Type: The Yanmar B27-2 uses a two-speed travel final drive with a planetary gear system
The planetary gear system is a highly efficient design that provides high torque and low rotational speed, making it ideal for excavator applications.
Ratio: The final drive ratio determines the speed of the tracks relative to the speed of the hydraulic motor. The Yanmar B27-2 has a final drive ratio of 33:1, which means that for every 33 rotations of the hydraulic motor, the tracks will rotate once.
Motor size: The motor size is another critical factor that determines the performance of the final drive. The Yanmar B27-2 uses a hydraulic motor with a displacement of 30.4 cc/rev. This motor size provides sufficient power to drive the tracks and perform various excavating tasks.
Torque: The torque rating of the final drive is an essential specification to consider when selecting a final drive for an excavator. The Yanmar B27-2 final drive has a maximum output torque of 4,828 Nm, which is sufficient to move the excavator over various terrains and perform digging tasks.
Weight: The weight of the final drive is another critical specification to consider. The Yanmar B27-2 final drive weighs approximately 62 kg, which is lightweight enough to prevent excessive strain on the excavator's powertrain while still providing sufficient durability and strength.
Oil capacity: The final drive requires adequate lubrication to prevent wear and tear and extend its lifespan
The Yanmar B27-2 final drive has an oil capacity of approximately 1.2 liters, which is sufficient to provide adequate lubrication and prevent overheating.
Compatibility: The Yanmar B27-2 final drive is compatible with other components of the excavator's powertrain, including the hydraulic pump, hydraulic hoses, and the track assembly. It is also compatible with other Yanmar B-series excavators, making it easy to replace or upgrade if needed.