Hydraulic Gear Motor, 1.00 cu in/rev, SAE A 2-Bolt Mounting Flange, 3/4 Straight Keyed Shaft, 3/4 NPT Rear Ports, Bi-Rot

A 3/4 straight keyed shaft is exactly what this motor runs, so if your equipment is set up for that size and style, you should have a direct match. The SAE A 2-bolt mounting flange also gives you a standardized bolt pattern that lines up with SAE A-spec housings and brackets, which is pretty common across a wide range of industrial machinery. No adapter needed as long as your setup matches those two points.