KonHaovF 116PCS Gear and Axle Set for Technic Parts Compatible with Lego Technic Parts, DIY Gears Assortment Pack((Gears Pins Axles Differential New)) for Technic Building Blocks Set(Random Color)
LEGO Design
Todd E Toys LLC LEGO 50pc Technic gear & axle SET #2
LEGO Technic Gear shifter ring kit (axles and gears) 15 pieces – TopToy
Bricks and Gears 10712 | Classic | Buy online at the Official LEGO® Shop US
DC Gearbox TT Motor to LEGO® compatible Cross Axle : ID 3810 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits