Coupling Coupler 3mms of 2025
Best Choice1
QCDENGQCDENG 10pcs 3mm to 3mm Brass Shaft Coupling Joint Connector, Motor Shaft Extension Connector
Main highlights- Size: 3mm to 3mm
- Product Usage: Connect two shafts of different specifications to achieve the purpose of changing shafts
- Packing list: 10 x Motor Shaft Coupling Connector 2 x Allen Wrench 40 x Screws
- Material: Made of high-quality brass, high temperature resistance, corrosion resistance and oil resistance, long service life
- Application: With wrench and screw, widely used in various motors
9.7Exceptional
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Value for Money2
BefenybayBefenybay 8 Pcs 3mm to 3mm Brass Connector Copper DIY Motor Flexible Shaft Coupling Joint Connector with Screws for Small Motor (3mm to 3mm)
Main highlights- 【Widely Used】Shaft coupling is produced based on International Flange Standard, widely used for shaft connection
- 【Package Include】8pcs 3mm to 3mm shaft coupling, 1pcs M3 hex wrench, 32pcs fastening screws
- 【Material】 Shaft coupling is made of brass
- 【Function】 Can be used for small motor etc
- 【Dimensions】Inner Diameter: 3mm to 3mm. Outer Diameter: 9mm. Height: 20mm
9.6Exceptional
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3
daier4Pcs 3mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors
Main highlights- Widely use: used in model shaft connection, perfect accessories for RC Model motor.
- Size:Inner Diameter: 3mm,Height:12mm,Fixed Hole Screw: M3.
- Package included:4Pcs 3mm Flange Shaft Coupling + 1Pcs M3 Mini Hex Wrench + 8 x M3 Fastening Screw
- Durable Material: The coupling connector is made of 45# steel( it is better than copper and aluminum alloys ), heat and electroplated process make it sturdiness and insulation, striking shaft more stable and easy for installment and replacement.
9.5Excellent
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4
uxcelluxcell 3mm to 3mm Bore Rigid Coupling Set Screw L20XD12 Aluminum Alloy,Shaft Coupler Connector for RC Airplane Boat, Motor Accessories,Red,2pcs
Main highlights- Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
- Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
- Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
- NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
- Connection Diameter: 3mm to 3mm, Total Length: 20mm /0.78 inch, Outside Diameter : 12mm/ 0.47 inch
9.2Excellent
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5
EPLZONEPLZON 3mm Rigid Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Rigid Shaft Axis Fittings with Electroplated and High Hardness Heat Treated for DIY RC Model Motors(4Pcs)
Main highlights- Widely use:Suited for a wide range of DIY model shaft connection, these couplers are an essential component in building or repairing RC model motors.
- Quality Material:The coupling connector is made of 45# steel( it is better than copper and aluminum alloys ), heat treatment and plating process to ensure its excellent strength and durability, striking shaft more stable
- Package included:4Pcs 3mm Flange Shaft Coupling + 2Pcs M3 Mini Hex Wrench + 8 x M3 Fastening Screw
- Enhanced Stability:The robust construction of couplers ensures excellent shaft alignment and stability, minimizing vibration and wear, and prolonging the lifespan of your RC model motors.Perfect for those who value quality and precision in their DIY projects.
- Easy Installation:Flange Shaft Coupling can fix a shaft to a plane, and can easily install other accessories on the shaft. It is easy to install and replace
9.0Excellent
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6
HordionHordion 10Pcs 3mm to 3mm Brass Shaft Coupling Joint Connector, Shaft Coupler Motor Accessories with Screws
Main highlights- Versatile Usage: Shaft coupler can be used for motors, generators, RC models, metalworking, mold applications, and other mechanical drive systems.
- Precise Dimensions: Each shaft connector is precision-machined to ensure accurate dimensions and a tight fit.
- Package Content: Each package includes 10 motor shaft coupling connectors, 2 Allen wrenches, and matching screws, providing you with everything needed for installation.
- Function: This connector is designed to connect and change shafts, widely applicable in various industries.
- Durable Construction: Made of high-quality brass material, our brass shaft coupling joint connector is resistant to corrosion, rust, and wear, could be used for long time.
8.9Very Good
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7
daier12Pcs 3mm to 5mm Brass Shaft Coupling Joint Connector, Motor Shaft Coupling for RC DIY Airplane Boat Robot
Main highlights- Thread Size: M3; Length: 20mm/0.79 inch; Outer Diameter: 9mm/0.35 inch; Inner Hole Dia :3mm-5mm.
- Package include: 12 x Motor Shaft Coupling Connector;2 x Allen Wrench;48 x Screws
- Material: Made of brass, this shaft coupling is maintenance-free, oil-proof, and resistant to corrosion for long-lasting use. this coupling joint connector ensures long-term structural integrity and reliable performance.
- Application: Ideal for use in metal, mold, and mechanical drive applications, this coupler is perfect for automotive tires, RC models, airplanes, boats, electric cars, and toys.
- Advantage: With a top-tight type rigid coupling, this shaft connector delivers high torque and rigidity, low inertia, and excellent sensitivity.
8.8Very Good
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8
MrosnailMrosnail 4Pcs 3mm Flange Coupling Connector - Rigid Shaft Axis Fittings for DIY RC Model Motors
Main highlights- [Versatile Application]: Perfectly suited for a wide range of DIY projects, these couplers are an essential component in building or repairing RC model motors, offering versatility and ease of use for hobbyists and professionals alike.
- [Premium Quality Material]: Mrosnail's 3mm flange coupling connectors are crafted from electroplated, heat-treated steel, ensuring unparalleled durability and high hardness. Ideal for rigorous use in DIY RC model motors.
- [Precision Engineering]: These rigid shaft axis fittings are designed with meticulous attention to detail, offering a secure and stable connection for model motor shafts, enhancing performance and reliability.
- [Enhanced Stability and Alignment]: The robust construction of Mrosnail couplers ensures excellent shaft alignment and stability, minimizing vibration and wear, and prolonging the lifespan of your RC model motors.
- [Easy Installation]: Each set includes 4 flange coupling connectors, ensuring a hassle-free installation. The precision-engineered design allows for quick and efficient assembly, making it user-friendly for all skill levels.
8.7Very Good
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9
uxcelluxcell 3mm to 8mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Dark Blue,2pcs
Main highlights- Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
- Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
- Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
- NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
- Connection Bore Diameter: 3mm to 8mm; Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch; with M4 Screws
8.4Good
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10
uxcelluxcell 3mm to 5mm Aluminum Alloy Shaft Coupling Flexible Coupler Motor Connector Joint L25xD19 Silver,2pcs
Main highlights- Zero backlash. One-piece metallic spring coupling. For little torque shaft connect.
- Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required.
- Package Content: 2 x Shaft coupling
- Material: Aluminum alloy; Connection Diameter: 3mm to 5mm; Total Length: 25mm /0.98 inch; Outside Diameter : 19mm/ 0.75 inch
- Absorption of parallel, angular misalignments and shaft end-play by spring action.
8.3Good
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