Low Inertia and High Rigidity Disc Coupling

✅ Jinqiaotong DMP34C Keyless Diaphragm Coupling 34×31.3×10×14, specifically designed for laser machine servo lead screws
✅ Keyless clamping prevents shaft damage; high coaxiality ensures vibration-free high-speed operation and produces smooth cut lines
✅ Dual-layer stainless steel spring plates provide shock absorption; zero backlash ensures precise positioning and eliminates dimensional deviations
✅ Lightweight and low-inertia design enables faster servo response; high-temperature, maintenance-free, and resistant to aging
✅ Compatible with X/Y/Z axes on all types of fiber laser cutting machines; offers excellent value as a replacement for original couplings

Specifications:

Brand and Model:    Jinqiaotong JQT DMP34C
Overall Dimensions:    Outer Diameter D=34mm, Total Length L=31.3mm
Shaft Bores at Both Ends:    Driving End φ10mm, Driven End φ14mm (no keyway, clamping type)
Structure Type:    Double Stainless Steel Diaphragm Flexible Coupling
Body Material:    7075 high-strength aluminum alloy, hard anodized
Flexible Diaphragm:    SUS304 multi-layer stainless steel laminates
Fastening Screws:    Imported M3 hex socket clamping bolts
Rated Torque:    4.0 N·m
Maximum Instantaneous Torque:    8.0 N·m (2x overload)
Maximum Allowable Speed:    6000 rpm
Moment of Inertia:    3.8×10⁻⁶ kg·m² (ultra-low inertia)
Allowable Misalignment:    Radial ±0.015 mm; Angular ≤1°; Axial ±0.2 mm
Operating Temperature:    -80°C to +300°C
Weight per Unit:    Approx. 38 g
Suitable Equipment:    Fiber laser cutting machines; X/Y/Z servo systems; lead screw drives; precision CNC equipment
Mounting Method:    Single-sided locking screw clamping (no flat keyway)