Spiral Bevel Gear And Pinion Set

This is a spiral bevel gear and pinion set, a replacement part specifically designed for large angle grinders. [1, 2] Product Details Purpose: These gears transfer rotational power from the motor (armature) to the spindle that holds the grinding wheel, allowing it to spin at high speeds. [1, 2] Compatibility: The box indicates this set is suitable for the Makita GA7020 angle grinder. It may also fit related 180mm (7") or 230mm (9") models like the GA7020S, GA7030, or GA9020. [1, 2, 3, 4] Components: Main Gear (Ring Gear): The large disc shown in the foreground. Pinion Gear: The smaller, cone-shaped gear shown on the box (and likely included in the kit) that meshes with the larger gear. [1, 2, 3] Design: The "spiral" teeth are curved to provide smoother and quieter operation under heavy loads compared to straight-cut gears. [1, 2]