174-6787, Ruland, Ruland Shaft Collar, Two Piece, Clamp Screw, Bore 50mm, OD 78mm, W 19mm, Stainless Steel, Brand Ruland, Shaft Diameter 50mm, One/Two Piece Two Piece Ruland Shaft Collar, Two Piece, Clamp Screw, Bore 50mm, OD 78mm, W 19mm, Stainless Steel