Terex
Solar gear for Terex HC230
This solar gear is a central component of the planetary gear system, designed for power transmission in the Terex HC230 crane.
Parts diagram
Compatible models
Specifications
- Part number
- 0669 779 08
- Brand
- Terex
The solar gear, identified by part number 0669 779 08, serves as the central element within the planetary gear assembly of the Terex HC230 crane. Positioned at the core of the gear set, it is surrounded by planetary gears that are contained within an outer ring gear. This configuration is engineered to facilitate significant speed reduction and torque multiplication within a confined space, which is necessary for the mechanical demands of heavy-duty lifting equipment.
In operation, the solar gear receives input power and distributes it to the surrounding planetary gears, which then transmit the motion to the output stage. This component is specifically designed for the Terex HC230 model. The actual manufacturer for this part is Terex.
In a planetary gear system, the solar gear acts as the primary driver. By meshing with the planetary gears, it allows for various gear ratios depending on which component is held stationary or driven. This arrangement is widely used in heavy machinery transmissions and winch drives to manage high torque loads efficiently while maintaining a compact footprint within the drive assembly.

