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10PCS 48inch1220mm T Slot 2020 Aluminum Extrusion Profile for 3D Printer and CNC DIY, High-Strength European Standard Extruded Aluminum Linear Rail Guide, Anodizing TechnologyBlack
US Store
TITGGI

10PCS 48inch1220mm T Slot 2020 Aluminum Extrusion Profile for 3D Printer and CNC ...
4.7

100+ bought

USD 97

VEVOR Linear Rail Slide SFC20-1000mm 2 PCS 39.4 in/1000mm SFC20 Guide Rails 4 PCS SC20 Slide Blocks 4 PCS Rail Supports Linear Rails and Bearings Kit for Automated Machines CNC DIY Project
US Store
VEVOR

VEVOR Linear Rail Slide SFC20-1000mm 2 PCS 39.4 in/1000mm SFC20 Guide Rails 4 PCS ...
4.7

100+ bought

USD 58

10PCS 48inch 2020 Aluminum Extrusion,T Slot Extruded Aluminum Rail | European Standard Anodized Black Linear Rail, for 3D Printer Laser Engraving Machine CNC Workbench DIY
US Store
LuckySlycyc

10PCS 48inch 2020 Aluminum Extrusion,T Slot Extruded Aluminum Rail | European ...
4.7

100+ bought

USD 99

2-Pack 8mm x 150mm Linear Motion Rods Shaft Guide for 3D Printer and DIY Craft Tool, Case Hardened Chrome, Diameter 8mm, 5/16" x 5.91"
US Store
Litoexpe

2-Pack 8mm x 150mm Linear Motion Rods Shaft Guide for 3D Printer and DIY Craft ...
4.7

100+ bought

USD 13

uxcell 2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver
US Store
uxcell

uxcell 2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block ...
4.6

50+ bought

USD 39

5% OFF
VEVOR Linear Rail Slide SBR16-1000mm 2 PCS and 4 PCS SBR16UU Slide Blocks Linear Guide Rail and Bearings Kit for Automated Machines DIY Project CNC Router Machines
US Store
VEVOR

VEVOR Linear Rail Slide SBR16-1000mm 2 PCS and 4 PCS SBR16UU Slide Blocks Linear ...
4.4

50+ bought

USD 59 62

Festool 578246 100-Year Limited Edition Guide Rail FS 1400/2-KP | 55" Track Saw Rail for TSC 55, TS 55, TS 75 Splinter-Free, Anti-Slip
US Store
Festool

Festool 578246 100-Year Limited Edition Guide Rail FS 1400/2-KP | 55" Track Saw ...
4.6

50+ bought

USD 187

4Pack 2020 Aluminum Extrusion T-Slot 500mm Black Extruded Aluminum Profile 20x20 T-Slotted Framing European Standard Anodized Linear Rail for 3D Printer Accessories Parts
US Store
SeekLiny

4Pack 2020 Aluminum Extrusion T-Slot 500mm Black Extruded Aluminum Profile 20x20 ...
4.4

50+ bought

USD 37

uxcell MGN9 100mm Linear Guide Rail with MGN9C Sliding Carriage Block and Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Black
US Store
uxcell

uxcell MGN9 100mm Linear Guide Rail with MGN9C Sliding Carriage Block and Plastic ...
4.5

50+ bought

USD 18

Guide Rail Adapter for Dewalt DCW600B and DWP611 Routers - Make Straight and Accurate Cuts Easily - Made in USA Fixed Base
US Store
HuttonTOOLS

Guide Rail Adapter for Dewalt DCW600B and DWP611 Routers - Make Straight and ...
4

50+ bought

USD 30

VEVOR Linear Rail, 2 PCS SBR 20-2200mm, Linear Guideway Rail, and 4 PCS SBR20UU Square Type Carriage Bearing Blocks, Linear Guide Rails for Automated Machines Equipments and DIY CNC Routers
US Store
VEVOR

VEVOR Linear Rail, 2 PCS SBR 20-2200mm, Linear Guideway Rail, and 4 PCS SBR20UU ...
4.6

50+ bought

USD 164

uxcell 2pcs MGN7 150mm Linear Guide Rail with 2pcs MGN7H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver
US Store
uxcell

uxcell 2pcs MGN7 150mm Linear Guide Rail with 2pcs MGN7H Sliding Carriage Block ...
4

50+ bought

USD 29

2Pcs 10mm x 300mm 0.394 x 11.81 inches Vigorous Linear Motion Rods, Case Hardened Chrome Shaft Linear Rail Guide Shaft for 3D Printer, DIY, CNC - Metric h8 Tolerance
US Store
Vigorous

2Pcs 10mm x 300mm 0.394 x 11.81 inches Vigorous Linear Motion Rods, Case Hardened ...
4.8

50+ bought

USD 21

MGN12H Black Linear Guide Rail 400mm with MGN12H Bearing Steel Black Carriage Block,for Ender 3, Corexy, Tronxy 3D Printers Upgrades and CNC Machine
US Store
BEVDICNC

MGN12H Black Linear Guide Rail 400mm with MGN12H Bearing Steel Black Carriage ...
4.8

USD 30

4PCS 400mm Black T Type 2020 Aluminum Extrusion Profile | European Standard, Anodized, Linear Rail Guide, For 3D Printer Parts and CNC Machine
US Store
Hicavar

4PCS 400mm Black T Type 2020 Aluminum Extrusion Profile | European Standard, ...
4.3

USD 24

Genuine HIWIN HGH25CA Linear Guideway
US Store
Hiwin

Genuine HIWIN HGH25CA Linear Guideway
4.4

USD 85

Manual Linear Stage XYZR-Axis 4040mm LTP40-LM
US Store
PLPFUDVDZZ

Manual Linear Stage XYZR-Axis 4040mm LTP40-LM

USD 1107

VEVOR Linear Guide Rail, 2Pcs HGR20-1500 mm, Linear Slide Rail Shaft Optical Axis with 1Pcs RM1605-1500 mm Ballscrew, BF12/BK12 Kit, 4 Blocks, Square, Pre-Drilled Holes, for CNC Routers Lathes Mills
US Store
VEVOR

VEVOR Linear Guide Rail, 2Pcs HGR20-1500 mm, Linear Slide Rail Shaft Optical Axis ...
5

USD 159

2Pack 2080 T Slot Aluminum Extrusion 1000mm Black Extruded Aluminum Profile 20x80 T-Slotted Framing European Standard Anodized Linear Rail for 3D Printer Accessories Parts
US Store
SeekLiny

2Pack 2080 T Slot Aluminum Extrusion 1000mm Black Extruded Aluminum Profile 20x80 ...
4.4

USD 81

uxcell MGN9 300mm Linear Guide Rail with MGN9C Sliding Carriage Block and Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Black
US Store
uxcell

uxcell MGN9 300mm Linear Guide Rail with MGN9C Sliding Carriage Block and Plastic ...
4.1

USD 25

[2 Pack] MGN12 500mm Linear Sliding Rail Guide with 2pcs MGN12H Linear Bearing Sliding Carriage Block for 3D Printer and CNC Machine
US Store
BEVDICNC

[2 Pack] MGN12 500mm Linear Sliding Rail Guide with 2pcs MGN12H Linear Bearing ...

USD 69

Bishop-Wisecarver UT2WPAXS UtiliTrak SW Series Wheel Plate Assembly, Size 2, 3-Wheel, 90 Degree Vee, Carbon, Seal/Shield
US Store
Bishop-Wisecarver

Bishop-Wisecarver UT2WPAXS UtiliTrak SW Series Wheel Plate Assembly, Size 2, ...

USD 487

40120 Aluminum Extrusion 31.1 inch / 790mm Length T Slot Silver 1 Pack, Extruded Aluminum 40mm x 120mm 40 Series T Type Profiles Anodized European Standard Linear Rail Frame
US Store
Coavoo

40120 Aluminum Extrusion 31.1 inch / 790mm Length T Slot Silver 1 Pack, Extruded ...
5

USD 387

Fully Enclosed Linear Rail Guide Ballscrew SFU1605 with Square Linear Rails with NEMA23 Stepper Motor, 150mm Effective Stroke Length for CNC Router Parts Size150mm
US Store
Zeberoxyz

Fully Enclosed Linear Rail Guide Ballscrew SFU1605 with Square Linear Rails with ...

USD 176

RATTMMOTOR DM556S Stepper Motor Driver+EBX1605 CNC Linear Stage Actuator, Double Optical Axis Linear Slide Rail&1605 Ball Screw&Nema23 Stepper Motor 300mm with DM556S
US Store
RATTMMOTOR

RATTMMOTOR DM556S Stepper Motor Driver+EBX1605 CNC Linear Stage Actuator, Double ...

USD 142

Linear Motion Shaft Rod Guide D 12mm x L 6.3 inch / 160mm 2Pcs, Hollow Rod D 12mm Inner Hole 6mm Smooth Steel Case Hardened Chrome Plated for 3D Printer, CNC - h7 Tolerance
US Store
Mssoomm

Linear Motion Shaft Rod Guide D 12mm x L 6.3 inch / 160mm 2Pcs, Hollow Rod D 12mm ...

USD 119

MGN9 Linear Rail 350mm 13.78" 2PCS MGN9 Miniature Linear Motion Slide Rail + 2PCS MGN9H 9mm Linear Sliding Bearing Carriage Block Black for 3D Printer and CNC Machine
US Store
Coavoo

MGN9 Linear Rail 350mm 13.78" 2PCS MGN9 Miniature Linear Motion Slide Rail + 2PCS ...
4

USD 69

16mm Chrome Linear Rod L 11.81 inch /300mm + Block Bearings SCS16UU + Aluminum Rail Support SK16, 16mm Smooth Steel Linear Motion Rail Shaft Guide Set Kit with Anti-Collision Rubber Ring
US Store
Coavoo

16mm Chrome Linear Rod L 11.81 inch /300mm + Block Bearings SCS16UU + Aluminum Rail ...
5

USD 100

MR15 MGN15 350mm Miniature Rail Guide x 1 pcs + MGN15H Slider of Rail Guide x 1 pcs for Miniature Linear Motion
US Store
SenTECH

MR15 MGN15 350mm Miniature Rail Guide x 1 pcs + MGN15H Slider of Rail Guide x 1 pcs ...

USD 82

CNC Rails LMG15H-LMG25H LMG30H LMG15C-LMG25C LMG30C LMG15T LMG20T LMG25T LMG20 25 30LH LC, Linear Guide Block Carriage Color LMG30C
US Store
Pangocho

CNC Rails LMG15H-LMG25H LMG30H LMG15C-LMG25C LMG30C LMG15T LMG20T LMG25T LMG20 25 ...
5

USD 128

2 Pack 2020 V Slot Black Aluminum Extrusion 39.37 inch / 1000mm Length, Extruded Aluminum 20mm x 20mm 20 Series V Type Profiles Anodized European Standard Linear Rail Frame 2Pcs
US Store
Coavoo

2 Pack 2020 V Slot Black Aluminum Extrusion 39.37 inch / 1000mm Length, Extruded ...
4.8

USD 54

XYZ Linear Translation Stage, MPositioning T125XYZ-25RM10B 3 Axis Positioning Stage 25 mm Travel in XY and 10 mm in Z Large Area Platform
US Store
MPositioning

XYZ Linear Translation Stage, MPositioning T125XYZ-25RM10B 3 Axis Positioning Stage ...

USD 853

HIWIN Linear Block HGW45CC Linear Carriage/Guide/Rail/Slider CNC Parts Bearing Linear Bearing Flange Heavy Load Blocks
US Store
THK

HIWIN Linear Block HGW45CC Linear Carriage/Guide/Rail/Slider CNC Parts Bearing ...

USD 177

Dnyta 4 Pcs 250mmm V Slot 2020 Aluminum Profiles Extrusion Frame European Standard Anodized Linear Rail for 3D Printer Parts and CNC Machine DIY Projects, Black
US Store
Dnyta

Dnyta 4 Pcs 250mmm V Slot 2020 Aluminum Profiles Extrusion Frame European Standard ...
5

USD 25

2 Pcs SBR20LUU SBR20 LUU 20mm Linear Bearing Motion Pillow Long Slide Block for 20mm Linear Guide Rail, Aluminum CNC Router Parts
US Store
Mssoomm

2 Pcs SBR20LUU SBR20 LUU 20mm Linear Bearing Motion Pillow Long Slide Block for ...
4.8

USD 49

LS40-LM 3 Axes Trimming Platform, Aluminum Alloy Manual Linear Stage Tuning Sliding Table, Wear Resist Manual Trimming Platform for Production Machinery
US Store
ANKROYU

LS40-LM 3 Axes Trimming Platform, Aluminum Alloy Manual Linear Stage Tuning Sliding ...

USD 215

HIWIN Linear Block QHW45HC Linear Carriage/Guide/Rail/Slider CNC Parts Bearing Linear Bearing Square Heavy Load Blocks
US Store
THK

HIWIN Linear Block QHW45HC Linear Carriage/Guide/Rail/Slider CNC Parts Bearing ...

USD 261

Genuine HIWIN MGN15H Linear Guideway
US Store
Hiwin

Genuine HIWIN MGN15H Linear Guideway

USD 66

2060 Aluminum Extrusion T Slot 1000mm Long Black 1 Pack, Extruded Aluminum Profile T Slot 20 Series European Standard Anodized Linear Rail 20 x 60 39.37" 1Pcs
US Store
Kwweeoo

2060 Aluminum Extrusion T Slot 1000mm Long Black 1 Pack, Extruded Aluminum Profile ...
5

USD 61

uxcell 2pcs MGN12 100mm Linear Guide Rail with 2pcs MGN12H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Black
US Store
uxcell

uxcell 2pcs MGN12 100mm Linear Guide Rail with 2pcs MGN12H Sliding Carriage Block ...
3.6

USD 30

uxcell 2pcs MGN12 150mm Linear Guide Rail with 2pcs MGN12H Sliding Carriage Block and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Black
US Store
uxcell

uxcell 2pcs MGN12 150mm Linear Guide Rail with 2pcs MGN12H Sliding Carriage Block ...
5

USD 36

Genuine HIWIN HGH20CA Linear Guideway
US Store
Hiwin

Genuine HIWIN HGH20CA Linear Guideway
1

USD 95

Z Axis Fully Enclosed Linear Module HL140A 140mm Dustproof Sliding Table Linear Stage for Nema23 Nema24 CNC Engraving Machine 200mm, SFS1620 for Stepper
US Store
LCRHLCNC

Z Axis Fully Enclosed Linear Module HL140A 140mm Dustproof Sliding Table Linear ...

USD 325

FAHKNS 10pcs V Slot 2020 Aluminum Extrusion European Standard 1220mm48" Length Anodized Linear Rail for 3D Printer Engraving Machine Workbench DIY Black
US Store
FAHKNS

FAHKNS 10pcs V Slot 2020 Aluminum Extrusion European Standard 1220mm48" Length ...
4.5

USD 111

QNK 5pcs 1220mm V Slot 2040 Aluminum Extrusion European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 48" Blue 2040 Aluminum Extrusion V Slot
US Store
QNK

QNK 5pcs 1220mm V Slot 2040 Aluminum Extrusion European Standard Anodized Linear ...
4.2

USD 97

HG15 Linear Slider Rail, HG15 Rail 2pcs Length 2300mm/90.55inch with 4pcs HGH15CA Square Bearing Slider Block, High Assembly CNC Linear Guide Kits for CNC Machines.
US Store
LD-Teemm

HG15 Linear Slider Rail, HG15 Rail 2pcs Length 2300mm/90.55inch with 4pcs HGH15CA ...

USD 728

2040 Aluminum Extrusion 39.37 inch / 1000mm Length V Slot Silver 4 Pack, Extruded Aluminum 20mm x 40mm 20 Series V Type Profiles Anodized European Standard Linear Rail Frame 4Pcs
US Store
Coavoo

2040 Aluminum Extrusion 39.37 inch / 1000mm Length V Slot Silver 4 Pack, Extruded ...
4.8

USD 387

Linear Rail/Guide Rod HSR20 Length Approx.800mm/31.5inch Linear Guideway Rail + Square Type Carriage Bearing Block HSR20CR x 2 Pcs, for DIY CNC Routers Lathes Mills
US Store
SenTECH

Linear Rail/Guide Rod HSR20 Length Approx.800mm/31.5inch Linear Guideway Rail + ...

USD 254

Shop Linear Motion Guide Online from Ubuy Puerto Rico

We remember the frustration of working with machinery that stutters, shakes, or just won't stay on track. It’s tough to achieve perfection when your equipment is fighting against friction. We believe that smooth, repeatable movement is the heartbeat of any great build. You need linear motion guide rails that turn jerky transitions into effortless gliding. Install these rails for a custom project or swap out linear slide guides to regain that factory-new precision. These parts make your machines feel alive. These linear motion bearings and linear motion accessories are built to last. They handle heavy loads without breaking a sweat.

We offer a large selection of linear motion components from top brands to help you build or repair with total confidence. Explore the full collection and have your precision parts delivered right to your door with just a few clicks.

Score the Best Deals and Offers on Linear Motion Guides

Stop the stutter and discover incredible deals and offers on a wide variety of linear motion guides to help you master the art of precision movement. Here are the various types of linear motion components that you can purchase online.

Precision Profile Rail Guides

Rail guides are like the VIP lanes for your machinery. These Linear Motion Products use square-shaped rails and recirculating balls to handle massive weights without flinching. Their "gothic arch" design ensures the carriage stays locked in, giving you pinpoint accuracy even at high speeds. 

They are the go-to for CNC machines and 3D printers where "close enough" just doesn't cut it. Why struggle with shaky movements? These rails keep everything on the straight and narrow, so your project finishes exactly how you planned it. Listen to the user sharing his experience with these rail guides while working on his project.  

Currently building a 2.4 (Siboor) and all of the rails have a kind of dull "popping" feel to them while moving the carriage. 

No noise and can still easily move the carriage with one finger from end to end. I can only feel the clicking/popping through my fingers.

Source: r/VORONDesign (Reddit)

Round Shaft Systems

If you need something a bit more forgiving and poker-friendly, the round shafts are your best bet. These systems rely on linear motion bearings that slide over precision-ground rods. Their self-aligning design is a lifesaver if your mounting surface isn't perfectly flat. 

They are rugged, easy to install, and perfect for applications like lab equipment or packaging lines. They might look simple, but they are built to work hard in environments where other guides might get "cranky."

Heavy-Duty Roller Guides

When things get really heavy, it’s time to call in the rollers. These guides use cylindrical rollers in place of balls to distribute weight over a larger surface area. This design makes them incredibly stiff and ready for the most demanding power transmission equipment setups. 

They are often found in heavy manufacturing and large-scale automation where failure isn't an option. If your machine is doing some serious heavy lifting, these rollers provide the muscle to keep it gliding smoothly without breaking a sweat.

Select the Right Linear Motion Guide for Smooth Precision and Peak Performance

Can't find the right linear motion part for your project? We have sorted a wide selection of rails and bearings into clear categories to make your search easier. Browse the whole lineup and pick the ideal gear to get your equipment moving smoothly again.

Product Type

Common Applications

Key Brands

Precision Profile Rail Guides

* High-precision CNC machining centers

* Semiconductor manufacturing equipment

* Medical diagnostic and surgical robots

THK, NSK, HIWIN, IKO, Bosch Rexroth, MISUMI

Round Shaft Systems

* Laboratory automation and pick-and-place units

* Packaging machinery and food processing

* Cost-effective DIY 3D printers and scanners

THK, NSK, HIWIN, IKO

Heavy-Duty Roller Guides

* Heavy-duty metal cutting and grinding machines

* Plastic injection molding equipment

* Large-scale transport and automotive assembly

THK, NSK, HIWIN, IKO, Schneeberger

Miniature Linear Guides

* Handheld electronic devices and inspection tools

* Laboratory fluid handling systems

* Compact optical and laser positioning gear

THK, NSK, HIWIN, IKO, PMI

Cross-Roller Guides

* High-rigidity metrology and measuring tables

* Precision micro-machining tools

* High-load finite stroke applications

THK, NSK, HIWIN, IKO, Schneeberger


Also, check out the useful range of industrial supplies to grab those high-performance tools and maintenance kits that make every task feel effortless.

Frequently Asked Questions About Linear Motion Guide

  • What are Linear Motion Guide Rail Replacement Parts?

    These include carriage blocks, rails, and accessories like seals or end caps, used to restore precision and smooth motion in worn-out machinery.

  • Where Can I Buy Linear Motion Guide Rail Replacement Parts Online?

    You can purchase high-quality components from major online shopping platforms like Ubuy or directly from authorised manufacturers and distributors.

  • What Materials are Linear Guide Replacement Rails Made From?

    Replacement rails are typically manufactured from high-strength carbon steel, stainless steel, or aluminum alloys, often featuring hardened surfaces for maximum durability.

  • Do Linear Guide Replacement Parts Come Pre-Lubricated?

    Many blocks come with a factory coating of rust-preventative oil or standard grease, but manufacturers recommend applying specific lubrication before final installation.

  • How Often Should Linear Guide Rails and Blocks Be Replaced?

    The replacement frequency depends on usage. However, properly maintained systems can last 20,000 to 50,000 kilometers before showing significant wear or accuracy loss.