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The IS0 Recommendation R603, Bonded Abrasive Products -Grinding- Wheel Dimensions
(Part 1) , was drawn up by Technical Committee ISO/TC 29, Small Tools, the Secretariat of
which is held by the Association Francaise de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1950 and led, in 1963, to the
adoption of a Draft IS0 Recommendation.
In September 1964, this Draft IS0 Recommendation (No. 736) was circulated to all the
IS0 Member Bodies for enquiry. It was approved, subject to a few modifications of an editorial
nature, by the following Member Bodies:
Argentina Hungary Poland
Australia India Spain
Austria Iran Sweden
Belgium Israel Switzerland
Canada Italy Turkey
Chile Japan U.A.R.
Czechoslovakia Korea, Rep. of United Kingdom
France Netherlands U.S.A.
Germany New Zealand Yugoslavia
One Member Body opposed the approval of the Draft:
U.S.S.R.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0
Council, which decided, in August 1967, to accept it as an IS0 RECOMMENDATION.
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ISOlR 603 - 1967 (E)
IS0 Recommendation R 603 August 1967
BONDED ABRASIVE PRODUCTS
GRINDING-WHEEL DIMENSIONS
(Part 1)
CONTENTS
Yugc’
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1. Plain grinding-wheels for fettling and general sharpening (Type 1)
........ 4
1 .l Low-speed fettling, minor and general sharpening (for hand use) . 4
1.2 High-speed fettling . 4
2. High-speed cup grinding-wheels for portable machines (Types 6 and 11) .
5
2.1 Straight cup grinding-wheels (Type 6) . 5
2.2 Taper cup grinding-wheels (Type 11) . 5
3. Grinding-wheels for cutting and slitting, without reinforcement (Type 1) . . . . . 5
4. Plain grinding-wheels for external cylindrical grinding (Types 1, 5 and 7) . 6
4.1 Plain grinding-wheels without recess (Type 1) . 6
4.2 Plain grinding-wheels with one recess (Type 5)
............... 7
4.3 Plain grinding-wheels with two recesses (Type 7)
.............. 8
5.
Surface grinding-wheels (Types 1 and 2) . 9
5.1 Plain grinding-wheels (Type 1)
..................... 9
5.2 Cylinder grinding-wheels (Type 2) . 9
6. Centreless grinding-wheels (Types 1, 5 and 7) .
10
6.1 Centreless grinding-wheels . 10
6.2 Centreless control grinding-wheels . 10
7. Plain grinding-wheels for saw sharpening (Type 1) . 11
7.1 Grinding-wheels for saws other than metal-slitting saws . 11
................
7.2 Thin grinding-wheels for metal-slitting saws 11
8. Segments of grinding-wheels with isosceles trapezoidal section . . . . . . . . . . 12
FOREWORD
Except where otherwise indicated, the dimensions shown for these grinding wheels are in accor-
dance with those in IS0 Recommendation R 525-1966, Bonded Abrasive Products-General
Features (Designation- Ranges of Dimensions-Prqfi‘les) .
The letter symbols used for dimensions in this IS0 Recommendation conform to those shown
in IS0 Recommendation R 525. Readers are reminded that they may be replaced in national
standards by symbols conforming to the current practice of the country concerned until inter-
national agreement on a uniform system of symbols is reached.
The illustrations accompanying the tables are purely diagrammatic; for cup grinding-wheels
and plain recessed wheels in particular, the internal angles should be replaced by radii which
obviate any tendency for cracks to form, but which nevertheless permit correct assembly of the
components on the spindle.
The dimensions in this IS0 Recommendation are expressed in both millimetres and inches.
As the holes are identical, wheels from the metric series and those from the inch series can be
mounted on the same machines; since the overall dimensions may be slightly different in the
two systems, however, wheels of either series can be considered only as equivalent to each other.
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ISOlR 603 - 1967 (E)
1. PLAIN GRINDING WHEELS FOR FETTLING AND GENERAL SHARPENING
(Type 1)
1.1 Low-speed fettling, minor and general sharpening
(for hand use)
Dimensions in millimetres Dimensions in inches
E d D E d
D
13 3 ‘%i 3/s 0.5118
80 610
16 4 l/2 3/4 0.6299
100 13’20
5 3/4 1
125 20 25
20 6 3A 1 0.7874
150 20 25
8 3/4 1
200 20 25
20 25 32 10 %i 1 1%
250
32 12 1 1% 1% 1.26
300 25 32 40
14 WI 1% 2
350 32 40 50
6
40 50 63 40 16 1% 2 2% 1.5748
400
21/z 3 2
500 50 63 80 50.8 20 2
2% 3 3
63 80 76.2 24
600
80 30 3
750
1.2 High-speed fettling
1.2.1 on portable grinding-machines 1.2.2 on fixed or swing-frame grinding-machines
Dimensions in millimetres
Dimensions in millimetres Dimensions in inches Dimensions in inches
I
E
D / E d D d D ) E Id
DI E Id
,
80 610 10 3 l/4 33 0.3937 350 50 127.0 14 2 5
100 20 25 13 4 3/4 1 0.5118 400 50 63 16 2 2v2
152.4
9
2 21/z 3 6
20
125 500 50 63 80
20 25 5 3A 1
16 6 3/4 1 .0.6299
600 63 80
150 20 25
vi 3
24
’ 304.8
200 25 8 1 750 80 100 30 3 4 12
900 80 100 36 3 4
NOTE. - The followmg values from the transitional series of holes are permissible by special
agreement in place of the nearest value of d in the Tables above:
in millimetres 12.7 15.88 19.05 31.75 38.1
in inches
‘/2 78 % 1% 1%
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ISOIR 603 - 1967 (E)
2. HIGH-SPEED CUP GRINDING-WHEELS FOR PORTABLE MACHINES
(Types 6 and 11)
2.1 Straight cup grinding-wheels (Type 6)
Dimensions in millimetres
-
E d* j
. . . . . . . . . . . .
...........
...........
...........
...........
...........
........... ...........
...........
...........
...........
...........
. . . . . . . . .
W
22.23 20
...... ... ... . . . ... . . . .
... . . ................ .....................
......................
........................................... .....................
......................
........................................... .....................
..................... ......................
.....................
.......................................... ......................
..................... .....................
..................... ......................
.....................
......................... ................. ......................
..................... .....................
..................... ......................
.....................
.............................. ....... . ............ . .
I
t
Dimensions in inches
--J---u
Grinding-wheels with nuts. - For grinding-
wheels which have a nut instead of a hole,
for preference always adopt the UNI-
FIED thread 5/8 - 1 1 L:NC for this nut.
*Exceptions to the recommended series of holes in IS0 Recommendation R 525-l 966.
2.2 Taper cup grinding-wheels (Type 11)
Dimensions in millimetres
D
E d” B K min.
4 El v
- -
100 80 20 45
I R
1 u
I I---
125 100 50 22.23 25 20 54
TTq-i-q 1 1 40 L
Dimensions in inches
D E d* B
K min.
4 4
*Exceptions t o the recommended series of holes in IS0 Recommendation R 525-1966.
3. GRINDING-WHEELS FOR CUTTING AND SLITTING, WITHOUT REINFORCEMEN
...