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Teradek RT Lens Motor Gear

Lens gearing is not standard across the industry, and a motor gear that is one module out will skip under load in the middle of a pull. Teradek cuts these gears on a hobbing machine for every RT motor, so the tooth profile meshes cleanly rather than riding on the tips.

Cine glass from ARRI, Zeiss and Sony is almost always 0.8 mod, and the 12 mm wide version of that gear is the one for a broad focus ring or a lens with a lot of side play. Panavision and Canon C-mount take 0.4, Canon and Angenieux ENG take 0.5, and Fujinon ENG takes 0.6.

TypeLens motor gear
Compatible WithThe Teradek RT lens control system
Versions0.8 mod, for cine, ARRI, Zeiss, 32 pitch and Sony; 0.8 mod wide, 12 mm, for cine, ARRI, Zeiss, 32 pitch and Sony; 0.4 mod, for Panavision and Canon C-mount; 0.5 mod, for Canon and Angenieux ENG; 0.6 mod, for Fujinon ENG; Motor Gears for MOTR.S/MAX (Individual) - Thick Gear - 0.8 Mod, 50 Teeth, 12mm Width; Motor Gears for MOTR.S/MAX (Individual) - Standard Gear - 0.8 Mod, 50 Teeth, 7mm Width; Motor Gears for MOTR.S/MAX (Individual) - Large - 0.8 Mod, 80 Teeth, 6mm Width
Sold As8 stocked versions, ordered individually
Teradek Part #11-1423, 11-1424, 11-1420, 11-1421, 11-1422, 11-0939, 11-0940, 11-0941
ManufacturerTeradek (Creative Solutions / Videndum)