| Image | Item No. | Description | By |
| 24014 | Technic, Arm with Gear 8 Tooth and 1.5L Axle
Catalog: Parts: Technic, Gear | 1 |
| 3647 | Technic, Gear 8 Tooth
Catalog: Parts: Technic, Gear | 398 |
| 10928 | Technic, Gear 8 Tooth with Dual Face
Catalog: Parts: Technic, Gear | 8 |
| 11955 | Technic, Gear 8 Tooth with Dual Face without Friction
Catalog: Parts: Technic, Gear | 3 |
| 69778 | Technic, Gear 12 Tooth
Catalog: Parts: Technic, Gear | 1 |
| 6589 | Technic, Gear 12 Tooth Bevel
Catalog: Parts: Technic, Gear | 960 |
| 32270 | Technic, Gear 12 Tooth Double Bevel
Catalog: Parts: Technic, Gear | 54 |
| 69762 | Technic, Gear 14 Tooth Bevel Thick
Catalog: Parts: Technic, Gear | 1253 |
| 4143 | Technic, Gear 14 Tooth Bevel Thin
Catalog: Parts: Technic, Gear | 3 |
| 94925 | Technic, Gear 16 Tooth - Axle Hole with Closed Sides
Catalog: Parts: Technic, Gear | 36 |
| 4019 | Technic, Gear 16 Tooth - Axle Hole with Open Sides
Catalog: Parts: Technic, Gear | 11 |
| 6542 | Technic, Gear 16 Tooth with Clutch
Catalog: Parts: Technic, Gear | 2 |
| 18946 | Technic, Gear 16 Tooth with Clutch on Both Sides
Catalog: Parts: Technic, Gear | 7 |
| 6542b | Technic, Gear 16 Tooth with Clutch, Smooth
Catalog: Parts: Technic, Gear | 1 |
| 32198 | Technic, Gear 20 Tooth Bevel
Catalog: Parts: Technic, Gear | 23 |
| 87407 | Technic, Gear 20 Tooth Bevel with Pin Hole
Catalog: Parts: Technic, Gear | 4 |
| 32269 | Technic, Gear 20 Tooth Double Bevel
Catalog: Parts: Technic, Gear | 48 |
| 69761 | Technic, Gear 22 Tooth Bevel
Catalog: Parts: Technic, Gear | 1221 |
| 60c01 | Technic, Gear 24 Tooth Clutch
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 | 368 |
| x187 | Technic, Gear 24 Tooth with 3 Axle Holes
Catalog: Parts: Technic, Gear | 1 |
| 46372 | Technic, Gear 28 Tooth Double Bevel
Catalog: Parts: Technic, Gear | 54 |
| 32498 | Technic, Gear 36 Tooth Double Bevel
Catalog: Parts: Technic, Gear | 23 |
| 3649 | Technic, Gear 40 Tooth
Catalog: Parts: Technic, Gear | 11 |
| 62821b | Technic, Gear Differential 28 Tooth Bevel - Inner Tabs with Closed Center
Catalog: Parts: Technic, Gear | 2 |
| g21 | Technic, Gear Expert Builder 21 Tooth with Axle Hole
Catalog: Parts: Technic, Gear | 188 |
| 3743 | Technic, Gear Rack 1 x 4
Catalog: Parts: Technic, Gear | 33 |
| 87761 | Technic, Gear Rack 1 x 7 with Axle and Pin Holes
Catalog: Parts: Technic, Gear | 2 |
| 64781 | Technic, Gear Rack 1 x 13 with Axle and Pin Holes
Catalog: Parts: Technic, Gear | 4 |
| 18940 | Technic, Gear Rack 1 x 14 x 2 Housing
Catalog: Parts: Technic, Gear | 301 |
| 18942 | Technic, Gear Rack 1 x 14 x 2 with Axle and Pin Holes
Catalog: Parts: Technic, Gear | 3 |
| 24121 | Technic, Gear Rack 11 x 11 Curved
Catalog: Parts: Technic, Gear | 2932 |
| 24121pb001L | Technic, Gear Rack 11 x 11 Curved with Crushing Hazard Danger Sign and Red and White Danger Stripes Pattern Model Left Side (Stickers) - Set 42055
Catalog: Parts: Technic, Gear | 33 |
| 24121pb001R | Technic, Gear Rack 11 x 11 Curved with Crushing Hazard Danger Sign and Red and White Danger Stripes Pattern Model Right Side (Stickers) - Set 42055
Catalog: Parts: Technic, Gear | 28 |
| 2474 | Technic, Gear Ratchet 8 Tooth
Catalog: Parts: Technic, Gear | 154 |
| 741 | Technic, Gear Samsonite 14 Tooth
Catalog: Parts: Technic, Gear | 3 |
| 742 | Technic, Gear Samsonite 21 Tooth
Catalog: Parts: Technic, Gear | 100 |
| 15457 | Technic, Gear Worm Screw with 2 Bushes
Catalog: Parts: Technic, Gear | 2 |
| 4716 | Technic, Gear Worm Screw, Long
Catalog: Parts: Technic, Gear | 633 |
| 32905 | Technic, Gear Worm Screw, Long, Axle Opening Type II
Catalog: Parts: Technic, Gear | 6 |
| 27938 | Technic, Gear Worm Screw, Short
Catalog: Parts: Technic, Gear | 1 |
| 6588 | Technic, Gearbox 2 x 4 x 3 1/3
Catalog: Parts: Technic, Gear | 326 |
| 6585 | Technic, Gearbox 4 x 4 x 1 2/3
Catalog: Parts: Technic, Gear | 121 |
| 32166 | Technic, Gearbox Half
Catalog: Parts: Technic, Gear | 168 |