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Flexible Shaft Coupling OD 20mm Length 25mm Bore 05mm, Aluminum Alloy Anodized Coupler for CNC Routers, 3D Printers, and Automation Equipment in Kuwait

6.35mm-08mm 1

KWD 4.500
Size6.35mm-08mm
Number of Items1
– 1 +

Special Features

  • 【Dimensions & Precision】 OD 20mm, length 25mm, bore size 05mm. Each bore is machined to H7 tolerance and verified with plug gauges to ensure accurate fit and stable coupling.
  • 【Material & Surface】 Made from anodized aluminum alloy hubs with an anodized surface, offering corrosion resistance and low weight; optimized for stepper motor and H7 tolerance.
  • 【Elastic Insert & Screws】 Equipped with a polyurethane spider insert rated 98 Shore A for servo motor, and secured by Grade 12.9 set screws to maintain flexible shaft coupling during operation.
  • 【Chamfer & Alignment】 Slit edges use R-type chamfer to lower stress concentration; high concentricity improves shaft alignment, enhancing vibration damping and shaft alignment.
  • 【Applications】 Ideal for compact mechanisms, small CNC axes, pick‑and‑place units, and 3D printers; works with servo and stepper motors requiring flexible shaft alignment and vibration damping.

Description

This flexible shaft coupling combines anodized aluminum alloy hubs and a polyurethane spider to deliver reliable H7 tolerance in compact drivetrains. It is precision‑machined to H7 tolerance and plug‑gauge tested for accurate fit with bore size 05mm. R‑type chamfering at the slit helps distribute load and reduce stress concentration, while Grade 12.9 screws keep the hubs secure. The design emphasizes high concentricity for smooth rotation and shaft alignment, making it suitable for CNC automation, servo and stepper drives, and 3D printers where aluminum alloy hubs is required.

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