

First published (as AS CZ12) 1965.
AS 1788 first published 1975.
AS 1788.1 separately published 1987.