19pcs White Plastic Assorted Gear Kits Double Speed DIY Wheels Gear Reducer Engine Parts

Description: 19pcs White plastic assorted gear kit / double speed DIY wheels gear reducer engine parts fit for DIY toy robot parts. Specification: Material: Plastic Direction: Right hand Tooth profile: Conical gear Shape: Ring speed Module: 0.5, total 19 species. Thickness: 4-5mm Calculation Speed Formula Diameter: (Number + 2) X 0.5 (MM) Double Deck Reduction Gear Model External Tooth Number Internal Tooth Number Hole diameter (mm) Loose/Tight Diameter (mm) 16102B 16 10 2.05 Loose 9 18102A 18 10 1.95 Tight 10 20082B 20 8 2.05 Loose 11 20102B 20 10 2.05 Loose 11 22082A 22 8 1.95 Tight 12 22102B 22 10 2. 05 Loose 12 24102B 24 10 2.05 Loose 13 24122B 24 12 2.05 Loose 13 26082B 26 8 2.05 Loose 14 28102B 28 10 2.05 Loose 15 30122B 30 12 2.05 Loose 16 30162A 30 16.00 1.95 Tight 16 32082B 32 8.00 2.05 Loose 17 34102B 34 10.00 2.05 Loose 18 38082B 38 8.00 2.05 Loose 20 40102B 40 10.00 2.05 Loose 21 46082A 46 8.00 1.95 Tight 24 48102B 48 10.00 2.05 Loose 25 50102A 50 10.00 1.95 Tight 26 Model rating: 1 The first two digits of the code: the number of teeth outside the speed 2. Coding three or four digits: the number of teeth in the speed 3. Coding the fifth digit: the size of the opening of the speed 4 Code for the final English: One: hermetic B: weakly coupled 2A center axis is 1.95mm; With 2mm optical axis, compact and rotate with the optical axis. the center axis of 2B is 2.05mm; With a 2mm light axis, weakly coupled, free to rotate on the optical axis. for example: 16102B size: the axle of 10 holes in the outside teeth with 10 opening 2MM. Speed diameter: (16 + 2) X 0.5 (MM) = 9MM speed diameter of 9MM. Features: - Made of good quality plastic, wearable and long service life. - These products are for toys gear pulley and other spare parts, suitable for DIY model technology production. - There are19pcs for your option including many kinds of gear parts and you can find one that better meet your need. - The hole is loose and tight, you can refer to my table. - Small parts, easy to use, great model making accessories for all kinds of cars, robots, etc. - They are also good replacement of old or broken parts. Package Included: 1 x Gear kit More Details: