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Best Choice tooloflife 
ToolOfLife 4/5/6.35/8/10/12/14mm Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector ✔Flange coupling is made of 45# steel, heat and electroplated process make it sturdiness and insulation.VGOL 
VGOL 2PCS 5mm to 8mm Shaft Couplers Aluminum Alloy Casing Rigid Coupling Compatible with Ender 3 V2 Ender 3 PRO Ender 3 Package includes 2pcs 5mm to 8mm shaft couplers.ANCIRS 
2 Pack Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors 【Durable Material】 Ancirs coupling connector is made of fine plating steel, heat and electroplated process make it sturduxcell 
uxcell 4mm to 6mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue,2p Connection Diameter: 4mm to 6mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inchBest Value BQLZR 
BQLZR Blue 6mm to 6mm Aluminum Shaft Coupling Rigid Coupling Coupler Motor Connector with Spanner Pack of 2 Scope of application: widely used in blowers, 3D printers, DIY robots, CNC machine tools, stepper motors, etc.uxcell 
uxcell 4mm to 6mm Bore Rigid Coupling Set Screw L20XD12 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Red,2pc Connection Diameter: 4mm to 6mm, Total Length: 20mm /0.78 inch, Outside Diameter : 12mm/ 0.47 inchuxcell 
uxcell 6mm to 6mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue,2p Connection Diameter: 6mm to 6mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inchuxcell uxcell 10mm Inner Dia H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector Silver Tone 2 PCS for DIY Inner Diameter: 10mm/0.39 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 16mm/0.63 inch, Cylinder Height:uxcell uxcell 4mm Inner Dia H12xD10 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts 4Pcs Inner Diameter: 4mm/0.15 inch;Total Height: 12mm/0.47 inch;Cylinder Outer Diameter: 10mm/0.39 inch;Cylinder Height: 10mmCENPEK CENPEK 4Pcs 8mm Flange Coupling Connector Rigid Guide Model Coupler Accessory Shaft Axis Fittings for DIY RC Model Motor Coupling connector is made of fine plating steel, heat and electroplated process make it sturdiness and insulation, striCENPEK CENPEK 4Pcs 8mm Flange Coupling Connector Rigid Guide Model Coupler Accessory Shaft Axis Fittings for DIY RC Model Motor Coupling connector is made of fine plating steel, heat and electroplated process make it sturdiness and insulation, striCHANCS CHANCS Motor Shaft Rigid Sleeve Coupling 7mm to 8mm Bore Rigid Coupling Set Screw Motor Accessories for DIY Parts 2PCS Motor Shaft Rigid Brass Sleeve Coupling offer high torque, stiffness, low inertia and excellent sensitivity. Hexagonal CGeneric 2PCS 10mm Inner Dia H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector Silver Tone for DIY Parts Inner Diameter: 10mm/0.39 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 16mm/0.63 inch, Cylinder Height:Sorandy 5 Pack 2mm Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Mo Material】2mm flange coupling connector is made of 45 steel, which is strong, wear resistant and has a long service life.tooloflife 4/5/6.35/8/10/12/14mm Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector ✔Flange coupling is made of 45# steel, heat and electroplated process make it sturdiness and insulation.CHANCS CHACNS Power Tool Parts Outer Diameter 10 mm Inner Diameter 5 mm Flange Coupling Connector Rigid Metal with High Hardnes * Flange coupling is a special coupling that can attach a shaft to a flat surface and easily install other accessories ouxcell uxcell 2mm to 2mm Bore Rigid Coupling Set Screw L20XD12 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Red,2pc Connection Diameter: 2mm to 2mm, Total Length: 20mm /0.78 inch, Outside Diameter : 12mm/ 0.47 inchKITANDOVE KITANDOVE High Strength Aluminum Alloy Flange Coupling Rigid Shaft Coupler Connector for Industrial and DIY Projects wit Rigid flange coupling:reliable connection method ensures stable and consistent transmission, reducing the likelihood ofTreehobby 6Pack ZYCST Aluminium Alloy Shaft Coupling Rigid Stepper Motor Wheel Coupler Joint Connector for DIY Car Boat Airplane 3 Suitable for connecting two axis with different diameters, can also be connected with a motor axis, or connecting shaftsuxcell uxcell Shaft Coupling, 1/2" Bore 1" OD 1-1/2" Length Black Oxide Plated Steel Rigid Coupling for 3D Printers Motor Wheel Size: 1/2 inch bore rigid set screw coupling, with 1 inch outside diameter, 1-1/2 inch length. (2 set screws)uxcell uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 45# Steel,Shaft Coupler Connector,Motor Accessories Connection Diameter: 8mm to 8mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 inchSG Store SG Store 4Pcs Flange Coupling Connector 5mm with Screws and M3 Hex Wrench for DIY Handmade Model RC Model Motors Hole Di Inner Diameter:5mm, Cylinder Outer Diameter:10mm, Cylinder Height:10mm, Base Height:2mm,Total Height:12mm, Mounting Holeuxcell uxcell 8mm Inner Dia H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector 2PCS for DIY Parts Inner Diameter: 8mm/0.31 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 16mm/0.63 inch, Cylinder Height: 1TopHomer 4/5/6.35/8/10/12/14mm Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector ✅Flange coupling is made of 45# steel, heat and electroplated process make it sturdiness and insulation.uxcell uxcell 6mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector,Motor Accessories Connection Diameter: 6mm to 8mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 inchuxcell uxcell 3.17mm to 5mm Bore Rigid Coupling Set Screw L20XD10 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Ligh Connection Bore Diameter: 3.17mm to 5mm; Total Length: 20mm /0.79 inch, Outside Diameter : 10mm/ 0.39 inch; with M3 Screuxcell uxcell 5mm to 5mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector,Motor Accessories Connection Diameter: 5mm to 5mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 inchuxcell uxcell 5mm to 10mm Bore Rigid Coupling Set Screw L25XD20 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories Connection Bore Diameter: 5mm to 10mm; Total Length: 25mm/0.98 inch, Outside Diameter: 20mm/0.78 inch; with M4 ScrewsMipcase Mipcase Aluminum Alloy Flange Shaft Coupling 6mm Inner Diameter Rigid Connector Base Set for and Mechanical Equipment DI Model coupler accessory--precision machining ensures high accuracy in transmission, providing reliable and efficient opeuxcell uxcell 7mm Inner Dia H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts Inner Diameter: 7mm/0.28 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 16mm/0.63 inch, Cylinder Height: 1SENRISE SENRISE Flange Coupling, 5 Set Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts, 4mm Material: 45# steeluxcell uxcell 8mm Inner Dia H13xD10 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts Black 2pcs Material: Iron Plating;Color: Black;Inner Diameter: 8mm/0.31 inch;Total Height: 13mm/0.51 inch;Cylinder Outer Diameter:uxcell uxcell 6mm to 6mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector,Motor Accessories Connection Diameter: 6mm to 6mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 inchuxcell uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Light B Connection Bore Diameter: 8mm to 8mm; Total Length: 25mm/0.98 inch, Outside Diameter : 14mm/0.55 inch; with M4 ScrewsCHANCS CHANCS Motor Shaft Rigid Sleeve Coupling 5mm to 8mm 100MM Long Steel Shaft Diameter 8mm Bore Rigid Coupling Set Screw Mo 【Description:】 Motor Shaft Rigid Sleeve Coupling offer high torque, stiffness, low inertia and excellent sensitivity ,youxcell uxcell 4pcs 6mm Flange Coupling Connector, Shaft Axis Fittings for DIY RC Model Motors, with 8pcs Fastening Screw 2pcs M Flange Coupling Connector is widely used in model shaft connection and is a great accessory for RC model motors.Treehobby 6Pack ZYCST Aluminium Alloy Shaft Coupling Rigid Stepper Motor Wheel Coupler Joint Connector for DIY Car Boat Airplane 3 Suitable for connecting two axis with different diameters, can also be connected with a motor axis, or connecting shaftsFUNOMOCYA FUNOMOCYA High Hardness Flange Coupling Connector Rigid Shaft Coupler for Rc Model Motor with Precision Guide Design Met Reduced vibration: the precision guide shaft design minimizes vibration and noise, improving the efficiency and comfortuxcell uxcell 3.17mm to 3.17mm Bore Rigid Coupling Set Screw L26XD10 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories Connection Diameter: 3.17mm to 3.17mm, Total Length: 26mm /1.02 inch, Outside Diameter : 10mm/ 0.39 inchuxcell uxcell 2PCS Shaft Coupling 6.35 to 8mm(ID) 25mm(L) Aluminum Alloy Shaft Coupler Connector Rigid Joint Motor Accessories This Shaft Coupling is a mechanical component made of aluminum alloy, mainly used to connect or fix two shafts so that tuxcell uxcell 2 Pcs Shaft Coupling, 5/16" Bore 5/8" OD 1" Length Black Oxide Plated Steel Rigid Coupling with Hex Wrench for 3D Size: 5/16 inch bore rigid set screw coupling, with 5/8 inch outside diameter, 1 inch length, and with a hex wrench andcizihuu Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector,2PCS Inner Diameter 6mm Please select the size you need.uxcell uxcell 6.35mm to 8mm Bore Rigid Coupling Set Screw L25XD20 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,4pcs Connection Bore Diameter: 6.35mm to 8mm; Total Length: 25mm/0.98 inch, Outside Diameter: 20mm/0.78 inch; with M4 ScrewsAkeady 1pc Rigid Flange Coupling, 2 3 3.17 4 5 6 6.35 7 8 10 11 12 14mm Aluminum Shaft Coupler, Motor Guide Shaft Coupler Conne Includes 1pc of 2 3 3.17 4 5 6 6.35 7 8 10 11 12 14mm.(Optional)YIZISECCE YIZISECCE for Flange Coupling Connector, for 5Pcs Stainless Steel Rigid Coupling, 3mm Inner Diameter Shaft Coupler 45 steel flange coupling connector heavy duty industrial coupling corrosion resistant long lasting mechanical connectoruxcell uxcell 4mm to 7mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Dark Bl Connection Bore Diameter: 4mm to 7mm; Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch; with M4 Screwsuxcell uxcell 10mm Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts Country of Manufacture: CHINA; Material: MetalNAMOARLY NAMOARLY High Hardness Flange Coupling Rigid Metal Shaft Connector for Industrial Automation with Wear-resistant Flange Efficient operation: the precision guide shaft design reduces vibration and noise, enhancing the operational efficiencyuxcell uxcell 8mm to 12mm Bore Rigid Coupling Set Screw L25XD20 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories Connection Bore Diameter: 8mm to 12mm; Total Length: 25mm /0.98 inch, Outside Diameter : 20mm/ 0.79 inch; with M4 Screwsuxcell uxcell 11mm Inner Dia H13*D18 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector Silver Tone for DIY Parts Inner Diameter: 11mm/0.43 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 18mm/0.71 inch, Cylinder Height:uxcell uxcell 4mm to 4mm Bore Rigid Coupling, 20mm Length 9mm Diameter, Copper Shaft Coupler Connector, Brass Tone 2Pcs [Specification] Connection Bore Diameter: 4mm to 4mm; Total Length: 20mm / 0.79 inch, Outside Diameter : 9mm / 0.35 inchHolibanna Holibanna High-strength Aluminum Alloy Flange Shaft Coupling Rigid Connector for Stable Transmission Industrial Machiner Sprocket hub:made of high strength aluminum alloy, offering excellent wear resistance for performance,coupling connectoruxcell uxcell 5mm to 8mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue Connection Diameter: 5mm to 8mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inchuxcell uxcell 5mm Inner Dia H12 x D10 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts Inner Diameter: 5mm/0.2 inch; Total Height: 12mm/0.47 inch; Cylinder Outer Diameter: 10mm/0.39 inch; Base Diameter: 22mmuxcell uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue Connection Diameter: 8mm to 8mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 incheMagTech eMagTech 4Pcs 8mm to 8mm Metal Shaft Coupling Universal Joint Shaft Coupling Flexible Coupling Connector Accessories for Package : You will get 4x 8mm to 8mm metal shaft coupling, 16x screw, 1x wrench.Dusehu Bore Rigid Coupling Set Screw - 2 Flexible Shaft Coupling Printer Accessories - Flexible Aluminum Alloy Shaft Coupling E ✧Optimized for Your Printing Needs: With its variety of specifications, our Printer Shaft Coupling is perfect for fittinLIYJTK Rigid Coupling Stainless Steel Shaft Coupler Connector D25L40 Motor Damping Coupling for Stepper Motors Servo Motors PA66 Material: The rubber body of this rigid coupling is made of PA66, which has good wear , erosion and electrical insuMMABEUTF Brass BORE Rigid Coupling Anti Corrosion Shaft Coupling Mechanical Transmission for Motors Hardware [PERFECTLY MACHINED]: THESE BORE RIGID COUPLINGS HAVE CLEAN, SMOOTH EDGES AND HIGH PRECISION, MAKING THEM RESISTANT TO Duxcell uxcell 3.17mm to 6mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Dark Connection Bore Diameter: 3.17mm to 6mm; Total Length: 25mm/0.98 inch, Outside Diameter : 14mm/0.55 inch; with M4 ScrewsNovent Shaft Coupler Connector - Lightweight Printer Shaft Coupling Accessories - Rust-Proof Aluminum Alloy Shaft Coupling Step ☒Tailored to Your Printing Needs: This printer shaft coupling has multiple specifications to suit various needs. You canGOLD DEER GOLD DEER 6mm Inner Dia Flange Coupling Connector with Hex Wrench Motor Guide Shaft Coupler Connector Rigid Flange Shaft Packaging Includes:6mm flange shaft coupling*4, fastening screw*8, hexagonal wrench*1, easy to install and remove screw,uxcell uxcell 5mm to 8mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Dark Re Connection Bore Diameter: 5mm to 8mm; Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch; with M4 ScrewsMAGICLULU MAGICLULU High-Strength Aluminum Alloy Flange Coupling Rigid Shaft Coupler with Inner for Industrial Machinery and Rc Mo Metal couplings--crafted from firm aluminum alloy, this coupling connector is highly resistant to wear, providing longteAkeady 2pcs Connector Rigid Coupler, Silver Rigid Coupling Shaft Coupler, 5x8x25mm Shaft Coupler Joint For Stepper Motors Includes 2pcs of Silver Connector Rigid Coupler, 5x8x25mm.Amosfun Amosfun High-Strength Aluminum Alloy Flange Coupling for Shaft Fitting Rigid Connector with High Accuracy for Stable Tra Rigid flange coupling--precision engineered for high accuracy in transmission, ensuring smooth and reliable performanceSYUULCOI 5pcs Flange Coupling Connector Professional Stainless Steel 3mm Inner Diameter Rigid Flange Shaft Coupling Premium Steel Flange Coupling Connector heavy duty industrial grade 45 construction durable corrosion resistant long lasYYALYYON 5pcs Flange Coupling Connector Professional Stainless Steel 3mm Inner Diameter Rigid Flange Shaft Coupling Premium Material Flange Coupling Connector 45 Steel Durable Strong Corrosion Resistant Long Life Industrial Equipment Mauxcell uxcell Rigid Screw Coupling 6mm to 6mm Shaft Coupler Connector L22mm x D14mm Steel Joint Connector Rigid Coupling Set fo This durable connector, made from high-strength, heat-resistant steel, keeps a reliable connection between different shauxcell uxcell Rigid Screw Coupling 6mm to 10mm Shaft Coupler Connector L22mm x D16mm Steel Joint Connector Rigid Coupling Set f This durable connector, made from high-strength, heat-resistant steel, keeps a reliable connection between different shaWiley Rigid-Flexible Coupling Hoisting Robots: Modeling, Analysis, and Control JECOMPRIS JECOMPRIS 6mm High Hardness Metal Flange Coupling Shaft Connector 4pcs Rigid Guide Coupler for DIY Model Accessories Easy installation: light shaft support structure simplifies installation, making equipment positioning and adjustment quOHPHCALL OHPHCALL High Hardness Flange Coupling Rigid Shaft Connector for DIY Parts Metal Guide Model Coupler with Wear-Resistant Enhanced longevity: the specially treated flange plate increases wear resistance, ensuring a longer lifespan and reducinuxcell uxcell 5mm to 6mm Bore Rigid Coupling 22mm Length 14mm Diameter Motor Shaft Coupler Connector Copper Connection Bore Diameter: 5mm to 6mm; Total Size: 22x14mm/0.86''x0.55''(LxD).JOROBURO Shaft Coupling, 5 Pcs Brass Shaft Coupling 22mm Length 14mm OD 5 to 8mm ID Bore Rigid Coupler Motor Shaft Connector Shaf Durable Construction: Crafted from premium brass material, ensuring long-lasting durability and resistance to wear and tuxcell uxcell 4mm to 5mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue,2p Connection Diameter: 4mm to 5mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inchVaguelly Vaguelly High Hardness Flange Coupling Connector Rigid Guide Shaft Coupler for Heavy-Duty Machinery Industrial Automatio performance: special treatment of the flange plate enhances its wear resistance, ensuring performance and reduced mainteNAMOARLY NAMOARLY High-strength Aluminum Alloy Rigid Flange Coupling with Inner Compact Design for Stable Transmission in Industr Shaft fittings for DIY part:suitable for a wide range of mechanical and industrial applications, this fitting is compatiFELTECHELECTR FELTECHELECTR Rigid Flange Coupling Connector Metal Shaft Coupler for Industrial Automation with High Hardness Material Easy installation: light shaft support structure simplifies installation, making equipment positioning and adjustment quTewloss Tewloss 10 Pack Steel Compression Rigid Coupling, 3/4 Zinc Plated Steel Threadless Coupling with Spring Coil, Metal Elec Package: You will get 10 pack steel compression rigid coupling. Our steel connectors have a threadless design and are fisourcing map sourcing map 8mm to 8mm Bore Rigid Coupling Set Screw L25XD18 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,2 Connection Bore Diameter: 8mm to 8mm; Total Length: 25mm/0.98 inch, Outside Diameter:18mm/0.7 inch; with M4 ScrewsBaxnore Baxnore 5Pcs Bore Coupling Steel Cylinder 8 to 8mm Fine Edges Bore Rigid Coupling Silver for Motor Hardware Mold Mechani [PREMIUM STEEL MATERIAL] Crafted from high-quality 45# steel, these bore couplings are built to last. The robust steel cuxcell uxcell 4mm to 4mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Blue Connection Diameter: 4mm to 4mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inchGatuida Gatuida 8mm High Hardness Metal Flange Coupling 4pcs Set with Flange Plate Guide Shaft Coupler for Rigid Shaft Motor DIY Vibration reduction: the precision guide shaft design minimizes vibration and noise, improving the operational efficiencuxcell uxcell 12mm to 12mm Bore Rigid Coupling Set Screw L25XD16 Aluminum Alloy,Shaft Coupler Connector,Motor Accessories,Black Connection Bore Diameter: 12mm to 12mm; Total Length: 25mm /0.98 inch, Outside Diameter : 16mm/ 0.63 inch; with M4 ScrewSluffs 5Pcs Bore Rigid Coupling Set 5mm to 8mm Shaft Coupler Connector Stainless Steel Coupler Rigid Couplings for 3D Printers Steel Material: Made of premium steel material, this bore coupling is strong and sturdy, corrosion resistant and possessAJUNJIIL AJUNJIIL Flange Coupling, for Professional Stainless Steel, 5Pcs 3mm Inner Diameter Rigid Shaft Coupling Connector, High Material: 45 Steel. Durable flange coupling connector for industrial applications. Features corrosion and extended lifesHealvian Healvian Aluminum Alloy Flange Coupling Shaft Fitting for RC Model Motor, 6mm Inner Diameter Rigid Shaft Coupler Connect Shaft coupler for DIY part:precision engineered for high accuracy in transmission, ensuring smooth and reliable performaAJUNJIIL 6mm Aluminum Alloy Flange Shaft Coupling Rigid Motor Guide Coupler for DIY RC Model Silver [ SHAFT CONNECTION] With 20mm outer diameter, 14mm cylinder length and 6mm inner diameter, this aluminum alloy flange shCOHEALI COHEALI High-Strength Aluminum Alloy Flange Coupling Shaft Fitting for Industrial Machinery Stable Transmission Compact Flange coupling--space efficient design with a compact structure, ideal for installations in confined or spaces,rigid flSENRISE SENRISE Couplings Shaft, Various Sizes Rigid Coupling Aluminum Shaft Coupling with Spanner and M4 Screw for DIY Model, 5 Three Types Coupler，26 different sizes for your choosinguxcell uxcell 4mm to 4mm Bore Rigid Coupling, 20mm Length 9mm Diameter, Copper Shaft Coupler Connector, Brass Tone 4Pcs [Specification] Connection Bore Diameter: 4mm to 4mm; Total Length: 20mm / 0.79 inch, Outside Diameter : 9mm / 0.35 inchuxcell uxcell 5mm to 6mm Bore Rigid Coupling, 20mm Length 9mm Diameter, Copper Shaft Coupler Connector, Brass Tone 4Pcs [Specification] Connection Bore Diameter: 5mm to 6mm; Total Length: 20mm / 0.79 inch, Outside Diameter : 9mm / 0.35 inchuxcell uxcell 4mm to 6mm Bore Rigid Coupling, 20mm Length 9mm Diameter, Copper Shaft Coupler Connector, Brass Tone 2Pcs [Specification] Connection Bore Diameter: 4mm to 6mm; Total Length: 20mm / 0.79 inch, Outside Diameter : 9mm / 0.35 inchuxcell uxcell 2mm to 2mm Bore Rigid Coupling, 20mm Length 9mm Diameter, Copper Shaft Coupler Connector, Brass Tone 2Pcs [Specification] Connection Bore Diameter: 2mm to 2mm; Total Length: 20mm / 0.79 inch, Outside Diameter : 9mm / 0.35 inchBQLZR BQLZR Shaft Rigid Couplings 6mm Blue D14L25 for 3D Printer CNC Machine Part Pack of 4 The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the deSpringer Rigid-Flexible Coupling Dynamics and Control of Flexible Spacecraft with Time-Varying Parameters Generic Daseeme 3pcs Rigid Shaft Coupler 5-8mm Bore L23xD18 for CNC Machine & 3D Printer Stepper Motor Rigid shaft coupling, compatible with 3D printer, CNC machine, stepper motor, etc.LIFKOME LIFKOME Aluminum Alloy Flange Coupling for Rc Model High Precision Rigid Shaft Coupler Motor Connector Wear-resistant Tr Rigid flange coupling:reliable connection method ensures stable transmission, reducing the risk of mechanical failure duLIYJTK Stainless Steel Shaft Coupler Damping Connector Motor Rigid Coupling for Stepper Servo Motors [PA66 MATERIAL] THE RUBBER BODY MADE OF PA66 ENSURES GOOD WEAR AND EROSION , AS WELL AS ELECTRICAL INSULATION, PROVIDING