This coupling is best suited for encoders.
4-Beam Clamp Coupling, Bores 11mmx0.181", Stainless Steel This MW-series beam coupling is machined from a single piece of stainless steel and features two sets of two spiral cuts allowing for higher torque capacity and lower windup than single beam couplings. Ruland four beam couplings are zero-backlash and have a balanced design for reduced vibration at high speeds up to 6,000 RPM.