Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
Best Choice CHANCS 
CHANCS Outer Diameter 30mm Single Groove Pulley 8mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentCHANCS CHANCS V-Type Pulley 16mm Outer Dia Single Groove Pulley 6mm Fixed Bore Pulley for Drilling Machine 4MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concent
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm Grooved width: 12.5mm(for 10mm width round belt)(Belt not included). OD: 40mm/60mm/80mm/100mm. Material: Aluminum Alloy.CHANCS 
CHANCS Outer Diameter 80mm Single Groove Pulley 16mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concent
U Grooved Pulley PU Round Belt Pulleys Aluminum For 4/5mm Width Belt OD 20-80mm Type：U Grooved Pulley。. -Grooved width: 4/5mm(for 4/5mm width belt)。. -OD: 20mm 30mm 40mm 60mm 80mm 100mm。. -Material: aBest Value CHANCS CHANCS Outer Diameter 3.1 in (80 mm) Single Groove Pulley 0.5 in (12 mm) Fixed Bore Pulley for Drilling Machines 6 MMPU Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentATNSINC 
ATNSINC 21PCS/Set GT2 Timing Belt Pulley Include 8pcs Mix Timing Belt 6 mm Width, 8pcs 20 Teeth 6mm Bore Belt Pulley Whe Package included: 8pcs GT2 close-loop belt in different size:110mm/ 112mm/122mm/158mm/200mm/280mm/300mm/400mm, 8 pcs GT2Double V Grooved Pulley PU Round Belt Pulleys Aluminum Width 7mm OD 30-80mm Type：Double V Grooved Pulley. -Grooved width: 7mm(for 6mm width belt). -OD: 30mm 40mm 60mm 80mm. -Material: aluminium alEMSea EMSea 4Pcs GT2 Smooth Idler Pulley 20 Teeth 5mm Bore 10mm Width Synchronous Belt Wheels with Double Bearings for 3D Prin GT2 toothless idler pulley, 20 teeth, 5mm bore, 10mm wide.V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm Type：V Grooved Pulley. -Grooved width: 12.5mm(for 10mm width belt). -OD: 40mm 60mm 80mm 100mm. -Material: aluminium allo10% Off Lokkr Lokkr 6PCS Aluminum 20 Teeth GT2 Timing Belt Pulley 8mm Bore 6mm Width, Synchronous Wheel for 3D Printer Parts Width 6mm ➤High Quality Material: Made of high-quality Aluminum Alloy, Surface oxidation treatment, durable, fine workmanship andLokkr Lokkr 6PCS Aluminum 20 Teeth GT2 Timing Belt Pulley 8mm Bore 6mm Width, Synchronous Wheel for 3D Printer Parts Width 6mm ➤High Quality Material: Made of high-quality Aluminum Alloy, Surface oxidation treatment, durable, fine workmanship andV Grooved Pulley PU Round Belt Pulleys Aluminum For 6mm Width Belt OD 20mm-100mm Grooved width: 7mm(for 6mm width belt). OD: 20mm/30mm/40mm/60mm/80mm/100mm. Material: Aluminum Alloy. Widely used: motorCHANCS CHANCS Outer Diameter 30mm Single Groove Pulley 12mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentAluminum V Grooved Pulley O Round Belt Pulleys For 6mm Width Belt OD 20mm-80mm Advertising Nail. Aluminium Profile. Titanium Alloy Fasteners. Cup Head Washers. Aluminum Alloy Fasteners. ● Product ApeCHANCS CHANCS Groove Aluminum Alloy V-Groove Belt Pulley 20mm OD 6mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentAlu Single Grooved Pulley PU Round Belt Pulleys OD 20-80mm Hole 5~15mm For Motor Advertising Nail. ● Product Aperture: 5/6/7/8/9/10/11/12/13/14/15/16mm. Cup Head Washers. Round Head Bolt. Button Head AMarhynchus Round Belt Pulley, 14mm Aperture Clamp, Fixed Round Belt Pulley, Used For Drive (Diameter of the joint PD 96mm) ALUMINUM ALLOY MATERIAL: Made of aluminum alloy material, strong and durable, not easy to damage, and long service life.Aluminum V Belt Pulley Drive Pulleys Grooved 7mm For 6mm Round / K-Type Belts Type: Single/Double Groove V Pulley. Pulley Specifications. -Material : Aluminum alloy. -Wide applications: motors, micrDLRSET Pulley Block, 1PC Silver Aluminum Alloy 30MM Single Groove Pulley,4-16MM Fixed Bore Pulley Wheel for Motor Shaft 6MM Rou [High Quality] Made of high-quality materials, wear-resistant and rust-proof.U Grooved Pulley PU Round Belt Pulleys Aluminum For 4/5/6/8mm Width OD 20-80mm Type：U Grooved Pulley. -Grooved width: 4mm/5mm/6mm/8mm. -OD: 20mm 30mm 40mm 50mm 60mm 80mm. -Material: aluminium alloy.ViaGasaFamido PU Polyurethane Transmission Round Belt for Conveyor Belt Applications, Bonding Machine Systems, and Dryer Equipment - 5 This Polyurethane round belt is rough surface. Easy to welding, easy installation, long service lifeV Grooved Pulley PU Round Belt Pulleys Aluminum For 6mm Width Belt OD 20mm-100mm Type：V Grooved Pulley. -Grooved width: 7mm(for 6mm width belt). -OD: 20mm 30mm 40mm 60mm 80mm 100mm. -Material: aluminiu10% Off Lokkr Lokkr 6PCS Aluminum 20 Teeth GT2 Timing Belt Pulley 5mm Bore 6mm Width, Synchronous Wheel for 3D Printer Parts Width 6mm ➤High Quality Material: Made of high-quality Aluminum Alloy, Surface oxidation treatment, durable, fine workmanship andDouble V Grooved Pulley PU Round Belt Pulleys Aluminum Width 7mm OD 30-80mm Type：Double V Grooved Pulley. -Grooved width: 7mm(for 6mm width belt). -OD: 30mm 40mm 60mm 80mm. -Material: aluminium alLokkr Lokkr 6PCS Aluminum 20 Teeth GT2 Timing Belt Pulley 5mm Bore 6mm Width, Synchronous Wheel for 3D Printer Parts Width 6mm ➤High Quality Material: Made of high-quality Aluminum Alloy, Surface oxidation treatment, durable, fine workmanship andAluminum V Belt Pulley Groove Width 1/2" Drive Pulley For 10mm Round/A-Type Belt Type: PU round belt V-groove pulley. - Groove width: 12.5 mm (for 10 mm wide belt). Pull keyway -Material: Aluminum alloYosoo Polyurethane Round Belt Rough PU Transmission Belt for Drive (Green)(6mm*10m) ?This Polyurethane round belt is rough surface,Wear and impactU-Groove Pulley Aluminum 20-80mm OD PU Round Belt Pulleys for 4-8mm Belts Width Gear Belt Bearings Couplings Chain Belt Pulley Nut Motor Bracket Other. ● Material: Aluminium. ● Slot width: 4mm 5mm 6mmLIYJTK Round Belt Pulley Aluminum Alloy Low Noise Clamp Fixed Drive Wheel Stable for Mechanical Pulleys Electric Motor Pulley ( [SOPHISTICATED PRODUCTION TECHNOLOGY] Ensures Good Elasticity and Smooth Movement in Round Belt Transmission, AlleviatinU Grooved Pulley PU Round Belt Pulleys Aluminum Groove Width 3mm OD 15-30mm Type：Double U Grooved Pulley. -Grooved width: 3mm(for3mm width belt). -OD: 15mm 20mm 25mm 30mm. -Material: aluminium allBaxnore Baxnore 5 Pack Aluminum Alloy Screw Fixed Round Pulley VShaped Groove 8mm Hole Durable Round Belt Transmission Pulley fo [PREMIUM ALUMINUM ALLOY BUILD] Engineered with high-grade aluminum alloy, these screw fixed round pulleys offer superiorU Grooved Pulley PU Round Belt Pulleys Aluminum For 2mm Width Belt OD 10-80mm Grooved width: 2mm(for 2mm width belt)。. -Type：U Grooved Pulley。. -OD: 10mm 15mm 20mm 25mm 30mm 42mm 50mm 60mm 80mm。. -MGatuida Gatuida 5 Meters Gt2 Timing Belt 6mm Perfect Fit for 3D Printer Linear Motion Timing Pulley Belt Timing pulley belt 6mm:designed specifically for linear movement,timing pulley wheelCHANCS CHANCS Aluminum Alloy Double Groove Pulley 80mm OD 16mm Fixed Bore Pulley for Drilling Machine 6mm(1/4") PU Round Belt *Pulley wheel is made of high quality aluminium material, which is not easy to rust, durable and has a long service lifeCHANCS CHANCS Outer Diameter 40mm Single Groove Pulley 16mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentCHANCS CHANCS Outer Diameter 80mm Single Groove Pulley 19mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentLrocaoai 84Pcs ABS Belt Drive Round Belt Pulley Rubber Band Combination Set Stretchable Engine Drive Round Belt 4. Made of high quality material, in use.DANAIXZ Round Belt Pulley Aluminum Alloy 14mm Aperture Stable Low Noise Clamp Fixed Drive Wheel (Diameter of The Joint PD 96mm) Using sophisticated production technology, this round belt pulley can be applied to round belt transmission and has gooduxcell uxcell V-Type Pulley 8mm Bore 80mm Outer Dia Single Groove Aluminum Alloy for Motor Shaft Drilling Machine 6mm(1/4") PU Package Content: 1pcs single groove pulley with 2pcs machine screws. Overall Dimension: 8 x 80 x 17.5mm/ 0.31 x 3.15 x 0Peakloong Peakloong 84Pcs ABS Belt Drive Round Belt Pulley Rubber Band Combination Set Stretchable Engine Drive Round Belt 4. Made of high quality material, in use.CHANCS CHANCS Outer Diameter 100mm Single Groove Pulley 24mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentuxcell uxcell Polyurethane Round Belts 3mm Dia, 3 Meters (10ft) Length PU Polyurethane Belt for Drive Transmission (Smooth Surf Size - Smooth surface Polyurethane round belt with 3mm diameter, and 3 Meters (10ft) length.uxcell uxcell Polyurethane Round Belts 3mm Dia, 3 Meters (10ft) Length PU Polyurethane Belt for Drive Transmission (Smooth Surf Size - Smooth surface Polyurethane round belt with 3mm diameter, and 3 Meters (10ft) length.Baxnore Baxnore Round Pulley 5 Pack Aluminum Alloy Screw Fixed VShaped Groove Pulley with 16mm Hole for Smooth Round Belt Transm [HIGH-QUALITY ALUMINUM CONSTRUCTION] Crafted from durable aluminum alloy, these screw-fixed round pulleys offer exceptiouxcell uxcell V-Type Pulley 7mm Bore 80mm Outer Dia Single Groove Aluminum Alloy for Motor Shaft Drilling Machine 6mm(1/4") PU Package Content: 1pcs single groove pulley with 2pcs machine screws. Overall Dimension: 7 x 80 x 17.5mm/ 0.28 x 3.15 x 0CHANCS CHANCS Outer Diameter 60mm Single Groove Pulley 17mm Fixed Bore Pulley for Drilling Machine 6MM PU Round Belt Description:The inner hole of the pulley is accurate in size, formed with one knife, runs smoothly, and has high concentANKROYU ANKROYU Round Belt Pulley, Aluminum Alloy Drive Wheel 14 mm Aperture, Low Noise Fixed Clamp Pulley for Mechanical Transm Transmission Design: This aluminium pulley integrates with round belts for effective friction drive; Transfers power smoFUWIND FUWIND 84Pcs Transmission Belt Drive Round Belt Pulley Rubber Band Combination Set Stretchable Engine Drive Round Belt AKLOSIPY Orange PU Polyurethane Round Belt 2mm x 10m – Drive Belt for DIY, Crafting, and Industrial Use High Tensile Strength - This PU round belt showcases an impressive tensile strength, ensuring it can withstand high tensHYVAWO HYVAWO Waist Belt Neoprene Padded Gym Pulley Strap with Rings for Cable Machines Fitness Exercise Speed Agility Resistan Durable webbing easily adjusts to accommodate your waist.Fits waist from 25 inches to 41 inches.uxcell uxcell V-Type Pulley 5mm Bore 80mm Outer Dia Single Groove Aluminum Alloy for Motor Shaft Drilling Machine 6mm(1/4") PU Package Content: 1pcs single groove pulley with 2pcs machine screws. Overall Dimension: 5 x 80 x 17.5mm/ 0.2 x 3.15 x 0.uxcell uxcell V-Type Pulley 12mm Bore 41mm Outer Dia Single Groove Aluminum Alloy for 4-5MM PU Round Belt Motor Shaft Drilling Size - Aperture Diameter: 5mm; Outer Diameter: 22mm; Height: 15mm; The pulley is a single groove, fixed hole with machinLIYJTK Round Pulley Durable V-Shaped Pulley 8MM Hole Round Belt Transmission Applicable Scene (5401-0005-0008) [MADE OF ALUMINUM ALLOY] The screw fixed round pulley is strong and durable, ensuring effective machine protection.Generic Generic 40pcs Plastic Pulley and Rubber Drive Belt Kit for Helicopter Model Parts, Small Round Transmission System Set f Durable and reliable: the rubber transmission belt is built to be durable and reliable, ensuring long term use for yourHARFINGTON HARFINGTON V-Type Pulley 8mm Bore 50mm Outer Dia Single Groove Aluminum Alloy for 3-5MM PU Round Belt Motor Shaft Drilli Size - Aperture Diameter: 8mm; Outer Diameter: 50mm; Height: 16mm; The pulley is a single groove, fixed hole with machinHARFINGTON HARFINGTON PU Transmission Belt Polyurethane Round Belts 5mm Dia 3.3ft(1 Meter) Length Smooth Surface Urethane Belt for Size - Diameter: 5mm/0.2"; Perimeter: 3.3ft(1 Meter); Black Smooth Surface Urethane Round Beltuxcell uxcell Single Groove Pulley 19mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm Size - Aperture Diameter: 4mm; Outer Diameter: 16mm; Overall Thickness: 12mm; Groove Width: 4mm; Groove Depth: 2.6mm; ApX AUTOHAUX X AUTOHAUX Belt Tensioner Pulley Assembly 2528125000 for Kia Optima 2006-2015 for Kia Magentis 2007-2010 Serpentine Tens [OE Number of Belt Tensioner and Pulley Assembly] 2528125000, 252812G000, 39071, 999220A, 49428, 89618, BT448, 89618FN,ACDelco ACDelco 38194 Professional Automatic Belt Tensioner and Pulley Assembly Ensures proper belt tension, alignment, and damping for superior performanceDRIVESTAR DRIVESTAR 1032000870 Belt Tensioner with Pulley 1994-1997 for Mercedes-Benz SL320,1987-1993190E,1987-1989 260E 300CE 300 Fitment:1994 - 1997 for Mercedes-Benz SL320,1987 - 1993190E,1987 - 1989 260E,1988 - 1993 300CE,1986 - 1993 300E,1994 - 1Domary Domary Round Pulley Durable VShaped Screw Fixed Pulley with 16mm Diameter Hole for Round Belt Transmission (5401-0006-00 [Shock Relief] Relieves shock and vibration during operation, protecting the machine and motor from damage.HARFINGTON HARFINGTON Polyurethane Round Belts 2mm Dia 16.4ft(5 Meters) Length Rough Surface PU Urethane Belt for Drive Transmissio Size - Diameter: 2mm; Perimeter: 16.4ft(5 Meters); Green Rough Surface Urethane Round BeltSING F LTD SING F LTD 10pcs GT2 Pulley 2GT Timing Pulley 20 Teeth 5mm Bore 6mm Width Belt Stepper Motor Pulleys Aluminum Timing Bel [Size] Height 16mm, bandwidth 6mm,20 teeth, inner hole 5mm.YOSADIER YOSADIER 10 Pcs 5Mm V-Shape Groove Large Model Pulley with Ball Bearings, Passive Round Bearing Pulley for 3D Printer Ac Silent wheels:the plastic roller bearing is a passive round model pulley to for 3d printer,small pulley wheel15% Off Domary Domary PU Polyurethane Green Rough Surface Round Belt Drive Transmission Spinning Machine (6mm*10m) [Versatile Usage] Can replace traditional rubber products, suitable for various applications like packaging and printingLIXIAOTONG Double Groove Round Belt Pulley Transmission Wheel Model Belt Motor Pulley Outer Diameter 40mm 6/7/8/9/10/11/12/14/15/16 Bore size:6/7/8/9/10/11/12/14/15/16 mmLIXIAOTONG Double Groove Round Belt Pulley Transmission Wheel Model Belt Motor Pulley Outer Diameter 40mm 6/7/8/9/10/11/12/14/15/16 Bore size:6/7/8/9/10/11/12/14/15/16 mmLIXIAOTONG Aluminum Alloy Round Belt Pulley Fixed with DIY Spindle Motor Drive Precision Beautiful Silk Top(6.35mm) Pulley for round beltLIXIAOTONG Aluminum Alloy Misumi Round Belt Pulley Spindle Motor Drive Belt Wheel Diameter 100mm(5mm) Bore size:5/6/6.35/8/10/11/12/15/14mmBQLZR BQLZR 41mm to 130mm Outer Dia 16mm Bore Aluminum 4 Step Pulley Belt for A Type V-Belt Made of aluminum material, durable and long service life.Kaifucy Kaifucy 2X Pulley 20 Teeth Bore 5mm + 6mm Timing Belt & 2X Idler 4X Tensioner for 3D Printer RepRap The pulley is used with the belt and is very convenient to use.uxcell uxcell 2Pcs Single Groove Pulley, 16mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 16mm / 0.63"; Outer Diameter: 30mm / 1.18"; And applicablGeneric Generic 10 Pcs 5Mm V-Shape Groove Large Model Pulley Wheels with Ball Bearings, Passive Round Bearing Pulley Set for 3D Small plastic pulley wheel:this roller has an outer diameter of 25 mm, a thickness of 11 mm and a bore of 5 mm,plastic wROMISBABA ROMISBABA 10 Pcs 5Mm V-Shape Groove Large Model Pulley Bearings Passive Round Wheel Bearing Pulley Set for 3D Printer Ac Wheels--the outside of the wheel is made of material with good physical, mechanical and properties,pulley bearingsuxcell uxcell 2Pcs Single Groove Pulley, 7mm Fixed Bore 20mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 7mm / 0.28"; Outer Diameter: 20mm / 0.79"; And applicableuxcell uxcell 2Pcs Single Groove Pulley, 5mm Fixed Bore 20mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 5mm / 0.2"; Outer Diameter: 20mm / 0.79"; And applicableKaifucy Kaifucy 5Mx6Mm Timing Belt +4Pcs 20 Tooth 5Mm Inner Diameter Pulley +4Pcs Idler + 4Pcs Tensioner Spring Torsion +2Pcs Ge Timing belt: The timing belt is made of premium rubber, and flexible. It's designed specifically for linear motion, highuxcell uxcell 2Pcs Single Groove Pulley, 6mm Fixed Bore 20mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 6mm / 0.24"; Outer Diameter: 20mm / 0.79"; And applicableuxcell uxcell 2Pcs Single Groove Pulley, 10mm Fixed Bore 20mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 10mm / 0.39"; Outer Diameter: 20mm / 0.79"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 5mm Fixed Bore, 16mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 5mm / 0.2"; Outer Diameter: 16mm / 0.63"; And applicableuxcell uxcell 1Pcs Single Groove Pulley, 12mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 12mm / 0.47"; Outer Diameter: 50mm / 1.97"; And applicabluxcell uxcell 1Pcs Single Groove Pulley, 6mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 6mm / 0.24"; Outer Diameter: 50mm / 1.97"; And applicableuxcell uxcell 1Pcs Single Groove Pulley, 20mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 20mm / 0.79"; Outer Diameter: 50mm / 1.97"; And applicablULTECHNOVO ULTECHNOVO 15pcs Gear Inner Hole Synchronous Aluminum Belt Pulley for Printer Printer Pulley Gear 3d printer wrench: it applies to 6mm width belt and 5mm shaft stepper motor.HOOWIFFY HOOWIFFY 10Pcs 3D Printer Roller Wheels V-Groove Plastic Pulley Bearings Passive Large Diameter Black 5Mm Bore for 3D Pr Small pulley wheel--this v groove pulley is made of material, these pulleys are durable, sturdy and wearable,pulley wheeuxcell uxcell 2Pcs Single Groove Pulley, 4mm Fixed Bore, 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 4mm / 0.16"; Outer Diameter: 30mm / 1.18"; And applicableKaifucy Kaifucy Hot 3D Printer Parts Accessory 2pcs 16teeth 16 Teeth Timing Alumium Pulley Bore 5mm Width 6mm with 2meters 2m 6m No slip, constant speed ratio can be obtained, is stable and can absorb vibrationuxcell uxcell 2Pcs Single Groove Pulley, 15mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 15mm / 0.59"; Outer Diameter: 30mm / 1.18"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 10mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 10mm / 0.39"; Outer Diameter: 30mm / 1.18"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 8mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 8mm / 0.31"; Outer Diameter: 30mm / 1.18"; And applicableuxcell uxcell 2Pcs Single Groove Pulley, 15mm Fixed Bore 40mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 15mm / 0.59"; Outer Diameter: 40mm / 1.57"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 14mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 14mm / 0.55"; Outer Diameter: 30mm / 1.18"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 5mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 5mm / 0.2"; Outer Diameter: 30mm / 1.18"; And applicableDECORNIJIA DECORNIJIA 10Pcs 3D Printer Plastic Pulley Set Large V-Shape Groove Passive Round Bearing Wheels for 3D Printer Rollers Passive round wheel:this v groove pulley is widely used in doors and windows to track and drive mechanical equipment,puluxcell uxcell 1Pcs Single Groove Pulley, 11mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 11mm / 0.43"; Outer Diameter: 50mm / 1.97"; And applicabluxcell uxcell 1Pcs Single Groove Pulley, 7mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 7mm / 0.28"; Outer Diameter: 50mm / 1.97"; And applicableuxcell uxcell 1Pcs Single Groove Pulley, 15mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 15mm / 0.59"; Outer Diameter: 50mm / 1.97"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 17mm Fixed Bore 60mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 17mm / 0.67"; Outer Diameter: 60mm / 2.36"; And applicabluxcell uxcell 1Pcs Single Groove Pulley, 18mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 18mm / 0.71"; Outer Diameter: 50mm / 1.97"; And applicablFUOYLOO FUOYLOO 10 Pcs 3D Printer Plastic Pulley Wheels V-Shape Groove Ball Bearings Large Passive Roller for 5Mm Bore Manufactu Printer roller wheels:the pulleys are produced by high-precision automatic lathe machining, with less machining error,Pauxcell uxcell 1Pcs Single Groove Pulley, 10mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 10mm / 0.39"; Outer Diameter: 50mm / 1.97"; And applicabluxcell uxcell 1Pcs Single Groove Pulley, 14mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 14mm / 0.55"; Outer Diameter: 50mm / 1.97"; And applicablLOLIPPYY LOLIPPYY 10Pcs 5Mm V-Shape Groove Plastic Bearing Pulley Wheels for 3D Printer Accessories Large Passive Roller Suitable Pulley bearing wheel:this widely used for wheel alignment, wire and belt,Printer Roller Wheelsuxcell uxcell 2Pcs Single Groove Pulley, 12mm Fixed Bore 30mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 12mm / 0.47"; Outer Diameter: 30mm / 1.18"; And applicabluxcell uxcell 1Pcs Single Groove Pulley, 16mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 16mm / 0.63"; Outer Diameter: 50mm / 1.97"; And applicablVALICLUD VALICLUD 10Pcs 3D Printer Large Plastic Pulley Wheels with V-Shape Groove, Passive Round Bearing Rollers for Compatible Pulley wheel--this v groove pulley is made of material, these pulleys are durable, sturdy and wearable,pulley rollersFOMIYES FOMIYES 10Pcs 3D Printer Roller Wheels Plastic V-Groove Pulley Bearings Passive Round Wheels for 5Mm Bore Black, Compati Pulley bearing wheel:this roller has an outer diameter of 25 mm, a thickness of 11 mm and a bore of 5 mm,bearing rolleruxcell uxcell 1Pcs Single Groove Pulley, 8mm Fixed Bore 50mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 1Pcs Single Groove Pulley; Aperture Diameter: 8mm / 0.31"; Outer Diameter: 50mm / 1.97"; And applicableuxcell uxcell 2Pcs Single Groove Pulley, 12mm Fixed Bore 80mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 12mm / 0.47"; Outer Diameter: 80mm / 3.15"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 17mm Fixed Bore 40mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 17mm / 0.67"; Outer Diameter: 40mm / 1.57"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 15mm Fixed Bore 80mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 15mm / 0.59"; Outer Diameter: 80mm / 3.15"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 16mm Fixed Bore 40mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 16mm / 0.63"; Outer Diameter: 40mm / 1.57"; And applicabluxcell uxcell 2Pcs Single Groove Pulley, 8mm Fixed Bore 40mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wren Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 8mm / 0.31"; Outer Diameter: 40mm / 1.57"; And applicableuxcell uxcell 2Pcs Single Groove Pulley, 20mm Fixed Bore 40mm Outer Diameter Aluminum Alloy Mechanical Belt Pulley with Hex Wre Package Content: 2Pcs Single Groove Pulley; Aperture Diameter: 20mm / 0.79"; Outer Diameter: 40mm / 1.57"; And applicabl