Linear bearings: Speed Up to 5 m/s

Component Specifications

Definition

Linear bearings are mechanical components designed to facilitate precise linear motion along a fixed axis with minimal friction. They consist of an outer housing, internal rolling elements (balls or rollers), and sometimes a retainer. When installed on X-axis rails, they enable controlled movement of machine components like tool heads, carriages, or slides. These bearings are engineered to handle radial loads while maintaining alignment and reducing wear on mating surfaces.

Working Principle

Linear bearings operate on the principle of rolling contact, where internal balls or rollers circulate within a housing to convert sliding friction into rolling friction. As the bearing moves along a rail or shaft, the rolling elements rotate, distributing load evenly and minimizing resistance. This allows for smooth, precise linear motion with high repeatability and low energy consumption.

Materials

Typically made from hardened steel (e.g., GCr15 bearing steel) for durability, with housings in steel, aluminum, or engineered plastics. Rolling elements are often chrome steel or ceramic for reduced friction.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Speed	Up to 5 m/s
Lubrication	Grease or oil-based
Load Capacity	Dynamic: 500-5000 N, Static: 1000-10000 N
Precision Grade	P0 to P5 (ISO standards)
Operating Temperature	-30°C to +120°C

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, DIN 636

Parent Products

This component is used in the following industrial products

Sliding Carriage

A movable support mechanism that holds and guides the workpiece during cutting operations on a panel saw.

View Product Details

X-Axis Rails & Drive

Linear motion system providing horizontal movement along the X-axis in a gantry configuration

View Product Details

Guide Rails & Carriage

Precision linear motion system that provides stable guidance and support for the cutting head in a flying shear or saw.

View Product Details

Engineering Analysis

Risks & Mitigation

Contamination leading to premature wear
Misalignment causing uneven load distribution
Inadequate lubrication increasing friction

FMEA Triads

Trigger: Dust or debris ingress
Failure: Increased friction and scoring of rolling surfaces
Mitigation: Install protective seals and implement regular cleaning protocols

Trigger: Overloading beyond rated capacity
Failure: Bearing deformation or catastrophic failure
Mitigation: Adhere to load specifications and use overload protection devices

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.01 mm for precision grades

Test Method

ISO 10285 for dimensional accuracy and load testing

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.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Linear bearings

5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

ALM Intelligent Technology Suzhou Co.,Limited

Suzhou, Jiangsu, CN

Also makes: High-Precision Linear Motion Ball Bushing, Linear Guideways, Linear Motor and 6 more