The product includes 2 brass couplings, 8 fastening screws, and 1 wrench High-precision machining can control the installation straightness of the motor shaft and the propeller shaft, reducing vibration and noise ↓ Refined coupling↓ 2.0-2.5: outer diameter 8mm, length 20mm, inner hole diameter Ф2.0-Ф2.5mm; M3 concave end fastening screw, m1.5 wrench; 2.3-2.5: outer diameter 8mm, length 20mm, inner hole diameter Ф2.3-Ф2.5mm; M3 concave end fastening screw, m1.5 wrench; 1.0-1.5: outer diameter 5mm, length 12mm, inner hole diameter Ф1.0-Ф1.5mm; M2 concave end fastening screw, m0.9 wrench; 2.3-3.0: outer diameter 9mm, length 20mm, inner hole diameter Ф2.3-Ф3.0mm; M3 concave end fastening screw, m1.5 wrench; 1.5-1.5: outer diameter 6mm, length 16mm, inner hole diameter Ф1.5-Ф1.5mm; M2.5 concave end fastening screw, m1.27 wrench; 1.0-1.0: outer diameter 5mm, length 12mm, inner hole diameter Ф1.0-Ф1.0mm; M2 concave end fastening screw, m0.9 wrench; 3.17-2.5: outer diameter 9mm, length 20mm, inner hole diameter Ф3.17-Ф2.5mm; M3 concave end fastening screw, m1.5 wrench; 2.0-1.5: outer diameter 8mm, length 20mm, inner hole diameter Ф2.0-Ф1.5mm; M3 concave end fastening screw, m1.5 wrench; 1.5-1.0: outer diameter 6mm, length 16mm, inner hole diameter Ф1.5-Ф1.0mm; M2.5 concave end fastening screw, m1.27 wrench: 1.5-2.0: outer diameter 6mm, length 16mm, inner hole diameter Ф1.5-Ф2.0mm; M2.5 concave end fastening screw, m1.27 wrench; 3.17-3.0: outer diameter 9mm, length 20mm, inner hole diameter Ф3.17-Ф3.0mm; M3 concave end fastening screw, m1.5 wrench; 2.3-2.0: outer diameter 8mm, length 20mm, inner hole diameter Ф2.3-Ф2.0mm; M3 concave end fastening screw, m1.5 wrench;
