NM flexible shaft coupling (Normex / Spider coupling) adopts high‑quality cast‑iron hubs by precision casting for high strength and long service life. This jaw‑type flexible coupling uses bakelite cloth or PU slider inserts between two coupling halves. Torque is transferred through column pins to connect driving and driven shafts. Complies with pump industry BI104 standard. Max allowable torque:850N·m, max shaft diameter:50mm.

Features:

1. Compact, lightweight, simple‑structure, easy installation, economical for medium‑low power.
2. High transmission torque; smaller rotating diameter than gear couplings under same torque.
3. Low inertia force, fit for high‑speed working without heavy sharp impact. Nylon insert version works without lubrication.
4. Flexible insert absorbs vibration and compensates minor shaft misalignment.

Application: Water pumps, motors, blowers and general industrial transmission equipment. Custom bore & keyway machining available.