Sleeve: Load Capacity Up to 5000 N radial, Length 50-500 mm

Component Specifications

Definition

A sleeve is a hollow cylindrical component designed to fit over a rotating shaft within a spool assembly. It serves multiple critical functions including maintaining precise shaft alignment, reducing friction between moving parts, protecting the shaft from wear and contamination, and providing a mounting surface for other components. In industrial applications, sleeves ensure smooth operation, extend equipment lifespan, and prevent mechanical failures in winding, unwinding, and material handling systems.

Working Principle

The sleeve operates on the principle of providing a precise interface between the rotating shaft and the spool. It creates a controlled clearance fit that allows rotational movement while maintaining axial and radial alignment. The sleeve distributes loads evenly across the shaft surface, reduces direct metal-to-metal contact through proper material selection, and often incorporates lubrication channels or surface treatments to minimize friction and wear during operation.

Materials

Typically manufactured from hardened steel (AISI 4140/4340), stainless steel (304/316), bronze alloys (C93200), or engineered polymers (PTFE, PEEK, UHMW-PE) depending on application requirements. Surface treatments may include chrome plating, nitriding, or ceramic coatings for enhanced wear resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	50-500 mm
Max RPM	5000
Hardness	45-60 HRC (steel), 80-100 HB (bronze)
Load Capacity	Up to 5000 N radial
Inner Diameter	10-200 mm (customizable)
Outer Diameter	15-250 mm
Surface Finish	Ra 0.4-1.6 μm
Wall Thickness	2.5-25 mm
Operating Temperature	-40°C to +200°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 286-1, ISO 2768-1, DIN 7150, DIN 7154

Parent Products

This component is used in the following industrial products

Spool and Sleeve Assembly

A precision spool and sleeve assembly that controls fluid flow in a servo control valve.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear and tear leading to shaft damage
Misalignment causing vibration
Corrosion in harsh environments
Thermal expansion mismatch
Improper installation causing premature failure

FMEA Triads

Trigger: Inadequate lubrication
Failure: Excessive wear and overheating
Mitigation: Implement automatic lubrication systems and regular maintenance schedules

Trigger: Material fatigue under cyclic loading
Failure: Cracking or fracture
Mitigation: Use fatigue-resistant materials and conduct periodic non-destructive testing

Trigger: Contamination ingress
Failure: Abrasive wear and seizure
Mitigation: Install effective seals and implement clean operating environments

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

IT6-IT7 for inner diameter, IT7-IT8 for outer diameter per ISO 286

Test Method

Dimensional verification with CMM, surface roughness testing per ISO 4287, hardness testing per ISO 6508, runout testing with dial indicators

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 Sleeve

Manufacturer profiles associated with Sleeve.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a sleeve and a bushing?

While both are cylindrical components, sleeves typically provide alignment and protection for shafts, while bushings are specifically designed as bearing surfaces to reduce friction and wear between moving parts.

How do I select the right sleeve material for my application?

Consider operating conditions: steel for high load/strength, stainless for corrosion resistance, bronze for low friction/bearing applications, and polymers for chemical resistance/noise reduction.

What maintenance do sleeves require?

Regular inspection for wear, proper lubrication (if applicable), cleaning to prevent contamination buildup, and periodic replacement based on operational hours or wear indicators.

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.

Sleeve