Typically, however, the ratios are not used to design a level of torque; they are
used to create a saw with the optimum blade speed (blade Shaft RPM) for you.
The major factors are:
∙diameter of blade(s) you commonly use, and
∙cutting conditions you work under
The 4 gear ratios we have designed into the
1st Gear | 1.00 | : 1 | |
2nd Gear | 1.34 | : 1 | |
3rd Gear | 1.70 | : | 1 |
4th Gear | 2.02 | : | 1 |
In addition to the four” fixed” ratios of the Blade Shaft gears, we can also tailor
the Blade Shaft RPM (blade speed) by adjusting the “primary” ratio between the
engine and the Blade Shaft. By selecting a Blade Shaft sheave and Engine sheave,
a multitude of additional ratios (and Blade Shaft speeds) are possible. The
following Sheave sets are available as standard kits:
Engine | Blade Shaft | Ratio | Blade Shaft RPM | Engine |
| |
Sheave | Sheave | RPM | Kit # | |||
|
| |||||
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|
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| |
|
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|
|
|
| |
|
|
| 2333 in 1st |
|
| |
5.1 | 6.0 | 1.17 : 1 | 1741 in 2nd | 2800 | 18609 | |
1372 in 3rd | ||||||
|
|
|
|
| ||
|
|
| 1154 in 4th |
|
| |
|
|
|
|
|
| |
|
|
| 2700 in 1st |
|
| |
5.4 | 5.6 | 1.03 : 1 | 2000 in 2nd | 2800 | 18611 | |
1588 in 3rd | ||||||
|
|
|
|
| ||
|
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| 1350 in 4th |
|
| |
|
|
|
|
|
| |
|
|
| 3373 in 1st |
|
| |
6.0 | 5.0 | .83 : 1 | 2498 in 2nd | 2800 | 18612 | |
1984 in 3rd | ||||||
|
|
|
|
| ||
|
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| 1686 in 4th |
|
| |
|
|
|
|
|
|
21
