Technic Gears

Brick Round 2 x 2 with Axle Hole

Black· 3941

Technic Driving Ring 2L, 4 Ridges

Red· 6539

Technic Gear 12 Tooth Bevel

Tan· 6589

Technic Gear 16 Tooth Reinforced [New Style]

Light Bluish Gray· 94925

Technic Gear 16 Tooth with Clutch [Smooth]

Dark Bluish Gray· 6542b

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

Tan· 18575

Technic Gear 24 Tooth [New Style with Single Axle Hole]

Dark Bluish Gray· 3648b

Technic Gear 36 Tooth Double Bevel

Black· 32498

Technic Gear 40 Tooth

Light Bluish Gray· 3649

Technic Gear Differential, 24 -16 Tooth with Clutch on Both Sides

Dark Bluish Gray· 6573

Technic Cam

Dark Bluish Gray· 6575

Technic Changeover Catch - + opening

Red· 6641

Technic Wedge Belt Wheel [aka Pulley]

Light Bluish Gray· 4185