Universal Joints Delrin And Brass. These single Universal Joints are capable of driving through angles of up to 45 degree and are excellent for shaft couplings when there is a possibility of angular misalignment. They will NOT accept, however, parallel shaft misalignment. All parts are constructed of non-ferrous materials with the exception of the alloy steel set screws. No lubrication is necessary. The unusual design of these units provide for continuous or interrupted motion with a minimum of backlash. Bore Tolerance +0.001 / - 0.000 inches.