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Outer Sleeve Component – Machinery and Equipment Manufacturing

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.

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

View Product Details

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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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.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Outer Sleeve