Example:
11 | V | 9 | D100 – T35 – U10 – X3 – V70 – H20 | D | 91 | –N | 100 | –H | –AL |
---|---|---|---|---|---|---|---|---|---|
I | II | III | IV | V | VI | VII | VIII | IX | X |
I – the number for body shape | ||
---|---|---|
1 | Straight wheel with no recess, D/H < 1,8 | |
2 | Ring, D/H < 1,8 | |
3 | Straight wheel with boss one side | |
4 | Straight wheel, tapered one side | |
6 | Straight wheel, recessed one side | |
9 | Double-recessed wheel | |
11 | Taper cup wheel with angle between 45° and 90° | |
12 | Flaring cup with angle greater than 45° | |
14 | Straight wheel with boss two sides |
II – the number for abrasive layer shape | |
---|---|
A | |
D | |
FF | |
L | |
AH | |
DD | |
G | |
LL | |
S | |
B | |
E | |
H | |
M | |
U | |
C | |
EE | |
J | |
P | |
V | |
CH | |
F | |
K | |
Q | |
Y |
III – the number for abrasive layer position | ||
---|---|---|
1 | Layer is attached to the body's periphery and spread over its entire thickness | |
2 | Attached to the side face of the wheel | |
3 | Attached to both sides of the wheel | |
4 | Attached to the metal core’s side face with a bevel extending to the wheel's lower center | |
5 | Attached to the side face with an arc extending from a low position on the wheel’s periphery towards its higher center | |
6 | Attached to body's periphery but not extended to the whole width of metal core | |
7 | Attached to the metal core’s side face, may reach the center, but it is not spread to the periphery | |
8 | Wheel's body consists of only abrasive grains | |
9 | Attached to wheel’s periphery and to one of the corners | |
10 | Attached to the metal core’s internal circumference |
IV – dimensions |
---|
D – diameter T – thickness U – diamond layer width W – layer width X – diamond layer thickness V – face angle H – hole diameter |
V – abrasive |
---|
D – diamond B – cubic boron nitride |
VI – grit size |
---|
Average size of abrasive particles is specified in µm |
VII – bond hardness | |
---|---|
J | soft |
L | |
N | medium |
P | |
R | hard |
VIII – concentration |
---|
50 – 2.2 carats/cm³ 75 – 3.3 carats/cm³ 100 – 4.4 carats/cm³ 125 – 5.5 carats/cm³ 150 – 6.6 carats/cm³ |
IX – bond |
---|
R – resin P – polyimide H – hybrid |
X – body material |
---|
AL – aluminum CS – carbon steel SC – sintered copper ST – steel |