Physical features of belt
Trapezium tooth |
Item |
MXL |
XL XXL |
L |
H |
XH |
tensile strength (N/mm)≥ |
45 |
80 |
120 |
270 |
380 |
Reference force(N/mm) |
35 |
60 |
90 |
220 |
300 |
Stretching rate % ≤ |
4.0 |
Hardness of the back(Shore a) |
75+5 |
Fabric adhesion strength (N/mm)≥ |
/ |
5 |
6.5 |
8 |
10 |
Main core adhesion strength N≥ |
/ |
200 |
380 |
600 |
800 |
Teeth cutting strength (N/mm)≥ |
/ |
50 |
60 |
70 |
75 |
Trapezium tooth |
Item |
XXH |
T2.5 |
T5 AT5 |
T10 AT10 |
T20 AT20 |
tensile strength (N/mm)≥ |
450 |
45 |
80 |
270 |
380 |
Reference force(N/mm) |
360 |
35 |
60 |
220 |
300 |
Stretching rate % ≤ |
4.0 |
Hardness of the back(Shore a) |
75+5 |
Fabric adhesion strength (N/mm)≥ |
12 |
/ |
5 |
8 |
10 |
Main core adhesion strength N≥ |
1500 |
/ |
200 |
600 |
800 |
Teeth cutting strength (N/mm)≥ |
90 |
/ |
50 |
70 |
75 |
Round arc tooth |
Item |
2M S2M |
3M S3M |
S4.5M 5M S5M |
8M S8M |
14M S14M |
20 M |
tensile strength (N/mm)≥ |
45 |
90 |
160 |
300 |
400 |
520 |
Reference force(N/mm) |
35 |
70 |
130 |
240 |
320 |
410 |
Stretching rate % ≤ |
4.0 |
Hardness of the back(Shore a) |
75+5 |
Fabric adhesion strength (N/mm)≥ |
/ |
/ |
6 |
10 |
12 |
15 |
Main core adhesion strength N≥ |
/ |
/ |
400 |
700 |
1200 |
1600 |
Teeth cutting strength (N/mm)≥ |
/ |
/ |
50 |
60 |
80 |
100 |
Note: The tensile strength value is measured by the cut section of belt. If measure by a belt in circle, shall divide the number by 2 and then compare.
Width standard for different types of belt
Mode |
MXL |
XL |
L |
Belt width |
Code |
012 |
019 |
025 |
025 |
031 |
037 |
050 |
075 |
Width |
3.0 |
4.8 |
6.4 |
6.4 |
7.9 |
9.5 |
12.7 |
19.1 |
Mode |
L |
H |
XH |
Belt width |
Code |
100 |
075 |
100 |
150 |
200 |
200 |
300 |
400 |
Width |
25.4 |
19.1 |
25.4 |
38.1 |
50.8 |
50.8 |
76.2 |
101.6 |
Mode |
XXH |
T2.5 |
T5/AT5 |
Belt width |
Code |
200 |
300 |
400 |
500 |
4 |
6 |
10 |
6 |
Width |
50.8 |
76.2 |
101.6 |
127.0 |
4 |
6 |
10 |
6 |
Mode |
T5 AT5 |
T10 AT10 |
T20/AT20 |
Belt width |
Code |
10 |
16 |
25 |
16 |
25 |
32 |
50 |
32 |
Width |
10 |
16 |
25 |
16 |
25 |
32 |
50 |
32 |
Mode |
T20 AT20 |
3M S3M |
5M S4.5M S5M |
Belt width |
Code |
50 |
75 |
100 |
6 |
9 |
15 |
9 |
15 |
Width |
50 |
75 |
100 |
6 |
9 |
15 |
9 |
15 |
Mode |
5M S4.5M S5M |
8M S8M |
14M S14M |
Belt width |
Code |
25 |
30 |
30 |
40 |
50 |
85 |
55 |
85 |
Width |
25 |
30 |
30 |
40 |
50 |
85 |
55 |
85 |
Mode |
14M S14M |
20M |
Belt width |
Code |
115 |
170 |
70 |
85 |
115 |
170 |
230 |
290 |
340 |
Width |
155 |
170 |
70 |
85 |
155 |
170 |
230 |
290 |
340 |
Mode |
Pitch Pb |
Tooth height ht |
Belt thickness hs |
Angle 2β° |
MXL |
2.032 |
0.51 |
1.14 |
40 |
XL |
5.080 |
1.27 |
2.30 |
50 |
L |
9.525 |
1.91 |
3.60 |
40 |
H |
12.70 |
2.29 |
4.30 |
40 |
XH |
22.225 |
6.35 |
11.20 |
40 |
XXH |
31.750 |
9.53 |
15.70 |
40 |
T2.5 |
2.5 |
0.7 |
1.30 |
40 |
T5 |
5 |
1.2 |
2.20 |
40 |
T10 |
10 |
2.50 |
4.50 |
40 |
T20 |
20 |
5.00 |
8.00 |
40 |
AT5 |
5 |
1.20 |
2.70 |
50 |
AT10 |
10 |
2.50 |
5.00 |
50 |
AT20 |
20 |
5.00 |
8.00 |
50 |
Industrial synchronous belt with round arc tooth

HTD round arc tooth |
STPD/STS round arc tooth |
RPP/HPPD round arc tooth |
Code |
Mode |
Pitch Pb |
Tooth height ht |
Belt thickness hs |
HTD |
3M |
3 |
1.17 |
2.4 |
5M |
5 |
2.06 |
3.8 |
8M |
8 |
3.36 |
6.00 |
14M |
14 |
6.02 |
10.00 |
20M |
20 |
8.4 |
13.20 |
STPD/STS |
S2M |
2 |
0.76 |
1.36 |
S3M |
3 |
1.14 |
1.9 |
S4.5M |
4.5 |
1.71 |
2.81 |
S5M |
5 |
1.91 |
3.4 |
S8M |
8 |
3.05 |
5.3 |
S14M |
14 |
5.3 |
10.2 |
RPP/HPPD |
P2M |
2 |
0.76 |
1.36 |
P3M |
3 |
1.15 |
1.9 |
P5M |
5 |
1.95 |
3.5 |
P8M |
8 |
3.2 |
5.5 |
P14M |
14 |
6.00 |
10 |