Linear Guides

Q: What is the difference between ball and roller linear guides?

Ball guides use recirculating balls and offer smooth motion, lower friction, and are suitable for most general automation applications. Roller guides use cylindrical rollers, providing 2–3 times higher load capacity and rigidity, ideal for heavy-duty machine tool axes.

Q: How do I select the correct preload for my application?

Light preload (Z0/Z1) provides minimal friction for low-load, high-speed applications. Medium preload (Z2) eliminates backlash and increases rigidity for most CNC and automation applications. Heavy preload (Z3) maximizes stiffness for high-precision machining but increases friction and heat generation.

Q: What accuracy grade should I specify?

N (Normal) for general automation. H (High) for standard CNC machines. P (Precision) for high-accuracy machining and CMM. SP (Super Precision) and UP (Ultra Precision) for semiconductor, optical, and metrology applications.

Q: What is the typical lead time for custom linear guides?

Standard catalog guides ship within 2–3 business days. Custom rail lengths and special accuracy grades typically ship within 1–2 weeks. Complete custom linear axes with ball screws may require 3–4 weeks.

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Cat	Products Name	Price
AMS-GE-LM-21	Linear Guide Block Size 35 Standard BA Dynamic 5500 kgf
AMS-GE-LM-22	Linear Guide Block Size 35 Standard BB Dynamic 5500 kgf
AMS-GE-LM-23	Linear Guide Block Size 35 Extended BAL Dynamic 6632 kgf
AMS-GE-LM-24	Linear Guide Block Size 35 Extended BBL Dynamic 6632 kgf
AMS-GE-LM-25	Linear Guide Block Size 45 Standard BA Dynamic 8387 kgf
AMS-GE-LM-26	Linear Guide Block Size 45 Standard BB Dynamic 8387 kgf
AMS-GE-LM-27	Linear Guide Block Size 45 Extended BAL Dynamic 10204 kgf
AMS-GE-LM-28	Linear Guide Block Size 45 Extended BBL Dynamic 10204 kgf

High-Rigidity Linear Guides for Precision Motion

AIMRSE linear guides provide smooth, accurate linear motion with high load capacity and long service life. Our portfolio includes profiled rail guides, miniature guides, and roller guides in standard sizes from 7 mm to 65 mm rail width. With accuracy grades from N (normal) to UP (ultra-precision) and preload options from light clearance to heavy preload, our linear guides meet the demanding requirements of machine tools, automation equipment, and precision measurement systems.

Every linear guide is manufactured with precision-ground raceways and matched ball or roller bearings to ensure smooth motion and consistent accuracy. We offer standard lengths up to 4,000 mm, custom end machining, and complete linear axis assemblies. Whether you need a single replacement guide or a complete multi-axis gantry system, our application engineers provide technical support from selection to installation.

Specify Your Linear Guide

Provide rail size, length, carriage type, and accuracy requirements for a custom quote.

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3D CAD models available for download.

7 – 65 mm Rail Width

Up to 200 kN Dynamic Load

N / H / P / SP / UP Accuracy Grades

Up to 4,000 mm Standard Length

Linear Guide Range & Technical Specifications

Select from our comprehensive lineup of profiled rail and miniature linear guides. Custom rail lengths and carriage configurations available.

Type	Rail Width (mm)	Carriage Style	Dynamic Load (kN)	Accuracy Grade	Key Features
Ball / Roller	15 – 65	Flanged, Square	8 – 200	N, H, P	High rigidity, 4-row ball/roller design, high moment capacity
Ball Recirculating	15 – 45	Flanged, Square	6 – 80	N, H, P	Balanced performance, wide range of standard sizes
Ball Recirculating	7 – 15	Standard, Wide	0.5 – 5	P, SP, UP	Compact, smooth motion, ideal for semiconductor and medical
Cylindrical Roller	25 – 65	Flanged	30 – 300	H, P, SP	Ultra-high rigidity, 2–3x load capacity of ball type
Ball Recirculating	15 – 35	Flanged, Square	6 – 40	N, H, P	Corrosion resistant, cleanroom and food-grade compatible
Extended Carriage	20 – 45	Flanged	12 – 90	N, H, P	Increased moment capacity, ideal for single-rail applications

Typical Applications by Industry

AIMRSE linear guides provide precise motion control across demanding industrial sectors.

High-rigidity roller linear guide rails for heavy-duty CNC machine tools

CNC Machine Tools

High-rigidity roller and ball guides for milling, turning, and grinding machine axes.

Semiconductor Equipment Linear Guides

Semiconductor & FPD

Miniature and stainless steel guides for wafer handling and inspection stages.

Factory Automation Linear Guides

Factory Automation

Standard ball guides for pick-and-place, packaging, and material handling.

Medical Equipment Linear Guides

Medical & Laboratory

Clean, low-noise guides for diagnostic imaging and robotic surgery systems.

3D Printer Linear Guides

Additive Manufacturing

Precision guides for high-speed 3D printer gantries and positioning axes.

Woodworking Linear Guides

Woodworking & Material Processing

Sealed guides with wipers for dusty environments in panel saws and routers.

Performance Validation & Field-Proven Reliability

We replaced the linear guides on our CNC machining centers with AIMRSE LG-R roller guides. The increased rigidity improved our surface finish quality and allowed us to increase feed rates by 20% without sacrificing accuracy. After 8,000 hours, the guides still meet P-class accuracy and show minimal wear.

Eeth**

20% faster feed rates, 8,000+ hrs accuracy

Our semiconductor wafer inspection stages require sub-micron repeatability. The AIMRSE LG-MN miniature guides with SP accuracy and light preload have consistently delivered ±0.5 µm positioning repeatability in our cleanroom environment. The smooth, low-friction motion is critical for our scanning process.

Cine**

±0.5 µm repeatability

Precision Manufacturing & Surface Engineering

AIMRSE linear guides are manufactured using advanced grinding, heat treatment, and quality control processes to ensure smooth, accurate motion and long service life.

Precision Rail Grinding
Raceways are profile-ground to micron-level tolerances, ensuring smooth ball/roller recirculation and consistent preload across the entire stroke length.
Induction Hardened Raceways
Rail and carriage raceways are induction hardened to 58–62 HRC for optimal wear resistance and fatigue life under high contact stresses.
Preload & Accuracy Classes
Multiple preload options (light clearance to heavy preload) and accuracy grades (N to UP) to match application stiffness and precision requirements.
Advanced Sealing & Lubrication
High-performance end seals and internal seals, backed by our industrial sealing expertise, and optional metal scrapers protect the recirculating elements.

Linear guide accuracy inspection Fig. 1. Laser interferometer measurement of linear guide running parallelism.

Custom Linear Axis & Gantry Engineering

Need a complete linear motion system beyond standard components? Our engineering team provides:

Custom Rail Lengths & Machining: Rails up to 6,000 mm with custom end machining and mounting holes
Parallel Rail Sets: Matched pairs for gantry and bridge applications with specified parallelism
Complete Linear Axes: Integrated precision ball screw, motor mount, and coupling in a precision-machined base
Multi-Axis Gantry Systems: Dual-drive gantries powered by direct-drive linear motors with synchronized control and cable management
CAD & Assembly Drawings: Complete 3D models and 2D documentation for seamless integration

Explore Custom Motion Systems →

Linear Guide Life Calculation & Selection Support

Proper selection is critical for reliability. Our application engineers provide:

Load & Moment Analysis: Calculation of equivalent dynamic load based on your application forces
Life Expectancy Calculation: L10 life estimation per ISO 14728-1 based on applied loads and duty cycle
Stiffness & Deflection Analysis: Prediction of elastic deformation under applied loads
Lubrication Recommendations: Grease or oil selection based on speed and environment
Installation Guidance: Recommended mounting tolerances and alignment procedures

Explore Engineering Support →

Frequently Asked Linear Guide Questions

What is the difference between ball and roller linear guides?

Ball guides use recirculating balls and offer smooth motion, lower friction, and are suitable for most general automation applications. Roller guides use cylindrical rollers, providing 2–3 times higher load capacity and rigidity, ideal for heavy-duty machine tool axes.

How do I select the correct preload for my application?

Light preload (Z0/Z1) provides minimal friction for low-load, high-speed applications. Medium preload (Z2) eliminates backlash and increases rigidity for most CNC and automation applications. Heavy preload (Z3) maximizes stiffness for high-precision machining but increases friction and heat generation.

Can you provide linear guides with custom rail lengths?

Yes. We can supply rails cut to your specified length, with custom end machining including reference edges, mounting holes, and dowel pin holes. Provide a drawing for a custom quote.

What accuracy grade should I specify?

N (Normal) for general automation. H (High) for standard CNC machines. P (Precision) for high-accuracy machining and CMM. SP (Super Precision) and UP (Ultra Precision) for semiconductor, optical, and metrology applications.

Do you offer stainless steel linear guides for cleanroom or washdown?

Yes. Our LG-S series features stainless steel rails and carriages with corrosion-resistant materials. They are suitable for cleanroom, food processing, and medical applications where cleanliness and corrosion resistance are required.

What is the typical lead time for custom linear guides?

Standard catalog guides ship within 2–3 business days. Custom rail lengths and special accuracy grades typically ship within 1–2 weeks. Complete custom linear axes with ball screws may require 3–4 weeks.

Specify Your Precision Linear Guide

From standard ball guides to high-rigidity roller guides and complete linear axes, our application engineers will help you select the optimal solution for your motion requirements. Provide rail size, carriage type, accuracy grade, and stroke length for a detailed quotation and 3D CAD model.