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

' 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 '

• 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.