10pcs Brass Hex Coupling 2/3/3.17/4/5/6/7/8 mm Motor Flexible Coupling Tyre Wheel Brass Hex Shaft Coupler with Screw Wrench(8)

CouplingsProduct descriptionMaterial: BrassHexagonal length: 7mmDiagonal length: 13.6mmEdge to edge distance: 12mmOverall height: 18mmCylinder height: 12mmCylinder outer diameter: 11mmCylinder inner diameter: 2/3/3.17/4/5/6/7/8mmTolerance range: ±0.01~±0.03mmEach hex coupling will come with two M4 machine instrumentation screws.A wrench will be sent with the order.Features:This brass hexagonal coupling is made of brass and has good electrical conductivity and corrosion resistance; the hexagonal shape is easy to tighten with a wrench, and the inner hole is a through-hole straight hole structure, suitable for shaft diameters of 3-8mm; it comes with a jackscrew + wrench, making installation convenient and reliable.Application scope:Mainly used for inter-axis connection of small motors, reducers, encoders, servos, fans, model cars/boats and other micro power systems to achieve torque transmission and slight eccentricity compensation; commonly used in DIY electronic projects, 3D printers, robot joints, toy motor drives and teaching experimental devices.IMPORTANT NOTE:1. Manual measurement may produce a deviation of 1-3 mm. If you mind, please purchase with caution.2. Due to display differences, screen colors may be slightly different. Actual product color may vary from image. Thank you for your understanding.==========High-concerned chemical : NoneFlexible or Rigid : FlexibleModel Number : 2/3/3.17/4/5/6/7/8 mmMaterial : STEELStructure : discOrigin : Mainland ChinaCertification : NONE

• Couplings