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Best Choice アベイル(Avail) 
Avail Aluminum Worm Shaft for WS-15C-2BB 1500C, Chrome Model Name: WS-15C-2BB (Ball Bearing Model Warm Shaft for 1500C)uxcell 
uxcell Plastic RC Model Motor Shaft Slow Down Worm Gear 2mm x 6mm x 8mm 50pcs Product Name : Plastic Worm Gear;Fit for : for DIY Motor Reduction BoxBest Value MTD 
MTD Replacement Part Worm Shaft This is an O.E.M. authorized partF Fityle 
F Fityle 0.5 Module 40T Steel Worm Wheel + Brass Shaft Drive Gear Transmission Shaft High quality material selection, carefully processing create high quality product.NeaxgeandX 
Brass Worm Gear Wheel Worm Gear Shaft Kits 0.5 Modulus Hole 3mm Dia 6.7mm Worm Shaft Z1=1, turn a round of worm gear teeth, can get a large transmission ratio, generally in the power transmissioJersvimc 
Jersvimc 12V 10RPM High Torque DC Motor, Mini JGY 370 Motor Worm Gear Motor Small Electric Motor Low RPM Reducer Motor M 1️⃣[ What You Get ]: 1 x 12RPM dc motor, the rated voltage is 12 V. The size of a small motor with high torque and low swosume 
Reversible Worm Gear Motor, 8mm Shaft Speed Reduce Motor 12V Speed Reduce Motor, Durable Window Openers(12V, 12RPM) 27% Off Greartisan Greartisan DC 12V 15RPM Turbo Worm Geared Motor High Torque Turbine Worm Gear Box Reduction Motor 6mm Shaft JSX600-370 【ALL-METAL GEARS】: High-temperature resistance, high abrasion resistance, strong load capacity, sturdy and durable, effeHayward Hayward RCX2125 MTR Worm Shaft Coupling Replacement for Hayward Commercial Cleaner Mtr worm shaft coupling replacementMUNEFE Alloy Steel Output Single Shaft, Worm Reducer Double Output Shaft, Alloy Steel Low Noise Stepper Motor Dual Output Shaft APPLICABLE FOR MULTIPLE DEVICES: The Worm Reducer Double Output Shaft is highly versatile, designed to work seamlessly wuxcell uxcell Worm Gear Set - 0.5 Module 40:1 Reduction Rate 5mm Hole Dia Gear Shaft and 5mm Hole Dia Gear Wheel 40T Drive Gear Package Content - The set includes a 0.5 module 5MM Hole Dia brass gear shaft and a 40 Teeth brass worm gear wheel.AEspares AEspares C5NN3A710A Worm Shaft Power Steering Compatible With Ford Tractor 5000 5100 5340 7100 7200 Compatible With 5000 5100 5340 7100 7200FSNEODYV FSNEODYV Gear, Pack Of 10 0.5 Module 5x5mm Worm Rod 0.8mm Shaft 0.7mm Hole Worm Gear Turbine Shaft Motor Pinion Versatile DIY Tools: Perfect for crafting custom car models, robots, and various accessories, our gears are the essentiaJoyzan Plastic Spindle Worm Gear Sleeve, Motor Gears Toy Accessories Shaft for DIY Model Technology Small Parts Cars Sleeve Set Plastic Toy Accessories Spindle Shaft Material: plastic spindle worm motor gear set made of high quality plastic, wearabuxcell uxcell Worm Gear Set - 0.5 Module 60:1 Reduction Rate 3mm Hole Dia Gear Shaft and 6mm Hole Dia Gear Wheel 60T Drive Gear Package Content - The set includes a 0.5 module 3MM Hole Dia brass gear shaft and a 60 Teeth brass worm gear wheel.Omix-Ada Omix-Ada 18029.01 Steering Gear Box Worm Shaft Bearing Kit Complete kitBringsmart BRINGSMART 12V 12rpm DC Worm Gear Motor 70kg.cm High Torque Self-Locking Reversed Mini Turbine Geared Motor for DIY Robo Rated voltage-12V DC, No load speed-12rpm, no load current-350mA, Rated speed-9rpm, rated torque-70kg.cm, rated current-Aexit Aexit JSX330-370 (Electrical equipment) DC 3V 15RPM 6mm Shaft High Torque Turbine Worm Gear Box (21ry883qf427) Reduction Country of Manufacture: CHINA; Material: Metal; Rated Voltage: DC 3Vuxcell uxcell Worm Gear Set Wheel Shaft Brass 0.3 Modulus 30:1 Reduction Rate 4.1mm Gear Thickness Right Rotate Drive Gear Box Size - Modulus: 0.3; Outer Diameter: 3.8mm Gear Shaft, 9.5mm Gear Wheel; Inner Diameter: 0.98mm Gear Shaft, 4mm Gear WheTOPPERFUN TOPPERFUN 2pcs Teeth Copper Worm Gear Wheel with Shaft Worm and Wheel for Gear Box Compact Design Easy to Install High T Tapered Tapered Pinion - The transmission structure of the helical shaft is simple, compact, small volume and lightweighAEspares AEspares D6NN3A710A NEW Worm Shaft Power Steering Compatible With Ford 2000 3000 2600 3600 Tractor Compatible With 2000 3000 2600 3600 TractorRED DRAGON Red Dragon Nitrotech Medium Shafts - Solid Black - 3 Sets per Pack (9 shafts in Total) & Red Dragon Checkout Card Red Dragon Nitrotech black medium shaftsJNBCBCTALQ Gears Pinion Gear Set, Pinion Gear 0.3 Module Worm Gear Set 25T 35T 45T 55T 70T 80 Teeth Spur Gear Pinion 1:20 1:30 1:40 0.3 Module Worm Gear Set 25T 35T 45T 55T 70T 80 Teeth Spur Gear Pinion 1:20 1:30 1:40 1:50 1:60 Worm GearTENOL TENOL 12V DC Worm Gear Motor with Variable Speed 2RPM to 100RPM, 5RPM Gearbox output shaft and motor shaft a rectangleuxcell uxcell Double Shaft Worm Gear Motor DC 12V 5RPM High Torque Speed Reduction Motor with Metal Gearbox 1.Rated voltage: DC12V; No-load speed: 5RPM; Rated torque: 20kg.cm; Rated Current: 1090mA.Bringsmart BRINGSMART 12V 40rpm DC Worm Gear Motor 4.5kg.cm Low Speed Mini Turbine Worm Reducer Electric Machine Self-Locking DC Mo JGY-370 12V 40rpm, Rated voltage-12V DC, No load speed-40rpm,no load current-60mA,Rated speed-30rpm,rated torque-4.5kg.cGreartisan Greartisan DC 12V 250RPM 2Kg.cm 8mm Double Shafts Self-Locking Reversible Worm Gear Motor with Cable, High Torque Speed 【High Torque & Lower Noise】: Long carbon brush high life, high precision gear design, small size, high torque, low noiseGRCFUMO GRCFUMO Speed Reduction Gear Motor, Efficient Dual Output Shaft Worm Brushed Geared Motor, Mini Micro Metal Gear Motor f STABLE GEAR TRANSMISSION: The gear motor features a stable transmission system with low noise and large torsion. This deGearwell Gearwell Worm Gear Motor, 12V 160RPM Reversible Self-Locking Motor, 12mm Shaft Worm Drive Gearbox Motor for Automation U [DUAL OUTPUT SHAFTS DESIGN] The gear motor features vertical dual output shafts, providing versatility for different appANKROYU ANKROYU Worm Gear Set, Brass 28:1 Reduction Ratio Motor Internal Drive Accessories, Shaft Mechanical Gears with 28 Teeth Production Technology: Adopting advanced production technology, this product features a compact and sturdy design with iCHANCS CHANCS 3-6V Double Shaft Bevel Angle Gear Motor Suit Worm Reducer DIY Parts Electrical Equipment 3PCS *This is a two-shaft bevel gear motor, worm gear reduction, can be directly mounted on the wheel to make a DIY remote coFSNEODYV FSNEODYV Gear Reducer, Worm Gear Motor GW4632-370 Hollow Shaft High Torque Metal Low Speed Reversible 6V 12V 24V Multipl Output shaft length:18.5mm DNDNCZDHC NDNCZDHC 5840-31ZY 12V DC Geared Motor 400RPM Gear Reduction Motor 8mm Shaft Diameter Worm Gear Motor with Governor, CW Output Shaft: The motor features an 8mm stainless steel output shaft, ensuring high accuracy and smooth, silent operatinuxcell uxcell Gear Box 90 Degree Right Angle Worm Gearbox 1:10 Reduction Gearbox 1 Module 10 Teeth Worm Gear Aluminum Frame Sim Product Detail - 1:10 reduction gearbox 1 module 10 teeth with 8mm shaft,100x100x50mm(LxWxH)EATAKWARD EATAKWARD Worm Gear Kit Replacement for MTD Troy-Bilt Horse Bronze Tiller Tine Shaft Worm Gear Kit Replaces # GW-11527 1 ✅【Compatibility】: The Gear Kit Compatible with MTD Troy-Bilt.Bringsmart BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-Locking Reversed Engine Mini Turbine Geared Motor for DIY Robot Rot Rated voltage-12V DC, No load speed-40rpm, no load current-350mA, Rated speed-30rpm, rated torque-40kg.cm, rated currentOumefar Oumefar Double Shaft Worm Gear Motor, 12V Motor with Metal Gearbox Turbo Worm Speed Reduction Gear Motor M8 Thread Small PREMIUM MATERIAL: Solid outer case, selected superior material, high efficiency, energy saving and corrosion resistance.OriGlam OriGlam 100pcs 1.5inch Simulation Earthworm Fake Worm Soft Fishing Lures, Plastic Fishing Lure Soft Lures Artificial Wor √ Quality Material - Made quality material of plastic, it looks vivid and life-like, can be used for a long time.Dickly Dickly 82 Pieces Gear Package Kits, Pulley Belt Worm Kits, Crown Gear Worm Gear Shaft Belt DIY Set Toy for Robot, Motor, 【Variety of Sizes】: The gear set features different sizes for each type of gear to cater to various DIY science model maFolany Spindle Gear Plastic 26pcs Motor Gears 2MM/2.3MM/3MM Shaft for DIY Model Technology Small Parts Cars Mainly used in the coreless motors,130.140.180.260.280.370 and all 2mm motors, such as 2.3mm circular shaft motors, 3mmOKJHFD Gear Motor 12mm Single Shaft Self Locking Reversible Worm Gear Motor with Fixing Base DC24V (10RPM) [12mm Single Shaft] This DC gear motor features a single 12mm shaft, vertically arranged, suitable for various applicatiCreate idea Create idea 2PCS Brass Gear Shaft 0.5 Modulus 2.98mm Compatible with Small Motor And Change The Transmission Direction It is used to decelerate the small motor and change the transmission direction. It can be applied to small motor productRivermidfish AU 2PCS 4632-370 DC12V 3RPM Turbo Worm Geared Motor High Torque Turbine Worm Gear Box Reduction Motor 6mm Shaft 2PCS 4632-370 DC12V 3RPM Turbo Worm Geared Motor High Torque Turbine Worm Gear Box Reduction Motor 6mm ShaftTimken Timken 5BA Steering Gear Worm Shaft Bearing Precision engineeredANKROYU 12v High Torque Speed Reduction Worm Gear Motor, Turbo Reducer Gearbox, Worm Motor 8mm Shaft, Reduction Motor(12V,200RPM [High quality material]: made of high quality material, durable and long service life.Grcfumo Output Single Shaft, Stepper Motor Output Shaft, Motor Output Single Shaft for Worm Reducer Gearbox NMRV040 RV040 Nema3 SLICK TRANSMISSION WITH LOW NOISE: Experience slick and quiet operation with our output single shaft, designed for low nGearwell Double Shaft Worm Gear Motor, High Torsion Brush Speed Reduction Motor with Fixing Mount for Robots Ovens BRUSH DC MOTOR: The micro gear motor is a brush DC motor with 3 layers of high density molecular paint coating, which isJoyzan Joyzan Worm Geared Motor, Dc 12V Gear Box Motor Reversible High Torque Electric Motor Electric Drive Outer Diameter 20mm High Torque Turbo Gear Motor: The DC 12V gear box no self locking, good operation, hardness material, good toughness, imuxcell uxcell DC 3V 3RPM Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Quality Guarantee - Authentic Uxcell brand, we are the ORIGINAL, now copied by many, but they cannot match our constantJNBCBCTALQ Gears Pinion Gear Set, Pinion Gear 1pcs 0.5M 50T Brass Spur Gear Worm Gear Wheel 0.5 Module 50 Teeth 26x12x6mm Worm Gear Outer Diameter: 26mm/1.02", Hole Diameter: 6mm/0.24"Reland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (40 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.EMSea EMSea 200PCS Artificial Earthworm Fishy Smell Biomimetic Fishing Lure Soft Baits Simulation Bait Bloodworm Fake Redworm WIDE APPLICATION : Fit for different kinds of fishes,such as Bream, Bass, Flathead, Whiting, Snapper, Kingfish, HairtailOOSDWI 3/5/10PCS Mini 280 Electric Motor DC 12V 11400RPM Micro 24mm 41mm Worm Gear Shaft for Rearview Mirror Boat Robot Car DIY 1 This 3/5/10PCS Mini 280 motor adopts DC 12V design and has a no-load speed of up to 11400RPM, providing strong power fCHANCS CHANCS N20 DC Gearbox Motor 6V 60RPM Shaft Length 10mm Small Motor for Robot Wheel DIY Toys 2PCS Micro gear DC motor, high torque, low noise, long life, high transmission, fine work, pure copper motor, metal gears, loOOSDWI 3pcs Mini N20 Dual Shaft Gear Motor DC 3.7V 630RPM D-Shaft Large Torque Micro Turbo Worm Full Metal Gear Box Reduction M 1 Our 3pcs Mini N20 dual-shaft gear motors are made of high-quality materials, providing excellent performance and durabCHANCS CHANCS Reversible Worm Gear Motor 12V 6mm Shaft 28RPM Reduction Motorized Gearbox Motor for Curtain Machine,Advertising Turbine-worm geared motors are compact and have a self-locking function. when the motor is not energized, the output shaQANYEGN QANYEGN DC Worm Gear Motor, High Torsion Speed Reduce Electric Gearbox Motor, Reversible Worm Gear Motor 8mm Shaft 24V ( HIGH QUALITY AND MATERIAL: The Worm Gear Motor is constructed using materials, ensuring durability and a long service liNikou Nikou Worm Gear Motor, High Torsion Speed, Reduce The Electric Gear Motor, Reversible Worm Gear Motor, 8 mm Shaft 12 V ( High-quality materials: 12 V gear motor made of high-quality materials, high abrasion resistance, strong resilience, durRivermidfish AU 2PCS DC 12V 5RPM 15Kg.cm 8mm Single Shaft Self-Locking Reversible Worm Gear Reduction Turbine Electric Gearbox Motor 2PCS DC 12V 5RPM 15Kg.cm 8mm Single Shaft Self-Locking Reversible Worm Gear Reduction Turbine Electric Gearbox MotorOOSDWI Worm Gear Metal Motor Dual Shaft J DC6V 12V 24V Reduction 6-210RPM Large High Torque 2-45Kg.cm Electric Reversed Self-Lo 1 The Worm Gear Metal Motor is a high-performance micromotor suitable for a variety of application scenarios, providingKICHOUSE KICHOUSE 64pcs Plastic Gear Pulley Kit for DIY Robotics and Car Models Includes Worm Crown Shafts and Assorted Gears for Plastic pulley gears-- the set includes multiple kinds of gear to meet your different needs.JAJAJ DC12V 24V Powerful Torque Gearmotor Metal Turbo Worm Gearbox Type-D Shaft Reversed Low Speed Self-Lock Gear Motor for DI 1.Rated voltage: DC 12V and DC 24Vzakora zakora 200 Pcs Fishing Lure Soft,Plastic Earthworm Artificial Trout Worm Bait Lifelike Fake for Freshwater Saltwater,1.2 Good Worms -These Soft Plastic Worms are perfect for drop shot fishing and other techniques where a soft bait is neededReland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.CustomyLife CustomyLife 250pcs 20mm Fake Worms for Fishing Bass, Realistic Fishing Lure Fake Maggot Baits, Soft Plastics False Wax W Package Include: You will get 250pcs 20mm plastic bread worm. The sufficient quantity can meet your diverse fishing needJOJOCY DC 12V 130RPM Turbo Worm Geared Motor High Torque Turbine Speed Reduce Electric Gearbox Self-Locking Reversible Motor 8m Pure Copper Wire Core Rotor: With precision winding technology, the turbo worm geared motor power instant increased by 3Greartisan Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Di ALL-METAL GEARS, high-temperature resistance, high abrasion resistance, strong load capacity, sturdy and durable, effectReland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (10 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (90 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (150 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (210 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.JAJAJ DC12V 24V DC Worm Geared Motor with Self-Locking Adjustable Speed and Reversible M8 Double Shaft with Fange Speed 12 to 1. Our worm gear motor offers an impressive range of revolutions from 12 to 470 revolutions per minuteCHANCS CHANCS N20 N20 DC Motor with Gearbox 3V 400RPM Shaft Length 10mm Small Motor for Robot Wheel DIY Toys 2PCS Micro gear DC motor, high torque, low noise, long life, high transmission, fine work, pure copper motor, metal gears, loOINGHU Gears Pinion Gear, RYBOOL Steel Motor Drive Gear 1:90 1M 90T Stainless Steel Worm Gear Wear-Resistant Large Reduction Ra 2. Small size, light weight, easy to carry, easy to install, with good performance.MotiveTech MotiveTech DC 12V Worm Gear Motor with 8mm Shaft for High Torque Applications, 200RPM 【Material】: The DC Turbine Worm Gear Motor is made from premium copper and aluminum alloy for added durability, ensuringkokiya kokiya High Performance 12V Worm Gear Motor with 8mm Shaft, 20RPM 【Versatile Applications】: This high torque reduction electric gear box motor is ideal for various applications includingReland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (23 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.FSNEODYV FSNEODYV Gear Reducer, 60x60mm Worm Gearbox RV030 11mm Input, 14mm Output Shaft 5:1-80:1 Reduction Ratios for Nema 23 St Speed Adjustment: This gearbox reducer has high torque, so you can change your motor speed more easily. You can adjust tFSNEODYV FSNEODYV Gear Reducer, NMRV030 Worm Gearbox 56B14 9mm Input Shaft 14mm Output Shaft for 60W 90W Motor(1 Day 16:01:00) Speed Adjustment: This gearbox reducer has high torque, so you can change your motor speed more easily. You can adjust tXgdsnly Xgdsnly DC 12 V Turbine Worm Gear, Turbine Worm Gear Motor, Powerful, Versatile, Professional, 8 Mm Shaft, High Torque, 【Comfortable Grip】: The DC 12V Gear Motor offers a good hand feel and comfortable grip.Timken Timken 41267S Power Steering Worm Shaft Seal Item Package Dimension: 4.67L x 2.67W x 0.8H inchesTimken Timken 351267 Power Steering Worm Shaft Seal Product Type :Auto PartFSNEODYV FSNEODYV Gear Reducer, NMRV040 Worm Gear Reducer 14mm in 18mm Out Shaft 86x86mm Flange for Nema 34 Stepper Motor(15:01:0 Speed Adjustment: This gearbox reducer has high torque, so you can change your motor speed more easily. You can adjust tTimken Timken 710155 Power Steering Worm Shaft Seal Item Package Dimension: 4.67L x 2.67W x 0.8H inchesTimken Timken 223005 Power Steering Worm Shaft Seal Fits multiple makes and models (contact seller with your vehicle for fitment compatibility information)Timken Timken 441130 Power Steering Worm Shaft Seal Product Type :Auto PartTimken Timken 710303 Power Steering Worm Shaft Seal Item Package Dimension: 4.67L x 2.67W x 0.8H inchesReland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 Turbo Worm Gear Motor 6mm Shaft High Torque Turbine Reducer Micro Electric Motor DC 6V (66 RPM) This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.EVTSCAN Gear Motor DC 12V 16RPM Dual Shaft Turbo Worm Motor Speed Reduction Motor, for Machine POWERFUL OUTPUT: The DC geared motor features all metal gear that is heat resistant, providing strong output power, andReland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.FSNEODYV FSNEODYV Gear Reducer, NMRV030 Worm Gearbox 60x60mm Flange for Nema23 Stepper Motor 11mm Input 14mm Output Shaft(7.5:1) 4 Pcs Mounting BoltReland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.Reland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.FSNEODYV FSNEODYV Gear Reducer, NMRV040 Worm Gear Reducer Pack of 1 Multiple Ratios 14mm Input 18mm Output Shaft for 60x60mm Flan Ratio: 5:1, 7.5:1, 10:1, 15:1, 20:1, 25:1, 30:1, 40:1, 50:1, 60:1, 80:1, 100:1FSNEODYV FSNEODYV Gear Reducer, NMRV040 Worm Gearbox 80x80mm Frame for 80mm Motor 14mm/18mm Shaft 60mm Rabbet 5:1-100:1 Ratios(1 Ratio: 5:1,7.5:1,10:1,15:1,20:1,25:1,30:1,40:1,50:1 60:1,80:1,100:1Reland Sun Reland Sun JGY-370 12V DC Worm Gear Motor 12 Volt High Torque Engine Mini Turbine Worm 12V Reducer Electric Motor Self-l This gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.