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, 3/4 in Bore, 1.969 in OD, 2.244 in Overall Length, 0.709 in Length Through Bore, 80 in-lb Torque, 4000 RPM Maximum, 300 °F, Stainless Steel Disc/Aluminum Hub