MARKING SYSTEM CUTTING WHEELS

 

1. Designation;

2. Max. operating speed / permissible rotation speed;

3. Wheel dimensions: mm/inch;

4. Barcode;

5. Warning signs;

6. Wheel characteristics: old marking system/new marking system;

7. Regulatory compliance;

8. Date of manufacture and logo;

9. Supplier information.


Dimensions on the example of this wheel:


D (diameter)
T (thicknees)
       H (hole diameter)
180  6.0  22.23

 

Type
Value
1 flat
27 depressed center
41 cut-off wheels
42 depressed cut-off disks



Grinding material Value
14А (A) brown aluminum oxide
25А (WA)
white aluminum oxide
38А (ZK) fused zirconium
53С, 54C (C) black silicon carbide
63C,64С(GC) green silicon carbide

 

Grit size      
GOST   GOST  
Abrasive grit  
 
F10 (200) F36 (50)
F12 (160) F40 (40)
F14 (160) F46 (40)
F16 (160/125) F54 (32)
F20 (100) F60 (25)
F22 (80) F70 (20)
F24 (80) F80 (20)
F30 (63) F90 (16)
Powders      
F100 (12) F180 (6)
F120 (10) F220 (5)
F150 (8)    
Micropowders      
 F230  (M63)  F360  (M40)
 F240  (M63/M50)  F400  (M28)
 F280  (M50)  F500  (M20)
 F320  (M50/M40)  F600  (M14)

 

Hardness Value
F, G (BM1, BM2) VERY SOFT
H, I, J (M1, M2, M3) SOFT
K, L (CM1, CM2) MEDIUM-SOFT
M, N (C1, C2) MEDIUM
O, P, Q (CT1, CT2, CT3) MEDIUM-HARD
R, S (T1, T2) HARD
T (BT) VERY HARD
V (ЧT) EXTRA HARD

 

Bonding material Value
V(K) ceramics
В(Б) bakelite
BF(БУ) bakelite with hardening elements
В4(Б4) bakelite with graphite filler