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4mm X 8mm COUPLER RIGID COUPLING OD

5.0(1 review)
SKU: ME-3539
JD1.75JD2.50

The 4mm x 8mm Rigid Coupler is a precision shaft coupling designed to connect two shafts with diameters of 4mm and 8mm while providing accurate and efficient torque transmission. This rigid coupling creates a solid, backlash-free connection, ensuring precise rotational synchronization and stable performance. Manufactured from high-quality aluminum alloy or stainless steel, it offers excellent mechanical strength, corrosion resistance, and long service life. The coupling is widely used in CNC machines, robotics, 3D printers, stepper motor systems, and industrial automation equipment, delivering reliable operation and efficient power transfer in applications where precise shaft alignment and dependable performance are essential.

إن القارنة الصلبة 4 مم × 8 مم هي وصلة ميكانيكية دقيقة مصممة لربط عمودين بأقطار 4 مم و8 مم مع نقل العزم بكفاءة ودقة عالية. توفر هذه القارنة اتصالاً صلباً وخالياً من الخلوص، مما يضمن تزامناً دقيقاً للحركة الدورانية وأداءً مستقراً. يتم تصنيعها من سبائك الألمنيوم أو الفولاذ المقاوم للصدأ لتوفير قوة ميكانيكية عالية ومقاومة ممتازة للتآكل وعمر تشغيلي طويل. تستخدم على نطاق واسع في آلات CNC والروبوتات والطابعات ثلاثية الأبعاد وأنظمة المحركات الخطوية ومعدات الأتمتة الصناعية لضمان نقل حركة موثوق وأداء دقيق.

Bearing & Coupling

The 4mm x 8mm Rigid Coupler (Rigid Shaft Coupling) is engineered to provide a secure and accurate connection between two shafts with diameters of 4mm and 8mm. It forms a rigid mechanical link that transfers rotational motion and torque without backlash, ensuring efficient power transmission and precise shaft synchronization.

Unlike flexible couplings, this rigid coupling does not compensate for angular, parallel, or axial shaft misalignment. Therefore, it is best suited for applications where both shafts are correctly aligned and precise motion control is required.

Manufactured from premium aluminum alloy or stainless steel, the coupling provides excellent durability, resistance to wear, and protection against corrosion. The shafts are securely fixed using set screws or clamping mechanisms, preventing slippage and ensuring dependable long-term operation in demanding industrial and automation environments.

Specifications

ParameterSpecification
Product TypeRigid Shaft Coupling
Shaft Bore Diameter4mm x 8mm
Coupling TypeRigid
Outer Diameter (OD)Typically 16–20mm (depending on manufacturer)
MaterialAluminum Alloy / Stainless Steel
Mounting MethodSet Screw or Clamp Type
BacklashZero Backlash
Corrosion ResistanceYes
Operating FunctionTorque Transmission
Application EnvironmentPrecision Motion Systems and Industrial Equipment

Applications

  • CNC machines and engraving equipment
  • 3D printers and positioning systems
  • Stepper motor and servo motor assemblies
  • Robotics and automation equipment
  • Linear actuators and lead screw mechanisms
  • Industrial machinery and conveyor systems
  • Packaging and automated production equipment
  • Testing and measurement instruments
  • Precision motion-control applications
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