INDUSTRY COMPONENT

Outer Housing

Protective outer housing for linear bearings that shields internal components from contaminants and provides structural support.

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Component Specifications

Definition
The outer housing is a critical structural component of linear bearings, typically cylindrical or rectangular in shape, designed to enclose and protect the bearing's internal rolling elements (balls or rollers), retainers, and raceways. It serves as the primary interface for mounting the bearing to machine structures while preventing ingress of dust, debris, and moisture that could compromise bearing performance and lifespan.
Working Principle
The outer housing functions as a protective barrier and mounting platform. It maintains precise alignment of internal bearing components through machined surfaces, distributes loads evenly across the bearing structure, and often incorporates sealing mechanisms (such as wipers or seals) to exclude contaminants. Its rigidity ensures dimensional stability under operational forces.
Materials
Typically made from high-strength materials: carbon steel (e.g., S45C, AISI 1045), stainless steel (e.g., SUS304, AISI 440C for corrosion resistance), or aluminum alloys (e.g., 6061-T6 for lightweight applications). Surface treatments may include black oxide coating, zinc plating, or hard anodizing for aluminum.
Technical Parameters
  • Hardness HRC 58-62 for steel housings
  • Housing Type Closed or Open
  • Load Capacity Dynamic: 5-50 kN, Static: 10-100 kN
  • Mounting Style Flange, Block, or Pillow Block
  • Surface Finish Ra 1.6 μm or better
  • Operating Temperature -20°C to +120°C
Standards
ISO 14728, DIN 636

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Outer Housing.

linear bearing housing outer housing bearing protection machine component industrial housing linear motion bearing enclosure Outer Housing in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Linear Bearings

Precision mechanical components that provide smooth, low-friction linear motion along a fixed axis.

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Linear Bearing

A precision mechanical component that provides low-friction linear motion along a guide rod or shaft.

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Engineering Analysis

Risks & Mitigation
  • Contamination ingress leading to bearing failure
  • Improper mounting causing misalignment
  • Material fatigue under cyclic loads
  • Corrosion in harsh environments
FMEA Triads
Trigger: Inadequate sealing allowing contaminant ingress
Failure: Increased friction, wear, and eventual bearing seizure
Mitigation: Use housings with integrated seals/wipers, implement regular maintenance cleaning
Trigger: Improper mounting torque or alignment
Failure: Premature wear, reduced accuracy, and vibration
Mitigation: Follow manufacturer torque specifications, use precision alignment tools during installation
Trigger: Material corrosion in humid/chemical environments
Failure: Structural weakening and dimensional changes
Mitigation: Select corrosion-resistant materials (stainless steel), apply protective coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Housing bore tolerance: H7, Mounting surface flatness: 0.01 mm/100 mm
Test Method
Dimensional verification via CMM, load testing per ISO 14728, seal effectiveness testing with IP ratings

Buyer Feedback

★★★★☆ 4.6 / 5.0 (19 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Outer Housing arrived with full certification."

"Great transparency on the Outer Housing components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Outer Housing we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the primary function of an outer housing in linear bearings?

The outer housing protects internal bearing components from contaminants like dust and moisture, provides structural support for mounting, and maintains precise alignment of rolling elements.

Can outer housings be interchanged between different linear bearing brands?

Generally not interchangeable due to dimensional and mounting variations between manufacturers. Always consult manufacturer specifications for compatibility.

How does material choice affect outer housing performance?

Steel housings offer high strength and durability, stainless steel provides corrosion resistance, while aluminum reduces weight but may have lower load capacity.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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