Image Item No. Description By  10928  Technic, Gear 8 Tooth with Dual Face Catalog: Parts: Technic, Gear 1  69778  Technic, Gear 12 Tooth Catalog: Parts: Technic, Gear 1  6589  Technic, Gear 12 Tooth Bevel Catalog: Parts: Technic, Gear 12  32270  Technic, Gear 12 Tooth Double Bevel Catalog: Parts: Technic, Gear 1  94925  Technic, Gear 16 Tooth - Axle Hole with Closed Sides Catalog: Parts: Technic, Gear 3  32198  Technic, Gear 20 Tooth Bevel Catalog: Parts: Technic, Gear 3  32269  Technic, Gear 20 Tooth Double Bevel Catalog: Parts: Technic, Gear 5  35185  Technic, Gear 20 Tooth Double Bevel with Clutch on Both Sides Catalog: Parts: Technic, Gear 1  3650b  Technic, Gear 24 Tooth Crown - Reinforced Catalog: Parts: Technic, Gear 1  3648  Technic, Gear 24 Tooth with 1 Axle Hole Catalog: Parts: Technic, Gear 3  32498  Technic, Gear 36 Tooth Double Bevel Catalog: Parts: Technic, Gear 1  3649  Technic, Gear 40 Tooth Catalog: Parts: Technic, Gear 2  3743  Technic, Gear Rack 1 x 4 Catalog: Parts: Technic, Gear 2  18942  Technic, Gear Rack 1 x 14 x 2 with Axle and Pin Holes Catalog: Parts: Technic, Gear 1  4716  Technic, Gear Worm Screw, Long Catalog: Parts: Technic, Gear 1  32905  Technic, Gear Worm Screw, Long, Axle Opening Type II Catalog: Parts: Technic, Gear 1