Guide Rail / Way: Height 15mm to 60mm

Component Specifications

Definition

A guide rail, also known as a way, is a precision-engineered linear motion component that provides a rigid, low-friction path for moving parts in machinery. It ensures accurate linear movement with minimal deviation, supporting loads while maintaining alignment in applications requiring high precision and repeatability. In air bearing and linear guide systems, it typically interfaces with carriages or sliders equipped with rolling elements (like balls or rollers) or air bearings to achieve near-frictionless motion.

Working Principle

Guide rails work by providing a hardened, ground track along which a carriage or slider moves. In linear guide systems, the carriage contains recirculating rolling elements (balls or rollers) that roll along the rail's raceways, reducing friction and enabling smooth linear motion. In air bearing systems, the rail may have a flat or specially profiled surface where an air film is generated by pressurized air from the bearing, creating a frictionless interface. The rail's geometry (e.g., rectangular, round, or profiled) and precision grinding ensure straightness, flatness, and load capacity.

Materials

Typically made from high-carbon chromium bearing steel (e.g., AISI 52100 or SUJ2), stainless steel (e.g., AISI 440C for corrosion resistance), or aluminum alloys for lightweight applications. Rails are often hardened to 58-62 HRC for wear resistance and ground to precise tolerances.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	15mm to 100mm (varies by type)
Height	15mm to 60mm
Length	Customizable, commonly 500mm to 4000mm
Precision	Straightness: ≤5 μm/m, Parallelism: ≤10 μm
Load Capacity	Dynamic: 5 kN to 100 kN, Static: 10 kN to 200 kN
Accuracy Grade	Normal (N), High (H), Precision (P), Ultra-Precision (UP)
Mounting Hole Pattern	Standardized spacing (e.g., 60mm, 80mm intervals)

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 10285, ISO 14728, DIN 645, JIS B 1192

Parent Products

This component is used in the following industrial products

Air Bearing / Linear Guide System

A precision motion system that uses compressed air to create a frictionless bearing surface and linear guides to enable ultra-smooth, high-accuracy movement in coordinate measuring machines.

View Product Details

Engineering Analysis

Risks & Mitigation

Misalignment during installation leading to premature wear
Contamination (dust, chips) causing jamming or damage
Overloading beyond rated capacity
Corrosion in humid or chemical environments
Inadequate lubrication in rolling guide systems

FMEA Triads

Trigger: Improper mounting or alignment
Failure: Increased friction, uneven wear, reduced accuracy
Mitigation: Use precision levels during installation, follow torque specifications for mounting bolts, and verify alignment with laser interferometers.

Trigger: Contamination ingress
Failure: Abrasion, pitting, or seizure of rolling elements
Mitigation: Install seals or wipers, use in clean environments, or opt for enclosed linear guide systems with protective covers.

Trigger: Insufficient lubrication
Failure: Increased wear, overheating, and reduced lifespan
Mitigation: Implement automatic lubrication systems, use compatible greases or oils, and follow maintenance schedules per manufacturer guidelines.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Straightness tolerance per ISO 10285: ≤0.005 mm/m for precision grades; dimensional tolerances per ISO 286 for shaft fits.

Test Method

Coordinate measuring machine (CMM) for geometry, profilometer for surface roughness, load testing per ISO 14728 for dynamic/static capacity, and environmental testing (e.g., salt spray per ASTM B117 for corrosion resistance).

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Guide Rail / Way

Manufacturer profiles associated with Guide Rail / Way.

Sourcing Guide Rail / Way from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Mounting Interface

Precision mounting interface connecting punch tips to pharmaceutical tablet press machines for accurate tablet production.

Chrome Plating

Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Frequently Asked Questions

What is the difference between a guide rail and a linear guide?

A guide rail is the stationary track component, while a linear guide refers to the complete system including the rail, carriage, and rolling elements. The rail provides the path, and the carriage moves along it.

How do I select the right guide rail for my application?

Consider load capacity (static and dynamic), accuracy requirements, speed, environmental conditions (e.g., corrosion, dust), and compatibility with existing systems. Consult manufacturer datasheets and standards like ISO 10285.

Can guide rails be used in cleanroom or high-precision environments?

Yes, stainless steel rails with high precision grades (e.g., UP) are suitable. For air bearing systems, rails with ultra-smooth surfaces minimize particle generation.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Guide Rail / Way