INDUSTRY COMPONENT

Outer Sleeve

Outer sleeve for high-precision linear motion ball bushing providing structural housing and guidance.

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Component Specifications

Definition
The outer sleeve is a cylindrical housing component in a high-precision linear motion ball bushing assembly that contains and supports the ball recirculation system, maintains alignment with the shaft, and provides mounting interfaces for machine structures. It ensures precise linear movement by maintaining consistent internal geometry and surface finish for ball tracking.
Working Principle
Acts as the stationary outer raceway and housing that guides the recirculating balls along a precise linear path while maintaining proper preload and clearance with the shaft. The internal groove geometry creates continuous ball contact points that distribute load evenly across the bearing surface.
Materials
High-carbon chromium steel (SUJ2/AISI 52100) or stainless steel (AISI 440C) with case hardening to 58-62 HRC. Alternative: aluminum alloy with hardened steel inserts for lightweight applications.
Technical Parameters
  • Hardness 58-62 HRC
  • Length Range 20-500 mm
  • Straightness 0.01 mm/100 mm
  • Load Capacity Dynamic: 2-15 kN, Static: 4-30 kN
  • Surface Roughness Ra 0.4 μm max
  • Inner Diameter Tolerance H6/H7
  • Outer Diameter Tolerance h6
Standards
ISO 10285, DIN 636, JIS B 1539

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Outer Sleeve.

linear motion bushing outer sleeve precision bearing housing ball bushing component industrial linear guide machine tool bearing Outer Sleeve Outer Sleeve in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

High-Precision Linear Motion Ball Bushing

Precision linear bearing component for smooth, low-friction motion in machinery

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Engineering Analysis

Risks & Mitigation
  • Wear and surface degradation from contamination
  • Thermal expansion mismatch with housing
  • Improper installation causing misalignment
  • Corrosion in harsh environments
FMEA Triads
Trigger: Contaminant ingress (dust, chips, moisture)
Failure: Increased friction, ball track wear, vibration, reduced accuracy
Mitigation: Install proper seals/wipers, implement regular cleaning protocols, use protective covers
Trigger: Improper mounting or misalignment during installation
Failure: Uneven load distribution, premature wear, binding, reduced lifespan
Mitigation: Follow manufacturer installation guidelines, use alignment tools, verify parallelism
Trigger: Inadequate lubrication
Failure: Increased friction, overheating, accelerated wear, seizure
Mitigation: Implement scheduled lubrication maintenance, use appropriate lubricants, monitor lubrication systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286
Test Method
Coordinate measuring machine (CMM) verification, surface roughness testing per ISO 4287, hardness testing per ISO 6508

Buyer Feedback

★★★★☆ 4.7 / 5.0 (19 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Outer Sleeve meets all ISO standards."

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

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Frequently Asked Questions

What is the primary function of the outer sleeve in a linear motion ball bushing?

The outer sleeve provides the structural housing that contains the ball recirculation system, maintains precise alignment with the shaft, and offers mounting interfaces for integration into machine structures while ensuring consistent linear motion.

How does material selection affect outer sleeve performance?

Material selection determines wear resistance, load capacity, and corrosion resistance. High-carbon chromium steel offers optimal hardness and durability for heavy loads, while stainless steel provides corrosion resistance for harsh environments, and aluminum reduces weight in high-speed applications.

What are the critical tolerance specifications for outer sleeves?

Critical tolerances include inner diameter (H6/H7 for proper shaft fit), outer diameter (h6 for housing fit), straightness (0.01 mm/100 mm max), and surface roughness (Ra 0.4 μm max) to ensure smooth ball movement and minimal vibration.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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