RG helical gearmotor series

RGL37 and RGL47 share the listed 110 h7 pilot and four Ø9 holes on a 130 mm circle in their 160 mm flange versions. Their shafts differ by 5 mm in diameter and 10 mm in extension. Both drawings use an 8 mm key width, which can make a partial measurement misleading. Measure the existing coupling bore and available insertion length, then check the driven equipment’s shaft position against the full assembly drawing.

The RG model explanation uses I for the smaller flange where alternatives exist and II for the larger of two, or the middle of three. Those Roman numerals are not universal flange diameters. Put the gearbox size and actual flange diameter, pilot and hole pattern in the inquiry, and have the supplier return the matching full code. Include the existing ratio and motor nameplate so a matching flange does not accidentally change the machine’s operating speed.

The catalogue separately illustrates an F IEC-flange input, an S shaft input and a combined WB arrangement. On RG37 the S input is shown with a 16 k6 shaft and 40 mm extension; RG47 uses a 19 k6 shaft and the same 40 mm extension. These are input dimensions, not the 25/30 mm output shafts above. State whether you need a complete motor-gearbox assembly or a reducer to accept an existing motor, and supply that motor’s interface drawing when it is being retained.