A40 – 40 HP
The A40 gearbox is designed for use on rotary slashers and other equipment up to 40HP.
Features:
– Sturdy construction.
– Improved o/p shaft seal protection ring.
– Output shaft boss for attaching the cutter head. (Welding required.)
NOTE: GEARBOXES ARE SHIPPED WITHOUT OIL. Please fill before use.
PRODUCT SPECS & PHOTOS
| SPECIFICATIONS | |
| Part No | Description |
| AL00911 | L Box Similar rotation. |
| AL00912 | L Box Opposite rotation. |
| AL00913 | T Box Thru shaft. |
| Gear Ratio | 1:1.93 Increasing |
| Input speed | 540 RPM |
| Weight | 21.7 Kg Aprox |
| Lubricant | SAE EP 90 Gear Oil. 1.2lt Aprox Gearboxes are shipped without oil. Please fill before use. |
Right angled L Box.
Click on drawing to enlarge.
T style thru box AL00913 shown below.
Rotary Cutter speeds
Normal agricultural input shaft speed is 540 RPM. Care must be taken when selecting a gear box for your application. If the blades rotate too slowly they may not cut properly. If the blades rotate too fast you may also experience cutting problems however excessive speed is more likely to cause damage to the machine or serious injury to the operator.
The chart below shows the tip speed in feet per minute for some commonly used cutter blade diameters. This is a guide only to assist you with the selection of your gearbox.| BLADE DIAMETER | TIP SPEED (Feet per minute) |
| 3’6″ | 11,479 |
| 4′ | 13,119 |
| 4’6″ | 14,759 |