| Type of Timer Belt Pulley
Drives, Different pitch and tooth configurations,
as follows. |
| |
The conventional Trapezodial invloute tooth configuration
in INCH PITCH as per ISD-DIN 5294-1979 and also BRITISH
STANDARD 4558-1970 namely, |
 |
| MXL |
0.08 |
Inch |
|
L |
0.375 |
Inch |
|
XH |
0.875 |
Inch |
|
| XL |
0.200 |
Inch |
|
H |
0.500 |
Inch |
|
XXH |
1.250 |
Inch |
|
|
| |
The conventional Trapezonial involute tooth configuration
in METRO PITCH as per ISO-DIN 7721-1979 namely, |
|
| T2.5 |
3.00 |
mm |
|
T
10 |
10.00 |
mm |
|
AT
5 |
5.00 |
mm |
|
| T5 |
5.00 |
mm |
|
T
20 |
20.00 |
mm |
|
AT
10 |
10.00 |
mm |
|
| |
|
|
|
|
|
|
|
AT
20 |
20.00 |
mm |
|
|
| |
In Year 1980 and onwards timer belt drives came
with new tooth configuration namely Semi-Circular
tooth profile in METRIC PITCH as under, |
|
| 3M |
3.00 |
mm |
(HTD) |
8M |
8.00 |
mm |
(HTD) |
20M |
20.00 |
mm |
(HTD) |
| 5M |
5.00 |
mm |
(HTD) |
14M |
14.00 |
mm |
(HTD) |
|
|
|
|
|
| |
In Year 1991 and onwards timer belt drives came
with further modify tooth configuration Parabolic
profile in METRIC PITCH as under, |
|
| 5M |
5.00 |
mm |
(GT) |
14M |
14.00 |
mm |
(GT) |
|
|
|
|
| 8M |
8.00 |
mm |
(GT) |
20M |
20.00 |
mm |
(GT) |
|
|
|
|
|
| |
Super Torque Positive Drive is a relatively new
concept, but similar to other Parabolic profile with
small changes in geometry of profile in METRIC PITCH
as under, |
|
| S
3M |
3.00 |
mm |
(STD) |
S
3M |
8.00 |
mm |
(STD) |
|
|
|
|
| S
5M |
5.00 |
mm |
(STD) |
S14M |
14.00 |
mm |
(STD) |
|
|
|
|
|
| |
Timing belt pulleys are manufactured from Aluminium,
Steel and other alloyes bar/rod and graded cast iron
castings as recommended by designer. For light duty
applications pulleys are moulded in non-Metalic.i.e.
from high graded engineering plastic material Polycarbonate,
Acetal with or without metal insurts. Pulleys are
manufactured as recommended pitch from various pitch
mention above and number of tooth desired to maintain
speed ration of drive and driven |
