CNC Turned Shaft Collars | Precision OEM Manufacturing

CNC turned shaft collars provide secure axial positioning and component location on drive shafts. Produced via multi-axis CNC turning and precision boring, these collars maintain strict perpendicularity between the bore and face to prevent shaft runout. Available in single-split, double-split, and threaded configurations across metric and imperial dimensions.

Technical Specifications & CAD Integration

Parameter	Specification Range (Metric)	Specification Range (Imperial)	Standard / Tolerance
Bore Diameter	3 mm to 200 mm	1/8 inch to 8 inches	H7 / Custom fit
Materials	Stainless Steel (304, 316), Carbon Steel (1045, 4140), Aluminum (6061-T6)	Same	ASTM / EN standards
Surface Finishes	Black Oxide, Zinc Plating, Anodized, Passivated	Same	RoHS compliant
Clamping Mechanism	Single-Split, Double-Split, Set Screw, Threaded	Same	DIN / ISO standard hardware
Perpendicularity	Within 0.013 mm	Within 0.0005 in	Verified via CMM

Key Features

Zero-Shaft Damage Design: Non-marring clamping distribution exerts uniform radial force across 360 degrees without biting into the shaft surface.

High Axial Load Capacity: Double-split designs generate high clamping torque, resisting heavy axial loads and continuous vibration without slippage.

Interchangeable Geometry: Direct drop-in replacement for standard industrial footprints, matching legacy OEM mounting envelopes.

Material Traceability: Mill test certificates (MTC 3.1) provided per heat lot for critical industrial applications.

Applications

Conveyor & Material Handling Systems: Positioning pulleys, sprockets, and rollers on drive shafts.

Industrial Gearboxes & Drives: Securing bearings, gears, and internal transmission components.

Packaging & Processing Machinery: Maintaining registration timing on high-speed rotating shafts.

Robotics & Motion Control: Locating actuator arms and guide blocks in automated assembly cells.

Customization

Manufactured to exact engineering drawings or sample specifications.

Dimensional Modifications: Non-standard bore diameters, extended widths, integrated keyways, and cross-drilled mounting holes.

Special Geometries: Flanged collars, multi-piece assemblies, and unique outer profile turning.

Specialty Alloys: Titanium, brass, and high-temperature alloy fabrication available upon request.

Quality Control & Inspection

Production processes are governed by ISO 9001 certified manufacturing protocols. In-house verification equipment includes:

Dimensional Verification: Coordinate Measuring Machines (CMM) and digital bore gauges calibrated to national standards.

Surface Integrity: Roughness profilometers confirming Ra values down to 0.4 micrometers.

Material Verification: Optical Emission Spectrometers (OES) for positive material identification (PMI) prior to machining.

Inspection Documentation: Full dimensional inspection reports and PPAP Level 3 packages available upon project requirement.

Production & Delivery

Manufacturing Facilities: 12,000 sqm production floor equipped with 45 CNC turning centers and multi-axis Swiss-type lathes.

Capacity: Batch sizes from 100 pieces to 50,000+ units per release.

Packaging & Logistics: Anti-corrosion VCI packaging, custom barcoding, and export-grade wooden crating shipped via FOB/CIF air or ocean freight.

FAQ

Q: What is the difference between single-split and double-split shaft collars?

A: Single-split collars wrap around the shaft and clamp via a single socket head cap screw, offering high holding power for general positioning. Double-split collars divide completely into two halves, allowing installation and removal without dismantling surrounding components on the shaft.

Q: Can you supply material test reports with our order?

A: Yes. Full material certificates (EN 10204 3.1) and dimensional inspection sheets accompany production batches upon request.

Q: What is your standard lead time for custom dimensions?

A: Standard custom machined orders ship within 15 to 25 business days, depending on material availability and batch volume.

Request a Quote

Submit your engineering drawings, 3D STEP files, target quantities, and material specifications to receive a technical quotation within 24 hours.
Email: 346320463@qq.com
Required RFQ Details: Part number, annual volume, target delivery schedule, and required quality documentation (e.g., ISO, PPAP).

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