The Split Steel Sleeve (two-piece clamping sleeve) is designed for secure shaft mounting, positioning, and component spacing without shaft disassembly. The symmetrical two-piece design allows for lateral installation and distributes uniform 360-degree radial clamping force.
Manufactured through precision CNC turning and controlled matching processes, our split steel sleeves deliver tight concentricity, dependable axial holding power, and reliable interchangeability for industrial machinery and power transmission assemblies.
Key Features
Matched-Set Machining: Halves are processed in matched sets to ensure rotational symmetry and zero bore distortion when bolted.
Balanced Clamping: Distributes uniform radial pressure, preventing shaft marring while maximizing slip resistance under vibration.
Precision Socket Cap Screws: High-tensile hardware (Grade 12.9) seats flush and provides repeatable clamping torque without thread stripping.
Perpendicular Face Control: Strict face-to-bore squareness ensures accurate alignment when used as a mechanical stop or spacer.
Technical Specifications
|
Parameter |
Specification Range / Standard |
|
Inner Diameter (ID) |
10 mm to 200 mm (0.375 in to 8.0 in) |
|
Outer Diameter (OD) |
Machined to customer engineering drawings |
|
Standard Lengths |
20 mm to 150 mm (Custom lengths available) |
|
Bore Tolerance |
H8 / ISO tolerance classes per drawing |
|
Thread Standards |
Metric (ISO) and Unified National (UNC/UNF) socket cap screws |
|
Standard Finishes |
Black Oxide, Clear Zinc Plating, Passivated (Stainless), Untreated with Rust Preventative Oil |
Materials & Machining Processes
Material Options
Carbon Steel: AISI 1045 / C45 (standard strength and wear resistance).
Alloy Steel: AISI 4140 / 42CrMo (high tensile strength and superior load capacity).
Stainless Steel: AISI 304 / 316 (corrosion-resistant environments).
Manufacturing Capabilities (In-House)
CNC Turning Centers: Maintain tight ID/OD concentricity and surface finish roughness down to Ra 0.8 um.
Precision Sawing & Milling: Clean split separation ensures matching halves with zero rotational mismatch.
Multi-Axis Tapping: CNC drilling and tapping centers maintain strict perpendicularity for clamping screw holes.
Applications
Conveyor Systems
Roller positioning, sprocket spacing, and drive shaft stops.
Packaging & Processing Machinery
Synchronized rotating elements and guide rail mounting.
Agricultural Equipment
Power take-off (PTO) shaft components and implement linkages.
Industrial Automation
Linear actuator stops and motor-to-gearbox coupling assemblies.
Customization & OEM Services
We manufacture split steel sleeves strictly to customer engineering drawings and technical requirements:
Custom Dimensions
Non-standard IDs, ODs, stepped profiles, or integrated keyways.
Material Traceability
Full MTRs (Mill Test Reports) supplied for specified alloy and carbon steel grades.
Prototyping & Small Batches
Rapid sample lead times available for engineering validation prior to full-run production.
Laser Marking
Custom part numbers, logos, or traceability codes marked directly on the component.
Quality Control & Inspection
Manufacturing consistency is verified using calibrated metrology equipment and strict in-process checks:
Dimensional Verification
100% or AQL sampling using digital micrometers, bore gauges, and height masters.
Thread & Fit Inspection
Go/No-Go thread gauges and master test shafts to verify clamping alignment and bore roundness.
Surface Finish Analysis
Optical roughness testers to ensure compliance with friction and sealing specifications.
Documentation
Dimensional inspection reports and material certificates supplied with shipment upon request.
Packaging & Shipping
Corrosion Protection: Components are coated with industrial-grade rust preventative oil and sealed in VCI (Volatile Corrosion Inhibitor) bags.
Secure Boxing: Heavy-duty corrugated cartons with partitioned spacing to prevent transit impact and scratching.
Export Logistics: Palletized and shrink-wrapped for international air or sea freight compliance.
Frequently Asked Questions
Q: What is the minimum order quantity (MOQ) for custom split steel sleeves?
A: MOQ depends on dimensions and material, typically starting at 50 to 100 pieces per size for custom production. Lower quantities can be evaluated for standard catalog items.
Q: What is the typical lead time for production?
A: Standard sampling takes 7 to 12 days. Production runs generally require 3 to 4 weeks depending on order volume and secondary plating processes.
Q: What CAD file formats do you accept for custom orders?
A: We accept STEP, IGES, DXF, DWG, and PDF engineering drawings with explicit tolerance callouts.
Q: How do you ensure the two split halves align correctly during assembly?
A: The halves are precision-machined in matched sets to guarantee rotational symmetry and eliminate bore distortion when bolted.
Q: Can you provide custom surface treatments other than black oxide or zinc?
A: Yes, we accommodate electroless nickel plating, cadmium plating, and specific phosphating treatments per customer specification.
Q: Are the clamping screws included with the sleeves?
A: Yes, high-tensile socket head cap screws (Grade 12.9 for steel variants) are included and packaged with every split sleeve.
Request a Quote
To receive a prompt and accurate quotation, please provide the following details:
Engineering Drawing or PDF: Showing dimensions, tolerances, and critical features.
Material Grade: (e.g., 1045 Steel, 4140 Alloy Steel, 304 Stainless Steel).
Quantity: Required per batch / annual forecast.
Surface Finish / Coating: (e.g., Black Oxide, Zinc Plated, Untreated).
Special Requirements: (e.g., specific packaging, laser marking, or MTR requirements).
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