Details
Ruland SPC-16-16-F Two-Piece Clamping Rigid Coupling with Keyway, Black Oxide Steel, 1" Bore A Diameter, 1" Bore B Diameter, 1-3/4" OD, 3" Length, 1/4" x 1/4" Keyway Width

Precision honed bores for superior fit and torque transmission. Does not mar the shaft. Keyways are used for additional torque transmission capabilities and to prevent slippage on the shaft.
Two-piece styles have opposing hardware for a balanced design.
Proprietary Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions. Nypatch significantly reduces installation time as no additional screw treatment is needed prior to use.
Made from 1215 lead-free steel with proprietary black oxide finish for increased holding power and corrosion resistance. Machined to a fine burr free finish.
' Rigid Shaft Coupling, Two Piece Clamp Type, With Keyway, Bore Dia 1 In, Overall Length 3 In, Outside Dia 1 3/4 In, Clearance Dia 2.049 In, Screw Size 1/4-28 In, Keyway Width 1/4 In, Max Torque 4000 In-Lb, Black Oxide Steel '