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Linear Bearing, 8Pcs LM10UU Linear Ball Bearing with 10mm Bore Dia,19mm OD,29mm Length, Professional Linear Motion Shaft PARAMETERS: Item Type: Linear Bearing Set; Model: LM10UU; Inner Diameter: 10mm / 0.39 inch; Outer Diameter: 19mm / 0.75Best Value VGOL 
VGOL 4PCS LM8LUU Linear Bearing 3D Printer Extra Longer Double Sealed Ball Bearings for 3D Printer Engraving Machine 8mm Application: These are ideal for small 8mm axle/hobby bar projects, such as 3D printer, engraving machine and many otherJectse 
2Pcs SC20UU 20mm Closed Linear Bearing Slide Block, CNC Linear Motion Ball Bearing Slide Block for Silent, High-Speed an oxidation treatment, beautiful and corrosion .uxcell 
uxcell LMF8UU Linear Ball Bearings 8mm Bore 15mm OD 24mm Length Round Flange Nickel Plated for CNC Machine 3D Printer 2p [SIZE] - Model: LMF8UU, 8x15x24mm Metric Double Seal Chromium Steel Linear Bearing, 32mm Round Flange BaseSorandy 
Sorandy SCS25UU Linear Bearing, 25mm Inner Diameter Slide Block Linear Motion Ball Bearing for Machinery and Equipment 【Aesthetic and Durable Treatment】With a surface oxidation treatment, it not only looks appealing but also resists corrosMarhynchus 
10pcs U624ZZ Mini U Ball Bearing Carbon Steel Pulley for Rail Track Linear System 4x13x7mm : These u type u- pulley roller wheel are made from carbon steel for durability and have a long service life.uxcell 
uxcell LMUT13 Linear Ball Bearings 13mm Bore 23mm OD 25mm Length Chrome Steel for CNC Machine 3D Printer 2pcs [SIZE] - Model: LMUT13, 13x23x25mm Metric Double Seal Chromium Steel Linear Bearinguxcell uxcell SCV12UU Linear Ball Bearing Slide Block Units, 12mm Bore Diameter 4pcs [SIZE] - Model: SCV12UU, 42 x 20.9 x 28mm Metric Double Seal Linear Bearing, 12mm Nominal Shaft DiameterTnfeeon Tnfeeon Linear Motion Rail, Easy Installation Great Workmanship Good Stability Sliding Rail for Equipment (10‑500) Excellent Performance: With a high hardness and a roughness of not less than 0.8mm, this linear rail offers excellent peHaofy Haofy Long Service Life U624ZZ U-Groove Ball Bearing Guide Roller 10 Pieces for Linear Motion Systems [DURABLE AND DURABLE] These U groove ball bearings are made of carbon steel, ensuring durability and a long service lifeOdorkle Odorkle SCS13LUU Linear Motion Ball Bearing Slide 13MM Inner Diameter Aluminum Alloy Unit Bushing CNC Linear Roller Bear Main Application: This linear motion ball slide'main function is to increase movement speed of your machine and ensure iMingzhe 20pcs V623ZZ V Groove Ball Bearing Pulley Rail Track Linear Motion System 3x12x4mm [Double Shielded Design] The bearings are equipped with double to prevent contaminants from affecting performance and touxcell uxcell 6Pcs LM16UU Linear Bearing 16mm Bore 28mm OD 37mm Length Linear Ball Bearings Double Side Rubber Sealed Bearing S TWO RUBBER SEALS FOR DUSTPROOF: These ball bearings are dust-sealed with two rubber seals to prevent the ingress of dirtCOMOK COMOK Silver Tone 20mm Inner Diameter Aluminium Alloy Linear Ball Roller Bearing Sliding Block Product Name:Linear Bearing;Model:SCS20uuRuilogod Ruilogod LM10UU Linear Roller Motion Bus Ball Bearing 10mm Inner Dia 2Pcs Product Name: Linear Bearing; Model: LM10UUANKROYU ANKROYU V6000 Roller Bearing, Steel Bearing, Rust Prevention Double Roller Bearing, V Grooved Single Roller Guide Bearin 【Combined Load Capacity】These roller bearings are engineered to handle combined loads, providing support and durabilityEMSea EMSea 2pcs Rowing Machine Seat Wheel Nylon Roller Wheel With Bearing 8x36x10mm POM Drawer Slide Roller Track Wheel with Features an M8 threaded shaft for easy and secure installation. With dimensions of 36mm outer diameter, and 10mm width,Healvian Healvian Open Linear Motion Shaft Block SBR20UU 20mm Slide Block Bearing Rollers for CNC Machine Linear Rail Guide Carri durability: made from materials, this linear rail block bearing is designed to providing longterm durability,linear motiICQUANZX ARCELI 4pcs SK8 8mm CNC Linear Motion Ball Slide Units Rail Support Guide Shaft Bearing Has good performances, low friction coefficients and long usage spans.COMOK COMOK Silver Tone 25mm Inner Diameter Aluminium Alloy Linear Ball Roller Bearing Sliding Block Product Name:Linear Bearing;Model:SCS25uuMarhynchus 10Pcs Linear Motion Bearing Linear Ball Bearings Cylinder Optical Axes Slider Test Frame Spare ID 8mm OD 15mm LM8UU for Smooth Motion: This linear motion bearing adopts interchangeable and standardized design, compared with other products,Mipcase Mipcase Linear Rail Bearing Block Sbruu Open Linear Ball Bearing Slider for Cnc Machines Automated Equipment Heavy Load Load capacity: designed to handle high loads, this linear slider bearing block can support significant pressure and weiguxcell uxcell 8Pcs 3D Printer Wheel with 625ZZ Linear Bearing, 3D Printer Pom Roller Plastic Pulley Wheel for 3D Printer, Red [Size & Packaging]: The 3D printer wheel has a rubber outer diameter of 24mm / 0.94 inch, a total height of 10mm / 0.39NDNCZDHC 10pcs Linear Motion Bearing, LM12UU 12mm Linear Bearing Linear Bearings Bearing Roller Bearing Bearings for 12mm Rod 3D If you have any questions, please contact us in time, we will be happy to solve the problem for you.MJIYSGS 20-Pack 608-2RS Ball Bearing - 608 2RS Double Rubber Sealed Miniature Deep Groove Ball Bearins for Skateboards, Inline S 20pcs 608-2rs ball bearing 8x22x7mm, rubber sealed deep groove.Respicefinem Respicefinem Steel Lm40Uu 14. 0×14. 0×9. 0 2Pcs Linear Bearings Steel Low Noise High Cylinder Linear Bearings for Printe Specification:This Linear 80Mm Width, 60Mm Outer Diameter, 40Mm Inner Diameter. Provide You With An Accurate Choice, SuiLIYJTK Linear Ball Bearing Slides Aluminum Alloy Roller Bearing Slide Block Electronic Equipment [HIGH-QUALITY MATERIAL] Made of aluminum alloy for enhanced durability and increased bearing capacity.AMAKO SBR16UU Linear Bearing Slide 16mm Aluminum Open Linear Motion Bearing Block High Precision Roller for CNC Machines DIY R [DURABLE & Oxidation Tough] The SBR16UU linear bearing slide features a chrome-plated surface that combines aesthetic apNOLITOY NOLITOY Open Linear Bearing Block Sbr20uu 20mm Linear Roller Bearing Slide Block Sturdy Carriage Slider and Shaft Motion Wide application: for a range of automated equipment, cnc machines, and cutting machines, this linear guide rail block iELAYARD ELAYARD Open Linear Ball Bearing Slide Block Sbr20uu 20mm Linear Roller Bearing Carriage Slider for Cnc Machines and Aut Versatile use: this linear guide rail block is for a range of applications, including automated equipment, cnc machineryBaxnore Baxnore 2 PCS LM40UU Linear Ball Bearings, Bearing Steel Linear Motion Bearings, Low Noise Linear Roller Bearings for 3D Material: Made from bearing steel, this linear ball bearing undergoes special heat treatment, enhancing its service lifeDpofirs Linear Guide Rail, Sliding Rail Good Stability GCr15 C45 Carbon Steel with 4Pcs Slide Block for Equipment (10‑500) Material: Made of GCr15 C45 carbon steel, the linear rail is highly and can withstand extensive use in different environTenNuoDa Bearings Slide Bushing,SBR16UU Aluminum Open Linear Router Motion Bearing Solide Block 16mm Shaft Diameter Linear Roller 【Stable Precision】Aluminum slide block moves smoothly and does not skew, and has the characteristics of low wear, low nouxcell uxcell Linear Motion Rod Shaft Guide Set 2pcs 12mm x 500mm Linear Motion Guides Bearing Steel Plated Smooth with 2pcs SC Linear Motion Shaft Set: Package includes 2 x linear rail, sized 12mm x 500mm, 2 x SCS12UU bearing blocks, and 4 x SHF12Gatuida Gatuida 16pcs Printer Passive Round Roller Wheels with Precision Steel Bearings Pom Material Low Noise Smooth Linear Bea Passive round pulley:it is plastic 3d printer wheels with precision steel bearings for 3d printing,wheel bearingBaluue Baluue 12pcs Passive Round Roller Linear Bearing Guide Roller Bearings for Printer Accessories Printing Parts Wheel 3D PRINTER PULLEY-- It is easy to install, small in size, easy to carry and store, and has good performance.uxcell uxcell® SCS10LUU Linear Ball Bearing Slide Block Units Extra Long, 10mm Bore Dia 1Pcs Model: SCS10LUU (Bearing No.: LM10LUU, Nominal Shaft Diamter (dr): 10mm)Gugxiom Linear Rail Slider Set, 800mm 4pcs SBR12UU Fully Support Linear Bearing Rail Slide Guide Shaft, 12mm Diameter Shaft Line 800 MM, SBR12UU：This linear rail kit includes 2pcs 31.5 inches/800 mm long linear rail spindles with 0.47 inches/12 mm seMagTech eMagTech RJ4JP-01-08 Drylin Linear Bearing 3D Printer Replacement LM8UU Bearing 8mm Inner Shaft 15mm Outer Diameter 24mm 8 mm inner diameter.uxcell uxcell Linear Ball Bearings 8mm Bore 15mm OD 24mm Length for CNC Machine 3D Printer 4pcs [SIZE] - 8x15x24mm Metric Double Seal Linear BearingYuCool 4 Sets AXK2035 Thrust Needle Roller Bearings,YuCool Thrust Needle Roller Bearing with Washers 20mm Bore 35mm OD 2mm Widt VALUE PACKAGE: 4*bearing,8*bearing washers.ULTECHNOVO ULTECHNOVO 8pcs Printer Wheels DIY Printer Accessories Filament Roller Linear Bearing Pulley Bearings Passive wheel-- they are for working with the 3d printer, easy to install, very convenient.Ciieeo Ciieeo Sbruu Open Linear Bearing Blocks Shaft Linear Rails Bearing Slide Units for Cnc Machines Automated Equipment High Wide application range: suitable for various equipment, including automated systems, cnc machines, this linear guide raiiplusmile iplusmile 4pcs Printed Pulley Guide Passive Round Roller Linear Bearing Guide Roller Bears for Printer Printer Accessori Linear bearing:outstanding workmanship, reasonable design, stable and practical, will bring you a using experience,PassiNAMOARLY NAMOARLY Sbruu Open Linear Rail Block Bearing Precision Slider for Cnc Machines Automated Equipment Wear-resistant Rolle Wide application: for a range of automated equipment, cnc machines, and cutting machines, this linear guide rail block iRuimou Ruimou 4Pcs SCS10UU Linear Motion Ball Bearing Slide Unit Bushing(10MM Inner Dia.) for CNC Machine Linear Sliding, 3D Pr SCS10UU sliding unit bearings are made of aluminum alloy, 40 * 35 * 26mm (10mm Inner Diameter).IMIKEYA IMIKEYA 4pcs Printer Pulley Wheels with Pom Material and Bearings Low Noise Smooth Linear Bearing Rollers for Stable Pri Small pulley wheel--smooth movement and high printing accuracy can the printing speed, making them a useful 3d printer aDiitao Diitao 3D Printer POM Wheel Plastic Pulley Linear Bearing Black Passive Round Wheel Roller for Creality Ender 3, Ender 3 POM Bearing Pulley --- The pulley is made of POM imported material, which runs smoothly, is durable, has good wear resisuxcell uxcell Linear Motion Rod Shaft Guide Set 2pcs 8mm x 500mm Linear Motion Guides Steel Plated Smooth with 2pcs SCS8UU Bear Linear Motion Shaft Set: Package includes 2 x linear rail, sized 8mm x 500mm, 2 x SCS8UU bearing blocks, and 4 x SK8 shauxcell uxcell® SCS12UU Linear Ball Bearing Slide Block Units, 12mm Bore Dia (Pack of 2) Model: SCS12UU (Bearing No.: LM12UU, Nominal Shaft Diamter (dr): 12mm)Baluue Baluue 4pcs Passive Round Roller Linear Bearing Guide Pulley Wheels for 3D Printer Accessories with Pom Material and Bea Smooth Operation Solution: The 4pcs Passive Round Roller Linear Bearing Guide Roller Linear Bearing Pulley is designed fGrcfumo Grcfumo 40mm Aluminum Linear Motion Ball Bearing Slide Block, CNC Linear Unit, Slide Bushing Linear Roller Bearing Slide MULTIPLE BATTERY PARAMETER MEASUREMENT: The multifunctional battery meter is mainly used to measure voltage, discharge cAoutecen 4PCS SBR10UU Bearing Blocks Open Sliding Ball Bearing Block Aluminum Slider Linear Motion Ball Bearing Slide Block for C [High Concentricity] With fine workmanship and uniform bearing surfaces, these sliders can withstand heavy impact loadsXiKe XiKe 10 Pcs 2" Nylon Garage Door Roller 4" Stem, MAX Quiet, Durable and Waterproof Types, Using 6200-2RS Precision Beari Effectively reduce more than 80% noise and durable.HUANGYUZHENZHI Linear Rail 2Pcs SBR16 Linear Rail Guide 300 400 500 600 1000 1200 1500mm + 4pcs SBR16UU Linear Bearing Block Linear Rai Aluminum profile extrusion products are a good linear motion material with high strength and adjustable.ULTECHNOVO ULTECHNOVO 16pcs Roller Wheels for Printer Parts Passive Round Roller Linear Bearing Printer Accessories for Printing Ma LINEAR BEARING-- It is easy to install, small in size, easy to carry and store, and has .RIZGHWOY RIZGHWOY Linear Slide Table Guiderail Small Screw Stroke Slide Table Stepper Router Single Rail Linear Roller Bearings Structure: The linear stage is made of alloy, and the thickened plate at the ensures stability duringJECOMPRIS JECOMPRIS 16pcs Printing Accessories Passive Wheel Roller Wheel Passive Round Roller Linear Bearing for Printer Printer Linear bearing pulley--the performance is better than the iron bearing wheel, our developed 3d printed wheels have rubbeCOSMEVIVI COSMEVIVI Sbr20uu Open Linear Roller Bearing Slide Block 20mm Inner Diameter Linear Ball Bearing Slider Carriage for Cnc Precision Performance Linear Motion Guides Slider rail Open Linear Bearing Slide Block 20mm SBR20UU delivers smooth andYUANQIAN Durable 1.8 Inches Nylon Garage Door Rollers 6200ZZ 10 Ball Bearing 4.75 Inches Stem (4.75" Stem10Pack, 10) 【High-Performance Durability】Our garage door rollers are designed to deliver high-performance and durability, making theHUHAXIXI 4pcs Linear Ball Bearing Blocks, Ball Bearing Slide Bushing, SCS8LUU SCS10LUU SCS16LUU Bearing Slide for 3D Printer(8) The sizes expressed are the numerical numbers of SCSLUU series, please refer to the pictures for details, please selectHotcoS Bearings Double Rubber Sealed Roller Ball Bearings Printing Machine Bearings NUKR35-A Linear Bearings Bolt Type Roller N Good quality: ball bearings are made of high-quality bearing steel. Its steel construction makes it durable and to deforHUHAXIXI 4pcs Linear Ball Bearing Blocks, Ball Bearing Slide Bushing, SCS8LUU SCS10LUU SCS16LUU Bearing Slide for 3D Printer(10) The sizes expressed are the numerical numbers of SCSLUU series, please refer to the pictures for details, please selectBAZEITFLOW BAZEITFLOW 4pcs Pom Printer Pulley Wheels with Linear Bearings Quiet Low Friction Printer Parts for Smooth Movement and Roller bearing wheels--our 3d printer bearings function very well due to the stable performance and smooth surface,wheelERINGOGO ERINGOGO Open Linear Motion Shaft Block Sbr20uu 20mm Slide Block Bearing Ball Rollers for Cnc Machines and Industrial Li Effortless installation: the straightforward design of this linear motion ball bearing slide block allows for easy instaFloolinct XY Axis Manual Platform Linear Sliding Table Cross Roller Guide Type Stage 40x40mm SEMYW40AS Linear Stage [ALUMINUM ALLOY WITH BLACK OXIDATION] The sliding table is wear-resistant, corrosion-resistant, waterproof, and , ensuriLIYJTK Manual Linear Stage Aluminum Alloy Z Axes Slide Table 19.6N Bearing for Alignment Positioning Capacitive Touch Screen Pr [HIGHLY ACCURATE]: This slide allows for precise manual fine-tuning, ensuring impeccable results for a variety of tasks.uxcell uxcell 32006X Tapered Roller Bearing Cone and Cup, 30mm Bore x 55mm OD x 17mm Thick, Chrome Steel Taper Bearing Set, ABE High Load Capacity: Tapered Roller Bearings are designed for high-load applications and can withstand large radial and aZHFGPLKA 10Pcs 4 * 18 * 8mm V Groove Track Roller Bearing High Speed Guide Rail Ball Bearing for Rail Track Linear Motion System The V-groove design provides secure guidance and smooth travel along matching V-track rails.FELTECHELECTR FELTECHELECTR 16pcs Roller Wheels Passive Round Roller Linear Bearing Printer Parts Printer Accessories for Wheels Passive round wheel: it is plastic 3d printer wheels with precision steel bearings for 3d printing.EXERAUO EXERAUO 12 Pack 2" Nylon Garage Door Rollers, 4" Nylon Layer Stem, Quiet/Smooth Garage Door Wheels Replacement, Double S Quiet Garage Door Rollers: Unlike standard garage door rollers, ours feature a 4-inch carbon steel shaft with a unique nNHJLFKSA Needle roller bearing F-54635.RLB RNA12x25x10 linear bearing BearingsXTevu 2Pcs 300mm12mm SBR12UU Linear Slide Rail Shaft 4Pcs Bearing Slide Block Linear Bearing Inside Linear Motion Roller Beari The linear slide rail shaft is made of high quality carbon steel, and the bearing block is made of aluminum alloy, sturdOROAOBOMT 1pcs E6192/17K1 E6192-17 E6192 17 Machine Tool Bearing Linear roller bearings Linear recirculating roller bearings OROAO NHJLFKSA NHJLFKSA Bearings Linear Bearings NUKR35-A Needle Roller Bearings with Bolts(NUKR35-A) Bearings & Bearing KitsXiKe XiKe 12 Pack Blue 2" Nylon Garage Door Roller 4" Stem, Quiet/Durable and High Load, Use 6200-2RS Double Seals Precision ✔ Benefit - Effectively reduce more than 80% noise and durable.NHJLFKSA NHJLFKSA Needle Roller Bearings F-80491.BSR Open Ball Linear Motion Bearings with Bolt Bearings & Bearing KitsEMSea EMSea 20x U624ZZ U Groove Ball Bearings 4x13x7mm High Carbon Steel Miniature Guide Pulley Rail Wheel with Double Shielde Bearings have 1.5mm deep U groove that generally ride on a rail or track, 4mm/0.15inch inner diameter, 13mm/0.51inch outKICHOUSE KICHOUSE 4pcs 20-Type Pom Passive Round Roller Wheels with Bearings for 3D Printer Linear Bearing Pulley Tracks, Black D Precision Printing Performance: The 4pcs Roller Wheel 3d Printer Pulley Wheel Passive Round Pulley in 3D printed pulleyuxcell uxcell 4-Pack 3D Printer Rollers V Slot, 0.94"/24mm 3D Printer Solid POM Pulley Wheels 625RS Double Bearing for 3D Print [Multipurpose Use] - Our v slot pom pulley wheels have various applications. They can be used for most 3D printers, CNCHUANGYUZHENZHI Linear Rail 2Pcs SBR16 Linear Rail Guide 300 400 500 600 1000 1200 1500mm + 4pcs SBR16UU Linear Bearing Block Linear Rai Aluminum profile extrusion products are a good linear motion material with high strength and adjustable.DANAIXZ Precision XY Linear Stage Manual Micropositioning Table 40x40mm Cross Roller Guide Micrometer Adjustment Platform for La [PRECISION MICROMETER CONTROL] This professional XY stage features precise micrometer adjustment knobs with 0.01mm minimHUANGYUZHENZHI Linear Rail 2pcs/Set SBR10 SBR12 SBR16 SBR20 Linear Guide Rail Slide Shaft Rod Any Length with 4pc Linear Bearing Blocks Aluminum profile extrusion products are a good linear motion material with high strength and adjustable.OKUMEYR OKUMEYR 16pcs Roller Wheels Passive Round Roller Linear Bearing Printer Parts Accessories for Printer Wheels and Linear Roller wheels:the performance is better than the iron bearing wheel, our developed 3d printed wheels have rubber bearingJoyzan Joyzan 6700ZZ Ball Bearings, Longboard Integrated Roller Skate Bearing Deep Groove Double Shielded Thin Wall Steel Skate Thin Wall Design: Miniature ball bearings, thin section ball bearings are used for applications where space limitationsuxcell uxcell 32006X Tapered Roller Bearing Cone and Cup Set, 30mm Bore 55mm OD 17mm Thickness Model: 32006X (Bore: 30mm, Outer Diamter: 55mm, Total Thickness: 17mm)XiKe XiKe 2" Nylon Garage Door Roller 4" Stem, MAX Quiet, Durable and Waterproof Types, Using 6200-2RS Precision Bearings -12 Effectively reduce more than 80% noise and durable.Ysyaxsyt
Ysyaxsyt [13Pcs/Pack] 3D Printer POM Pulley Wheels 625Zz Linear Bearing Ulley Passive Round Wheel Roller for CR10, 3 [High Precision]With die casting process, the pulleys are produced within 0.005mm deviation.Phefop Phefop Manual Linear Stage, Linear Motion Actuators Slide Table with 0.01mm Scale, Aluminum Alloy Cross Roller Bearing f CROSS ROLLER BEARING FOR SMOOTH TRAVEL: Incorporates a high-grade cross roller bearing structure, which ensures exceptioYUANQIAN Durable 2 Inches Nylon Garage Door Rollers 6200ZZ 10 Ball Bearing 6.7Inches Stem (6.7" Long Stem 16pcs) Replacement garage door rollers for home use. Perfect for replacing old, worn, noisy, or broken rollers. Garage door rolRespicefinem Respicefinem Cross Axis X Linear Stage Micrometer Manual Fine Tuning Cross Roller Precision Linear Stages 25X25mm Cross Versatile Application Across Industries: From production lines to laboratory settings, this cross axis stage excels in aSustVita SustVita Manual X Axes Linear Stage 60x60mm Table with ±6.5mm Stroke, a Linear Stage with Cross Roller Guide for Laborat PRECISION ENGINEERING: Achieve fine adjustments with a 0.01mm scale. This Manual X Axes Linear Stage offers 3μm straightHUANGYUZHENZHI Linear Rail 2Pcs SBR16 Linear Rail Guide 300 400 500 600 1000 1200 1500mm + 4pcs SBR16UU Linear Bearing Block Linear Rai Aluminum profile extrusion products are a good linear motion material with high strength and adjustable.Adfaga Manual X Axes Linear Stage High Precision Sliding Table Platform with Cross Roller Guide for Laboratory Testing Optical [HIGH PRECISION POSITIONING] This manual X axes linear stage features a fine tuning slide table that supports ultra precBjworeye Bjworeye [13Pcs/Pack] 3D Printer POM Pulley Wheels 625Zz Linear Bearing Ulley Passive Round Wheel Roller for CR10, 3 [High ]With die casting process, the pulleys are produced within 0.005mm deviation.ViaGasaFamido ViaGasaFamido Manualller XY-Lineartisch, Manualeller XY Linear Sled Table, High-Precision Micrometer with Anodized Scale [With scale] The sliding surface of the linear sliding table is wide and the micrometer head has a precise scale that isRUAION 6pcs SBR35UU Linear Motion Ball Bearing Slide Unit Bushing Linear Roller Bearing 6pcs SBR35UU Linear Motion Ball Bearing Slide Unit Bushing Linear Roller BearingZLXHDL U22 U Shaped Round Bottom Track Groove Pulley Bearing Sliding Rollers Bearing for Window and Door Linear Motion Systems This track rollers bearing U-Groove bearings is mostly used in industrial automation equipment and photographic equipmenTMVQPKCV 3D Printer POM Pulley Wheels 625Zz Linear Bearing Ulley Passive Round Wheel Roller Compatible with Creality CR10,Ender 3 Durable POM material ensures long lasting performance and reduced friction for smooth operation.Anlayliay Anlayliay [13Pcs/Pack] 3D Printer POM Pulley Wheels 625Zz Linear Bearing Ulley Passive Round Wheel Roller for CR10, 3 [High Precision]With die casting process, the pulleys are produced within 0.005mm deviation.