Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]

Technic Gear 8 Tooth [Reinforced]

Technic Gear 8 Tooth No Friction

Technic Worm Gear 3L with Bush Ends

Technic Turntable Large Type 3 Top, 60 Tooth

Technic Turntable Large Type 3 Base

Technic Gear Rack 1 x 14 x 2 Housing