KELVIN® Super Economy Gear Set A set of four different-sized gears (ranging from 12-, 20-, 30-, and 40-teeth) with holes to attach to each other with screws. Small gear fits toy motor shafts. New durable plastic material. Black, Set of 4. Will work with these gears: 390622, 390626,... MSRP: Was: Now: $1.25 Add to Cart
KELVIN® Super Economy Gear Set, Green A set of [4] different-sized gears (ranging from 12-, 20-, 30-, and 40-teeth) with holes to attach to each other with screws. The large gear measures 1-5/8 in. dia. The small gear fits 2mm motor shafts. Other gears fit 3mm shaft. Durable plastic. Green... MSRP: Was: Now: $1.45 Add to Cart
15 mm dia. Gear Pack Fits 1/8 in. or 3mm diameter axle. 15mm, 13-tooth. 10/pkg. Will work with these gears: 390622, 390626, 390585, 390634, 390635, 390636, 750112, 990174, and 990179. MSRP: Was: Now: $3.95 Add to Cart
20 mm dia. Gear Pack 20 mm dia., 18-tooth pulley fits 1/8 in. or 3mm diameter axle. 10/pkg. Will work with these gears: 390622, 390626, 390585, 390633, 390635, 390636, 750112, 990174, and 990179. MSRP: Was: Now: $3.95 Add to Cart
40 mm dia. Gear Pack 40 mm dia., 38-tooth pulley fits its 1/8 in. or 3mm diameter axle. 10/pkg. Will work with these gears: 390622, 390626, 390585, 390633, 390634, 390636, 750112, 990174, and 990179. MSRP: Was: Now: $4.45 Add to Cart
60 mm dia. Gear Pack 60 mm dia., 58-tooth pulley fits 1/8 in. or 3mm diameter axle. 10/pkg. Will work with these gears: 390622, 390626, 390585, 390633, 390634, 390635, 750112, 990174, and 990179. MSRP: Was: Now: $5.95 Add to Cart
Advanced Gear Set Use the Gears to Count Movement with Sensors! Evenly spaced holes near the edge, which can be used with a slotted optocoupler to measure velocity, acceleration or distance of the gear or vehicle. Holes can also be used to attach the gear to a wheel,... MSRP: Was: Now: $2.45 Add to Cart
Slotted Opticoupler For use with the Advanced Gear Set (391128). Can be used with your circuit to measure the gear rotation speed. 5V DC. MSRP: Was: Now: $3.95 Add to Cart
Deluxe Gear Set Deluxe assortment of gears for power transmission. Small gear and worm gears fit a toy motor. The Deluxe Gear Set Includes: [4] 10-Tooth Gears [4] 20-Tooth Gears [4] 30-Tooth Gears [4] 40-Tooth Gears [4] 50-Tooth Gears [2] 1/4 in. dia. Rack and Pinion... MSRP: Was: Now: $49.95 Add to Cart
Gear & Pulley Combo SPECIAL OVERSTOCK SALE! NOW $1.95 12-tooth gear with built-in pulley. Push-fits toy motor shafts and most gears. 20/pkg. Will work with these gears: 390622, 390626, 390633, 390634, 390635, 390636, 750112, 990174, and 990179. Shown with motor (not... MSRP: Was: $3.95 Now: $1.95 Add to Cart
Beveled Gears 20mm diameter gears with beveled edges. Fits 1/8 in. or 3mm diameter shaft. 10/pkg. Will work with these gears: 390626, 390585, 390633, 390634, 390635, 390636, 750112, 990174, and 990179. MSRP: Was: Now: $11.95 Add to Cart
KELVIN® Kre8® Bevel Gears 20-Teeth. 0.79 in. (20 mm) Dia. with 0.16 in. (4 mm) Dia. hole. 20/pkg. MSRP: Was: Now: $12.95 Add to Cart
KELVIN® Kre8® Bevel Gears Bulk Pack 20-Teeth. 0.79 in. (20 mm) Dia. with 0.16 in. (4 mm) Dia. hole. 100/pkg. MSRP: Was: Now: $49.95 Add to Cart
Motor Pinion Gear, 2mm Fits 2mm dia. shaft, 10-tooth. 10/pkg. Will work with these gears: 390627, 390629, and 390632. MSRP: Was: Now: $2.50 Add to Cart
KELVIN® Worm Gear This versatile worm gear can be used for a variety of projects. It features two hole sizes. One side fits a 2mm motor shaft. The other side fits a 1/8 in. axle. Black. 10/pkg.Does not include motor and gear assembly shown.Works with 841219. MSRP: Was: Now: $9.95 Add to Cart
Gear Racks 50mm Long. 10/pkg. Will work with these gears: 390622, 390585, 390633, 390634, 390635, 390636, 750112, 990174, and 990179. MSRP: Was: Now: $8.25 Add to Cart
3/16 in. dia. Gear Adapter/Reducer Place in gear hole so gear will fit toy motor shaft. 1/8 in. (4mm) to Motor Shaft (2mm). 10/pkg. Will work with these gears: 390623, 390627, and 390632. MSRP: Was: Now: $2.45 Add to Cart
1/8 in. dia. Gear Adapter/Reducer Place in gear hole so gear will fit toy motor shaft. 1/8 in. (3mm) to Motor Shaft (2mm). 10/pkg. Will work with these gears: 390623, 390627, and 390629. MSRP: Was: Now: $2.45 Add to Cart
Cams Set A set of four cams: one eccentric, one regular and two sizes of pear cams. MSRP: Was: Now: $3.95 Add to Cart
