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Linear Motion Products Categories
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Linear Motion Rod Shaft Kit with Low Friction Coefficient, 304 Stainless Steel, High Tensile Strength, Wide Use for 3D P Kit Contents: Linear guide rod shaft kit contains 2 linear motion guide rod shaft, 4 SC8UU sliding bearing block, 4 shafViaGasaFamido 
ViaGasaFamido 12V Power Linear Motion Products 750N Stroke 150-700Mm Linear Actuator Hub Electric Motor Bracket Industri The movable push rod is an electric drive device that converts the motion of the motor into the linear reciprocating motBest Value VEVOR 
VEVOR Linear Actuator 12V, 20 Inch Waterproof IP65 Linear Actuator, 660lbs/3000N 0.19"/s Linear Motion Actuator with Mou IP65 Protection Rating: Featuring a IP65 protection rating, VEVOR's 12V linear actuator delivers resistance to dust andVEVOR 
VEVOR Linear Guide Rail Set, SBR20 1000mm, 2 PCS 39.4 in/1000 mm SBR20 Guide Rails and 4 PCS SBR20UU Slide Blocks, Linea SBR Linear Guide Rail Set: SBR20-1000 mm Linear motion guide rail includes 2 x 39.4 in/1000 mm length SBR20 guide railsLokkr 
Creality Upgraded Ender-3 Linear Rail Guide Kit MGN12 320mm - High Precision, High Speed Printing, and Long Service Life ➤High Precision Printing: The linear guide rail with high rigidity and high stability, which can maintain more excellentLokkr Creality Upgraded Ender-3 Linear Rail Guide Kit MGN12 320mm - High Precision, High Speed Printing, and Long Service Life ➤High Precision Printing: The linear guide rail with high rigidity and high stability, which can maintain more excellentBadafaci 
Badafaci MGN12C Linear Motion Slide Block, Bearing Steel, Smooth Sliding, High Load Capacity for Wind Power and Solar En [High Positioning Accuracy] MGN12C slide block delivers precise movement with automatic centering for μm level accuracy.NDNCZDHC NDNCZDHC D30 Round Flange Linear Ball Bearing, 30mm Base Shaft Support Linear Bearing Linear Motion Products Good Work Stability: The round flange linear bearing ensures low friction and high accuracy during high-speed rotation,Jectse 2Pcs 8mm Linear Rod, Linear Motion Shaft,Stainless Steel Cylinder Rail Linear Shaft,for Linear Motion, Automatic Machine This guide rod is for linear motion, automatic machinery, injection molding machine, etcMulti-Wits Linear Motion Kit, Linear Motion Products Set with 8mm Rod Shaft Guide Screw Support Bearing Couplings for 3D Printer En Low Noise and High Precision: This linear motion kit features 304 stainless steel optical shafts and steel linear bearinShanQuilyx Linear Motion Kit, Linear Motion Products Set with 8mm Rod Shaft Guide Screw Support Bearing Couplings for 3D Printer En Low Noise and High Precision: Featuring 304 stainless steel optical shafts and steel linear bearings, this linear motionViaGasaFamido ViaGasaFamido 12V Power Linear Motion Products 750N Stroke 150-700Mm Linear Actuator Hub Electric Motor Bracket Industri The movable push rod is an electric drive device that converts the motion of the motor into the linear reciprocating motVEVOR VEVOR Linear Actuator 12V, 16 Inch High Load 330lbs/1500N Linear Actuator, 0.19"/s Linear Motion Actuator with Mounting Precision Motion Control: VEVOR linear actuator offers precise position control with 0.19"/s stable speed and 330lbs higCHICIRIS CHICIRIS Bearing Steel Linear Shaft, 6mm Diameter Round Rod for Linear Motion and Automatic Machinery, with High Precisi [Smooth Rust Resistant Surface] The surface of this linear shaft is meticulously polished to a smooth finish providing eoutdoorm Linear Motion Bearing Cylinder Optical Axes Slider Test Frame Spare ID 8mm OD 15mm LM8UU Smooth Movement Low Friction Cy [SMOOTH MOVEMENT, LOW FRICTION]: Linear bearings ensure smooth movement and low friction with interchangeability, standaVEVOR VEVOR Linear Actuator 12V, 12 Inch High Speed 0.55"/s Linear Actuator, 220lbs/1000N Linear Motion Actuator with Mounting Fast & Efficient Stroke Adjustment: Lift or lower effortlessly with VEVOR linear actuator, moving at a swift 0.55"/s. PeNDNCZDHC NDNCZDHC 2PCS Linear Motion Bearing Set, 20mm Inner Diameter 80mm Length LM20UUOP Linear Ball Bearing Operational Traits: The Linear Motion Bearing, part of Bearing Set systems, operates with low noise and small friction,Pyhodi Linear Bearing, ABS Linear Motion Products for 3D Printer for Engineer CHICIRIS CHICIRIS Bearing Steel Linear Shaft, 6mm Diameter Round Rod for Linear Motion and Automatic Machinery, with High Precisi [Smooth Rust Resistant Surface] The surface of this linear shaft is meticulously polished to a smooth finish providing eVEVOR VEVOR Linear Actuator 12V, 18 Inch High Load 330lbs/1500N Linear Actuator, 0.19"/s Linear Motion Actuator with Mounting Precision Motion Control: VEVOR linear actuator offers precise position control with 0.19"/s stable speed and 330lbs higViaGasaFamido ViaGasaFamido Slide Linear Stage 2-axis Ball Manual Sliding Table Precise Guide Platform 200 Mm Hub Linear Motion Produc Hand wheel realizes the manual control of the sliding table with simple operation. The lock is turned and locked by theViaGasaFamido ViaGasaFamido Slide Linear Stage 2-axis Ball Manual Sliding Table Precise Guide Platform 200 Mm Hub Linear Motion Produc Hand wheel realizes the manual control of the sliding table with simple operation. The lock is turned and locked by theMarhynchus Marhynchus Linear Rail Shaft Bracket, 2Pcs Shaft Support Flange, Linear Motion Products Motion Guides Mount Horizontal B The bracket is made with chrome‑plated process, has good and can be used for a long timeNAMOARLY NAMOARLY 2pcs Flange Bearing Linear Ball Bearing for Printer DIY Parts Practical Motion Ball for Printer Assembly Circular flange linear ball bearings:small size, easy to carry and store, easy to use, with ,Universal Nickel Plating BeGeneric Electric Linear Rail Guide 200mm Ballscrew SFU1605 Slide Stage Load 250kg Nema23 Motor Base for DIY CNC Z Axis, Linear M High-quality Premium Aluminum Construction: Crafted from high-quality aluminum alloy, ensuring long-lasting performanceLrocaoai 12 x SBR12UU 12mm Aluminum Linear Motion Router Bearing Block, Silver It is used for the design of linear motion productsAuoeer Bearing Guide Support and SCS8UU Bearing Block CNC Parts 200mm Linear Rail Shaft Rod Linear Motion Products Good wear resistance and strength, high accuracy, hard to rust.CHICIRIS CHICIRIS Bearing Steel Linear Shaft, 6mm Diameter Round Rod for Linear Motion and Automatic Machinery, with High Precisi [Smooth Rust Resistant Surface] The surface of this linear shaft is meticulously polished to a smooth finish providing eVEVOR VEVOR Linear Actuator 12V, 10 Inch Heavy Duty 1320lbs/6000N Linear Actuator, 0.19"/s Linear Motion Actuator with Mountin Heavy-Duty Applications: VEVOR heavy duty linear actuator boasts 1320lbs/6000N powerful torque output, perfect for indusVEVOR VEVOR Linear Actuator 12V, 8 Inch Heavy Duty 1320lbs/6000N Linear Actuator, 0.19"/s Linear Motion Actuator with Mounting Heavy-Duty Applications: VEVOR heavy duty linear actuator boasts 1320lbs/6000N powerful torque output, perfect for indusVEVOR VEVOR Linear Actuator 12V, 4 Inch High Load 330lbs/1500N Linear Actuator, 0.19"/s Linear Motion Actuator with Mounting B Precision Motion Control: VEVOR linear actuator offers precise position control with 0.19"/s stable speed and 330lbs higViaGasaFamido ViaGasaFamido 12V Power Linear Motion Products 750N Stroke 150-700Mm Linear Actuator Hub Electric Motor Bracket Industri The movable push rod is an electric drive device that converts the motion of the motor into the linear reciprocating motSOLUSTRE SOLUSTRE Self Aligning Mounted Support Bearings Zinc Alloy Pillow Block Flange Bearings Center Support for Linear Motion Robust Zinc Alloy Construction: Crafted from zinc alloy, this bearing seat ensures strong support and reliable performanZoeyilan Linear Motion Ball Slide ID13mm Aluminum Alloy Low Noise Corrosion Bearing Slide Block for Various Machinery [INCREASED SPEED AND ACCURACY] Main Application: Boosts your machine's movement speed while maintaining precise rotationBognajin 10Pcs 3D Printing Linear Motion Bearing Kit, Alloy Steel LM13UU Bearings, Low Friction Coefficient, High Speed and Low N HIGH QUALITY MATERIAL: Made of alloy steel, our 3D printing linear motion bearings are strong, , and safe for a wide ranZyjGaliliad Linear Guide Rail 400mm, Linear Motion Slide Rail with Extension Slider Bearing Steel for 3D Printer CNC Machine, High P High Precision Positioning: This linear guide rail 400mm features accurate bearing steel and an automatic centering funcSorandy Sorandy Linear Motion Products Protective Aluminum 15mm Stroke for Ventilation Facilities 12V (with Bracket) [COMPREHENSIVE PROTECTION] Designed with over current, short circuit, overload, and over voltage protection for safety.Pomya Pomya Linear Motion Products 150N Aluminum Alloy Mini Actuator for Ventilation Facilities 12V (with Bracket) [SMOOTH SURFACE] Feel the satisfaction of a smooth, burr-free surface for optimal user experience.OSOLADY OSOLADY Sm0420S-1 Miniature Electromagnet Solenoid Actuator 4Mm Push Pull Linear Motion Metal Electronic Parts 3Pcs for Push-pull mini electromagnet solenoid--push pull type, open frame, linear motion, plunger spring return, dc solenoid eleCryfokt Cryfokt 12V Mini Electric Linear Actuator, 200mm Stroke 150N Thrust 4mm/s Speed Linear Actuator Motor Linear Motion Actu Automatic Lifting: This electric linear actuator has an end limit switch, which will automatically lift when the deviceHohitto Hohitto HGH25CA Slider Block, 2pcs HGH25CA Square Type Bearing Carriage Slider Block adapted to HGR25 Linear Motion Rail HGH25CA Slider Block is made of high quality bearing steel, not easy to damage, sturdy and durable;ViaGasaFamido Miniature Linear Motion Rail Guide LML9B 9mm Slide Rail Compact Size and Lightweight 4-Point Design for Industrial Autom [Versatile applications] widespread in automatic devices, precision measuring tools and machines that require precise liOdorkle Odorkle 1Pcs 15mm 500mm Round Steel Rod, Bar Rod, Bar Linear Motion Guides Linear Motion Products Plated Carbon Harden C Simple design, material,high temperature preheat treatment,accurate outer hole size,VEVOR VEVOR Linear Actuator 12V, 6 Inch High Speed 0.55"/s Linear Actuator, 220lbs/1000N Linear Motion Actuator with Mounting Fast & Efficient Stroke Adjustment: Lift or lower effortlessly with VEVOR linear actuator, moving at a swift 0.55"/s. PeFolanda Micro Linear Actuator, 2" Stroke Small Electric Linear Actuator, 12V DC Mini Actuator Motor for Home Intelligent Range H Mini Electric Linear Actuator can be used in agricultural machinery, construction, cleaning and sweeping vehicles, shipsLokkr Lokkr 2020 V Aluminum Extrusion, 4PCS 20CM Thickened Heavy Duty European Standard Anodized Extruded Aluminum Profile Lin Durable & Heavy-Duty Construction: Crafted from premium aluminum alloy with a European 2020V extrusion, this thickened l14% Off Bewinner DC24V Electric Mini Actuator with Wing, 30mm Stroke Linear Motion Actuator for Robot Sweep Machine Machinery Sturdy Construction: Made of excellent aluminum and ABS plastic, this linear actuator is sturdy and stylish. It featuresViaGasaFamido MGN12H-150-1R 150mm Miniature Linear Guide Rail with Widened Slider for 3D Printer Upgrades CNC Machine Parts High Preci Two -row ball cycle design, the angle of the ball track is 45 degrees to achieve the optimization effect.Cabilock Cabilock 2pcs Plated Flange Linear Ball Bearings Lmkuu Printer CNC Machine Bearings Steel Material for Flange bearing:the excellent workmanship of our product will bring you a ,Flange Linear Ball BearingsBaxnore Baxnore Electric Micro Linear Actuator, 150N Aluminum Alloy Linear Motion Actuator, Versatility Linear Motion Products, Protection: This mini linear actuator is equipped with multiple safety features, including overcurrent, short circuit, oBaxnore Baxnore Electric Micro Linear Actuator, 150N Aluminum Alloy Linear Motion Actuator, Versatility Linear Motion Products, Protection: This mini linear actuator is equipped with multiple safety features, including overcurrent, short circuit, oBowyTrading Linear Motion Kit Rod Shaft Guide Screw Support Bearing Couplings 3D Printer Power Transmission Products Set LOW NOISE AND WEAR RESISTANCE: Linear guide is made of 304 stainless steel, linear bearing is made of steel, more durablVBNCUUIOPO VBNCUUIOPO Linear Motion Rod with Linear Motion Bearing SCS8UU and LM8UU Linear Bearing Set 10 Pieces 8mm Linear Motion VEVOR VEVOR Linear Actuator 12V, 12 Inch High Load 330lbs/1500N Linear Actuator, 0.19"/s Linear Motion Actuator with Mounting Precision Motion Control: VEVOR linear actuator offers precise position control with 0.19"/s stable speed and 330lbs higAocet Linear Actuator 12V, Stroke - 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm Heavy Duty Electric Linear Moti 【Heavy Duty】Electric putter, also known as push rod motor, electric cylinder and linear actuator. The same characteristiAuoeer Linear Motion Rod with SCS8UU Linear Motion Bearing and LM8UU Linear Bearings Set 10pcs 8mm Linear Motion Products Great for linear motion on cnc and other applications.YDuupxe YDuupxe 8mm Linear Shaft, Chrome Plated Steel Guide Cylinder, 2PCS Set for Smooth Motion in 3D Printers (300mm) [High Precision Motion]Designed for enhanced accuracy, these linear shafts ensure smooth operation in 3D printers.Auoeer Linear Actuator Motor Mounting Bracket Linear Motion Products Tools With reliable , sensitive and stable operation. Good environmental adaptability.Lockmaner Lockmaner 4pcs LM8UU 8x15x24mm Double Side Rubber Seal Linear Motion Ball Bearing Bushing These ball bearing are fitted with two rubber dust sealed to prevent ingress of dirt, water and foreign matter.Fdit Linear Guide Rail, Precision Bearing Steel Slide Rail for 3D Printers, CNC & Miniature Equipment, High Load Capacity & μ Good Compatibility: This sliding guide is ideal for CNC machine tools, injection molding machines, 3D printers, and anyXiuganpo Xiuganpo Linear Sliding Block for CNC Machines, High Precision Steel Rail, Smooth Linear Motion Product for Automated Ma [BEARING STEEL] ensures durability and wear, providing long-lasting performance.TOCTUS TOCTUS OUKEJNM Telescopic Motor Rocker Arm for Linear Motion Actuator, DIY Rocker Lever Reciprocating Motor Crankshaft A ▶Made of steel and stainless steel, good hardness, corrosion resistance, durable.Odorkle Odorkle 12mm Stainless Steel Rod Linear Shaft Motion Rail Bearing 1pc Bearing Steel Cylinder G6 Grade 200mm 300mm 400mm [PREMIUM BEARING STEEL CONSTRUCTION] Crafted from bearing steel this 12mm linear rod offers exceptional strength and durAuoeer 8mm Square Flange Type Straight Line Linear Bearing LMK8UU Linear Motion Products These bearings are pre-lubricated with grease.VEVOR VEVOR 12V Linear Actuator, 250mm Stroke 15mm/s High-Speed 1000N Linear Motion Actuator - with IP54 Protection & Mounting Efficient Stroke Adjustment: Moving swiftly at 0.6 inch/s, VEVOR 12V linear actuator is perfect for frequent height adjuaikoolwer aikoolwer Linear Actuator 12V Electric Heavy Duty 3000N Thrust 150mm Speed 5mm/s Linear with Controller for RV Industria Package Includes: 1 linear actuator, 2 brackets, 1 switch, 4 connectors, and mounting hardwareVEVOR VEVOR 12V Linear Actuator, 1016mm Stroke IP65 Waterproof Linear Actuator, 3000N 5mm/s Motion Actuators with Mounting Bra IP65 Superior Protection: Rated IP65 for dust and water resistance, VEVOR's 12V linear actuator is suitable for use in oFafeicy Fafeicy 25H Ballscrew Nut Housing Ball Screws Linear Motion Products Mount Bracket Holder for SFU32053210 Ball Screw Nut This ballscrew nut bracket is adopted of aluminum material, sturdy andCryfokt Cryfokt Creativity Upgrade Y axis Linear Rail Guide Kit, Suitable for 3, Pro, 4, Ender3, Ender3Pro V2, Ender3S1, Ender3S [ Material] Crafted from high carbon steel, these rails boast exceptional wear , hardness, and stability, delivering uniVEVOR VEVOR Linear Actuator 12V, 14 Inch Heavy Duty 1320lbs/6000N Linear Actuator, 0.19"/s Linear Motion Actuator with Mountin Heavy-Duty Applications: VEVOR heavy duty linear actuator boasts 1320lbs/6000N powerful torque output, perfect for indusJspondivague Linear Motion Guide Rod Shaft Kit with T8x8 Lead Screw, SC8UU Sliding Bearing Block, Flexible Shaft Coupling for 3D Prin High Precision Motion: This linear motion guide rod shaft kit delivers smooth, low-friction movement with high trajectorAuoeer 20mm Open Linear Ball Bearing Linear Bushing for CNC LM20UUOP Linear Motion Products Linear bearing ball cage, hardened coat of both ends ring.Jspondivague Linear Motion Guide Rod Shaft Kit with T8x8 Lead Screw, SC8UU Sliding Bearing Block, Flexible Shaft Coupling for 3D Prin High Precision Motion: This linear motion guide rod shaft kit delivers smooth, low-friction movement with high trajectorJspondivague Linear Guide Rail 400mm, Linear Motion Slide Rail, Low Friction Bearing Steel Micro Motion Slide for 3D Printer CNC Mach Low Friction Performance: This linear guide rail 400mm features high-quality bearing steel construction that ensures minChangor Changor 6mm Diameter Durable Bearing Steel Cylinder Rail Linear Shaft Straight Round Rod for Linear Motion, High Precisi [HIGH-QUALITY MATERIAL] Made of durable bearing steel, this 6mm linear rod is sturdy and resistant to rust and corrosionYDuupxe YDuupxe X Axes Linear Rail High Carbon Steel 3D Printer Guide Rail Linear Motion for 3 Pro 4 with Sliding Block Accessor [Wide Compatibility] This x axes linear guide rail is designed to be compatible with 3 pro and 4 3d printers ensuring seSorandy Sorandy V Groove Ball Bearings, V Groove Pulley V623ZZ Linear Motion Bearings 20Pcs Carbon Steel Double Shielded with 1. [Precision V Groove Design] Featuring a 1.4mm deep v groove these bearings are engineered to ride seamlessly on rails orBadafaci Badafaci 2PCS 8mm Linear Shaft Steel Linear Rod Chrome Plated Motion Guide Cylinder High Accuracy Wear Resistant for 3D [Includes 2pcs for Value] Each package contains two 8mm linear shafts offering great value for your money. with standardAuoeer Stroke 200mm Linear Actuator CNC Linear Motion Lead Screw Slide Stage with 42 Stepper Motor Linear Motion Products Tools -Horizontal load 56KG, vertical (pull) load 15KG.Fafeicy Fafeicy 2Pcs 1000mm Linear Slide Rail Shaft 4Pcs Bearing Block Slide Rails Linear Motion Products Fully Support Shaft silver plating treatment, beautiful anti-, hardness can as high as HRC62, moreYDuupxe YDuupxe 2PCS 8mm Linear Shaft, Chrome Plated Steel Motion Guide Cylinder with High Accuracy, for 3D Printer Parts (200mm [ Material] These 8mm linear shafts are crafted from premium steel with a durable chrome plating that provides exceptionBadafaci Badafaci 2PCS 8mm Linear Shaft Steel Linear Rod Chrome Plated Motion Guide Cylinder High Accuracy Wear Resistant for 3D [Includes 2pcs for Value] Each package contains two 8mm linear shafts offering great value for your money. with standardRASTKY RASTKY High Accuracy Sliding Table Linear Rail Stage Cross 8080mm - Manual Stage Sliding Table with Linear Motion Produc Durable Material: ---- The Manual Linear Stages is made of aluminum alloy material with anodized surface, ensuring highYDuupxe YDuupxe 2PCS 8mm Linear Shaft, Chrome Plated Steel Motion Guide Cylinder with High Accuracy, for 3D Printer Parts (300mm [ Material] These 8mm linear shafts are crafted from premium steel with a durable chrome plating that provides exceptionZDETGU ZDETGU 6mm Diameter Bearing Steel Linear Cylinder Rail Shaft for Motion and (300mm) Durability and Strength: Designed for linear motion and automatic machinery, this rod is made with robust bearing steelViaGasaFamido ViaGasaFamido Slide Linear Stage 2-axis Ball Manual Sliding Table Precise Guide Platform 200 Mm Hub Linear Motion Produc Hand wheel realizes the manual control of the sliding table with simple operation. The lock is turned and locked by theAuoeer Linear Rail Shaft Rod with Bearing Guide Support and Bearing Block8mm x 500mm Linear Motion Products Good wear resistance and strength, high accuracy, hard to rust.ZyjGaliliad 10 Pcs LM10LUU Linear Bearings, Alloy Steel Linear Motion Ball Bearings, High Precision Low Friction LM10UU Bearing Set High Precision Performance: These LM10LUU linear bearings deliver exceptional trajectory accuracy and smooth motion thanFixFusion 4 pcs 30mm Hollow Linear Shaft 270mm Harden Chromed Linear Motion Shaft Rod for CNC Parts 4 pcs 30mm hollow linear shaft 270mm harden chromed linear motion shaft rod for CNC partsZDETGU ZDETGU 6mm Diameter Bearing Steel Linear Cylinder Rail Shaft for Motion and (500mm) Durability and Strength: Designed for linear motion and automatic machinery, this rod is made with robust bearing steelBadafaci Badafaci 2PCS 8mm Linear Shaft Steel Linear Rod Chrome Plated Motion Guide Cylinder High Accuracy Wear Resistant for 3D [Includes 2pcs for Value] Each package contains two 8mm linear shafts offering great value for your money. with standardYDuupxe YDuupxe 2PCS 8mm Linear Shaft, Chrome Plated Steel Motion Guide Cylinder with High Accuracy, for 3D Printer Parts (400mm [ Material] These 8mm linear shafts are crafted from premium steel with a durable chrome plating that provides exceptionAuoeer 8mm Zinc Alloy Bore Diameter Pillow Block Mounted Ball Bearing KP08 Linear Motion Products Durable with high precisionZDETGU ZDETGU 6mm Diameter Bearing Steel Linear Cylinder Rail Shaft for Motion and (400mm) Durability and Strength: Designed for linear motion and automatic machinery, this rod is made with robust bearing steelZyjGaliliad MGN12H Black Miniature Linear Rail Guide 12mm Width Slide Block, Linear Motion Rail with 4 - Point Contact Design, Preci 4-Point Contact Load Support: The MGN12H black miniature linear rail guide features a 4-point contact design that evenlyYDuupxe YDuupxe 2PCS 8mm Linear Shaft, Chrome Plated Steel Motion Guide Cylinder with High Accuracy, for 3D Printer Parts (500mm [ Material] These 8mm linear shafts are crafted from premium steel with a durable chrome plating that provides exceptionBadafaci Badafaci 2PCS 8mm Linear Shaft Steel Linear Rod Chrome Plated Motion Guide Cylinder High Accuracy Wear Resistant for 3D [Includes 2pcs for Value] Each package contains two 8mm linear shafts offering great value for your money. with standardZyjGaliliad MGN12H Black Miniature Linear Rail Guide 12mm Width Slide Block, Linear Motion Rail with 4 - Point Contact Design, Preci 4-Point Contact Load Support: The MGN12H black miniature linear rail guide features a 4-point contact design that evenlyZyjGaliliad MGN12H Black Miniature Linear Rail Guide 12mm Width Slide Block, Linear Motion Rail with 4 - Point Contact Design, Preci 4-Point Contact Load Support: The MGN12H black miniature linear rail guide features a 4-point contact design that evenlyChangor Changor 6mm Diameter Durable Bearing Steel Cylinder Rail Linear Shaft Straight Round Rod for Linear Motion, High Precisi [HIGH-QUALITY MATERIAL] Made of durable bearing steel, this 6mm linear rod is sturdy and resistant to rust and corrosion