Flender/Flender Gear Units/Bevel-helical speed reduction gearbox B3
PEX coupling 8/8 Type B3, gear unit sizes 5 to 5with -EUPEX coupling 8/1 Type B4, gear unit sizes 5

to 5with -EUPEX coupling 8/1 Fitting dimensions for IEC motorsMotor connection Siemens AG 2 Motor connection Motor bell housing for

IEC motors Type H2, gear unit sizes 5 to 5 with -EUPEX coupling 8/2 Siemens MD 3.1 2Design For plants

with special design requirements (high switching frequency, alternating direction of load; .. hoisting gears, traveling gears, etc.) the coupling design

is to be checked in accordance with the respective valid coupling brochure. For other couplings, please consult us. For fitting dimensions for IEC standard motors DIN EN 5 (View ), see page 8/1. Helical gear unit in and design, on request only. For type H2D. Design and , on request only. Not in connection with taconite on input shaft (see note on page 7/.G_MD3_XX_0Z XZ h1h2 2D 1f NL NLsk Dimensions in mm Gear unit sizesBasic dimensions Ratio range 1 Ratio range 2 Ratio range 3 IEC motor -EUPEX Sk NL D2 D1 h1 h2 D1 h1 h2 D1 h1 h2 5 iN = 6.3 - 1.2 iN = 1.5 - 1 iN = 1 - 2 1M B1 3 4 4 3 0 0 3 2 2 8 3 1L B1 3 4 4 3 0 0 3 2 2 8 3 1M B1 3 4 4 3 0 0 3 2 2 8 3 1L B1 3 5 4 3 0 0 3 2 5 5 3 2L B1 3 5 5 4 0 0 3 3 7 1 3 2 0 0 3 2S B1 3 5 6 4 7 1 4 3 7 7 4 2 0 2 3 2M B1 3 5 6 4 7 1 4 3 7 7 4 2 0 2 3 2M B1 4 6 6 4 2 3 4 3 8 1 4 5 iN = 6.3 - 1 iN = 1.2 - 1 iN = 1 - 1 5 iN = 9 - 1 iN = 1 - 2 iN = 2.4 - 2 2S B1 3 5 6 4 0 2 4 3 0 0 4 2M B1 3 5 6 4 0 2 4 3 0 0 4 2M B1 4 6 6 6 8 1 4 4 6 7 4 B1 4 7 6 3 1 2 4 2S B1 4 7 7 6 9 9 4 4 6 7 4 2M B1 4 7 7 6 9 9 4 4 6 7 4 3S B2 4 8 8 6 1 2 5 4 0 1 4 3M B2 4 8 8 6 1 2 5 4 0 1 4 3L B2 4 9 8 6 1 1 5 Siemens AG 2 Motor connection Motor bell housing for IEC motors Type H2, gear unit sizes 5 to 5 with -EUPEX coupling 8/3 Siemens MD 3.1 2Design (continued) Dimensions in mm Gear unit sizesBasic dimensions Ratio range 1 Ratio range 2 Ratio range 3 IEC motor -EUPEX Sk NL D2 D1 h1 h2 D1 h1 h2 D1 h1 h2 5 iN = 6.3 - 1 iN = 1.2 - 1