The MD (mini disc) Series Coupling features a higher torque capacity over elastomeric Coupling types. The MD Series one-piece clamping design allows for easy removal and assembly. The aluminum hubs and stainless steel disc materials allow for excellent resistance to oil and other chemicals. The MD Series design offers moderate torsional stiffness for applications requiring repeatability. The MD Series also offers up to 0.02 in of axial misalignment. Lovejoy® Coupling, Mini Disc Clamp Screw Style, Series: MD Series, 0.188 in Bore, 0.748 in OD, 1.063 in Overall Length, 0.315 in Length Through Bore, 6 in-lb Torque, 10000 RPM Maximum, 300 °F, Stainless Steel Disc/Aluminum Hub