SP-56/66 GEAR ASSAMBLY INGCO (RH150028) D-19

🧰 What It Is

The gear assembly referred to by SP‑56/66 is a pre‑assembled set of internal gears that work together as a unit within the RH150028’s transmission. Rather than separate individual gears, this assembly typically includes:

• The small gear (SP‑56)

• A matched gear (SP‑66, often a mating gear or larger companion gear)

• Spacers, pins, bearings or bushes needed for correct alignment

• This combined set is supplied as a single assembly for easier replacement and precise fit

In a gear assembly, the parts are aligned, meshed, and supported so that they function as a cohesive unit to transfer power smoothly through the tool’s internal drive train.

⚙️ Technical Function

This gear assembly plays several key mechanical roles:

1. Power Transmission

• It transfers rotation from the motor armature or a primary drive component into the gear train that drives the hammer and drill mechanism.

2. Speed/Torque Conversion

• By meshing a small gear (faster, fewer teeth) with a larger gear (slower, more torque), the assembly alters the speed and torque to suit the hammering and drilling functions.

3. Direction and Motion Transfer

• It changes the direction of rotation and routes power to the next stage of the mechanism, such as the cam, slider, or piston drive link.

4. Mechanical Synchronization

• Ensures that multiple moving parts remain coordinated so the hammer action and rotary action occur in the correct phase and sequence.