| 
Diametro 
 
 (mm) 
 | 
Spessore nucleo in acciaio(mm) 
 | 
Dimensione segmento (mm) 
 | 
N. segmento 
 | 
| 
Φ250 
 | 
2.2 
 | 
40×3.2×10(15) 
 | 
17 
 | 
| 
Φ300 
 | 
2.2 
 | 
40×3.2×10(15,20) 
 | 
21 
 | 
| 
Φ350 
 | 
2.2/2.4 
 | 
40×3.4×10(15,20) 
 | 
24 
 | 
| 
Φ400 
 | 
2.6 
 | 
40×3.6×10(15,20) 
 | 
28 
 | 
| 
Φ450 
 | 
2.8/3.0 
 | 
40×4.0×10(15,20) 
 | 
32 
 | 
| 
Φ500 
 | 
3.0/3.2 
 | 
40×4.2×10(15,20) 
 | 
36 
 | 
| 
Φ600 
 | 
3.6/3.8 
 | 
40×4.8×10(15,20) 
 | 
36/42 
 | 
| 
Φ700 
 | 
4 
 | 
40×5.2×10(15,20) 
 | 
42 
 | 
| 
Φ800 
 | 
4.5 
 | 
40×6.0×10(15,20) 
 | 
46 
 | 
| 
Φ900 
 | 
5.0  
 | 
24×7.0/6.4×15(20) 
 | 
64 
 | 
| 
Φ1000 
 | 
5.0  
 | 
24×7.0/6.4×15(20)   
 | 
70 
 | 
| 
Φ1200 
 | 
5.5  
 | 
24×8.0/7.4×15(20) 
 | 
80 
 | 
| 
Φ1300 
 | 
6.0  
 | 
24×8.4/7.8×15(20)   
 | 
88 
 | 
| 
Φ1400 
 | 
6.5  
 | 
24×8.4/7.8×15(20) 
 | 
92 
 | 
| 
Φ1600 
 | 
7.2  
 | 
24×9.2/8.4×15(20)   
 | 
108 
 | 
| 
Φ1800 
 | 
7.5  
 | 
24×10.0/9.0×15(20) 
 | 
120 
 | 
| 
Φ2000 
 | 
8.0  
 | 
24×10.5/9.5×15(20,25) 
 | 
128 
 | 
| 
Φ2200 
 | 
9.0  
 | 
24×11.0/10.0×15(20,25) 
 | 
132 
 | 
| 
Φ2500 
 | 
9.0  
 | 
24×11.5/10.5×15(20,25) 
 | 
140 
 | 
| 
Φ3000 
 | 
9.5  
 | 
24×12.5/13.5×20(25,30) 
 | 
160 
 | 
| 
Φ3500 
 | 
9.5  
 | 
24×13.5/14.5×20(25,30) 
 | 
180 
 |