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Products Description

Product Name: Precision Split-Design Mechanical Coupling

Product Overview

This product is an industrial-grade metallic coupling designed for high-precision torque transmission and shaft alignment. The silver-colored cylindrical body features a smooth, mirror-polished finish and a split design with a visible seam for adjustable tensioning. Key features include a central shaft insertion hole and three triangularly arranged smaller holes on one face for mounting, along with a side-threaded hole for secure fastening. Engineered for heavy-duty industrial applications such as machinery, automotive systems, and energy equipment.

Core Specifications

Parameter	Technical Value	Testing Standard
Material	40Cr Alloy Steel (UNS G40Cr)	ASTM A29
Outer Diameter	Φ80mm ±0.05mm	ISO 2768
Thickness	15mm	GB/T 3091
Central Hole	Φ30mm	ISO 965
Thread Spec	M8×1.25mm (Side Hole)	ASME B1.20.1
Surface Finish	Mirror Polished (Ra 0.4μm)	SAE J444
Tensile Strength	≥800MPa	ASTM E8/E9
Operating Temp	-40℃ ~ 200℃	IEC 60068

Design Features

Split Design
- Adjustable Seam: Allows tensioning to secure shaft connections.
- Triangular Hole Layout: Three smaller holes (Φ10mm) enhance rotational stability.
Surface Treatment
- Mirror Polishing: Ra 0.4μm surface reduces friction and wear.
- Oxide Coating: 3–5μm passive layer improves corrosion resistance.
Load-Bearing Optimization
- Wall thickness of 15mm supports static loads up to 1.2kN.

Manufacturing Process

Process Step	Technical Focus	Equipment Used
Blank Cutting	Laser profiling (±0.05mm)	Trumpf TruLaser 5030
Cylindrical Forming	CNC Turning (4-axis)	DMG MORI CTX Beta 650
Hole Machining	Boring + Thread Rolling (IT7)	AIDA HFM-3000
Surface Finishing	Ultrasonic Polishing	Balzers PVD 300

Applications

Industrial Machinery
- CNC machine spindle couplings (ISO 5211-compliant).
- Heavy-duty transmission systems (shock load resistance ≥3×rated torque).
Automotive Manufacturing
- EV motor-to-gearbox couplings (TS16949-certified).
- Transmission input shaft joints (IP67-rated waterproofing).
Energy Equipment
- Wind turbine yaw systems (salt spray test ≥1,000 hours).
- Pump couplings (pressure test ≥2MPa).

Quality Assurance

Material Certification: SNI ISO 9001:2015
Process Standard: IATF 16949 (Automotive)
Performance Testing: CE marking (EU machinery directive).

Technical Advantages

✅ Patented Design: Split adjustable structure (Patent No.: ZL20236555432)
✅ Eco-Friendly: RoHS 2.0 compliant (lead-free surface treatment)
✅ Custom Solutions: 3D model download and rapid prototyping (72-hour delivery).

Technical Support: +86 150-1532-6863

Email: cassy@xqdmachining.com

Website: https://xqdmachining.com/index.html

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