Product Name: Brass Worm and Nylon Worm Gear Model NO.: M1308-PCZZ-32 Type: Worm and Wormwheel Reference Surface: Toroidal Surface Head: Single Head Spiral Line: Right-Handed Rotation Application: Conveyer Equipment, Toy Standard or Nonstandard: Nonstandard Transmission Ratio: 1:30 Hardness: Hardened Manufacturing Method: Cut Gear Toothed Portion Shape: Curved Gear Material: Albronze Trademark: None Transport Package: Carton Origin: China Product Description Parameters:1, Worm -Material: H85, HAl60-1-1, ZCuZn26Al4Fe3Mn3, Brass & Aluminum Brass - Module=1, - Pressure Angle=20° -Lead Angle=3.58°2, Worm Gear - Material: Nylon 66 - Module =1 - pressure angle=20° - lead angle=3.58° - Tooth=30Application fields