4.
SYNCHRONOUS PULLEY
 |
|
|
|
| Dimension
&tolerance of linear type pulley(mm)
|
 |
Type
|
bw
|
hg
|
Y+1.5
|
Rb
|
rt
|
2a
|
MX
|
0.84±0.05
|
0.69
|
20
|
0.35
|
0.13
|
0.508
|
XXL
|
1.14±0.05
|
0.84
|
25
|
0.35
|
0.30
|
0.508
|
XL
|
1.32±0.05
|
1.65
|
25
|
0.41
|
0.64
|
0.508
|
L
|
3.05±0.10
|
2.67
|
20
|
1.19
|
1.17
|
0.762
|
H
|
4.19±0.13
|
3.05
|
20
|
1.60
|
1.6
|
1.372
|
XH
|
7.90±0.15
|
7.14
|
20
|
1.98
|
2.39
|
2.794
|
XXH
|
12.17±0.18
|
10.31
|
20
|
3.96
|
3.18
|
3.048
|
|
| Dimension
of HTD type pulley(mm)
|
 |
Type
|
pitch
|
Tooth height
|
Root circle radius
|
Groove width
|
Top circle radius
|
Angle
|
3M
|
3
|
1.28
|
0.91
|
1.90
|
0.3
|
14
|
5M
|
5
|
2.16
|
1.56
|
3.25
|
0.48
|
14
|
8M
|
8
|
3.54
|
2.57
|
5.35
|
0.8
|
14
|
14M
|
14
|
6.20
|
4.65
|
9.80
|
1.4
|
14
|
|
| Dimension
of T type pulley(mm)
|
 |
Type |
Shape |
Shape |
Y Grade |
rt |
rb |
2a |
Se br<20 |
N br>20 |
SE hg<20 |
N hg>20 |
|
|
tolerance |
|
tolerance |
|
tolerance |
mix |
±1.5 |
max |
|
tolerance |
|
T2.5 |
1.75 |
+0.05 |
1.83 |
+0.05 |
0.75 |
+0.05 |
1 |
25 |
0.2 |
0.3 |
+0.05 |
0.6 |
T5 |
2.96 |
+0.05 |
3.32 |
+0.05 |
1.25 |
+0.05 |
1.95 |
25 |
0.4 |
0.6 |
+0.05 |
0.85 |
T10 |
6.02 |
+0.1 |
6.57 |
+0.1 |
2.6 |
+0.1 |
3.4 |
25 |
0.6 |
0.8 |
+0.1 |
1.85 |
T20 |
11.65 |
+0.15 |
12.6 |
+0.15 |
5.2 |
+0.15 |
6 |
25 |
0.8 |
1.2 |
+0.15 |
2.83 |
|
| Dimensions of STPD/STS type PULLEY(MM)
|
 |
Type
|
Pitch
|
Tooth Height
|
Root circle Radius
|
Groove Width
|
2a
|
S2M
|
2
|
0.76
|
1.325
|
1.30
|
0.508
|
S3M
|
3
|
1.11
|
1.975
|
1.95
|
0.762
|
S4.5M
|
4.5
|
1.59
|
2.98
|
2.93
|
0.762
|
S5M
|
5
|
1.89
|
3.275
|
3.25
|
0.96
|
S8M
|
8
|
2.83
|
5.30
|
5.20
|
1.372
|
S14M
|
14
|
4.95
|
9.28
|
9.10
|
2.794
|
|
| Pitch tolerance(mm)
|
Out side diameter pitch
|
Tolerance
|
Any two adjacent teeth
|
90 arc
|
<25.4
|
0.03
|
0.05
|
>25.4-50.8
|
0.03
|
0.08
|
>50.8-101.6
|
0.03
|
0.1
|
>101.6-117.8
|
0.03
|
0.13
|
>117.8-304.8
|
0.03
|
0.15
|
>304.8-508.00
|
0.03
|
0.18
|
>508
|
0.03
|
0.2
|
|
Pitch tolerance(mm)
Out side diameter pitch
|
Tolerance
|
Any two adjacent teeth
|
90 arc
|
<25.4
|
0.03
|
0.05
|
>25.4-50.8
|
0.03
|
0.08
|
>50.8-101.6
|
0.03
|
0.1
|
>101.6-117.8
|
0.03
|
0.13
|
>117.8-304.8
|
0.03
|
0.15
|
>304.8-508.00
|
0.03
|
| |
