INDUSTRY COMPONENT

Linear bearings

Linear bearings are precision components that provide smooth, low-friction linear motion along X-axis rails in industrial machinery.

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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
ParameterTypical rangeNotes & selection driver
SpeedUp to 5 m/s
LubricationGrease or oil-based
Load CapacityDynamic: 500-5000 N, Static: 1000-10000 N
Precision GradeP0 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.

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X-Axis Rails & Drive

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

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Guide Rails & Carriage

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

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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.

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

Manufacturers of Linear bearings

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

Zhejiang Waxing Electromechanical Co., Ltd.
Zhejiang, CN
Also makes: Universal Joint, Linear Bearing, Housing / Pillow Block and 7 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

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

Related Components

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.
Shaft Bearing
Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.
Seal Groove
Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What are the main types of linear bearings?

Common types include ball bushings, roller bearings, and slide bushings, each suited for different load and precision requirements.

How do I maintain linear bearings?

Regular lubrication, cleaning to remove contaminants, and periodic inspection for wear or misalignment are essential for optimal performance.

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.

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