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Asked by: Duaa Morengeim
home and garden home appliancesWhat is hydrostatic transmission on a riding mower?
Lawn mowers with hydrostatic transmissions allow you to mow through a wide range of speeds, instead of operating with preset gear speeds. Hydrostatic lawn mower transmissions combine a hydraulic pump with a hydraulic motor to power the machine.
Consequently, what is the difference between automatic and hydrostatic transmission?
The biggest difference between the two is that you've got pistons creating the hydraulic flow in a hydrostatic application, while automatic transmissions use a torque converter. Automatic Transmissions are progressive speed transmissions that are controlled by a torque converter.
| TUFF TORQ TRANSMISSIONS | K46 | K58 |
|---|---|---|
| User Level: | Residential | Residential to Semi-Pro |
| Type of Mower: | Lawn Tractors (standard) | Lawn Tractors Garden Tractors (small) |
| Gear Reduction Ratios: | 28.04:1 21.53:1 | 31.44:1 |
| Axle Torque | 28.04:1 = 171 lb-ft 21.53:1 = 131 lb-ft | 217 lb-ft |
Additionally, what is a hydrostatic transmission?
A hydrostatic transmission (HST) exists any time a hydraulic pump is connected to and dedicated to one or more hydraulic motors. These transmissions produce a speed-torque characteristic that is hyperbolic, and they are used primarily to prevent lugging of the prime mover.
This is because the drive motor turns with the wheels, but the pump does not. It's obvious that the advantages of a hydrostatic transmission far outnumber its problems. This is why it is regarded as an excellent means of power transmission, especially when a variable output speed is required.