Drive dimensioning

Gearbox designs Gearbox with mounting flange design N

Mounting flange: Coupling hub: ˘ Flange dimensions suitable for motors in accordancewith IEC 72/DIN 42948 or NEMA ˘ Standard: Coupling hub with keyway for motor shafts inaccordance with IEC and NEMA ˘ Two bearing shaft ˘ Optional coupling hubs for frequentshocks and loadalternation or reduced coupling backlash:– Clamping hub with tangential clamping screw formotor shafts with keyway, no backlash– Clamping ring hub for motor shafts withoutkeyway,no backlash, recommended in particular for servomotors ˘ Gearbox-side coupling half integrated in the shaft Spider (coupling element): ˘ Torsionally rigid ˘ Isogonic ˘ Low backlash (backlash-free with clamping hub/clamping ring hub)

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Geometric assignments for IEC standard motors

See the selection tables for gearboxes with mounting flanges for the permissible inputpowers and outputtorques.

IEC motorsLenzeCoupling hubDimensionsdriveMounting flangeMotor shaft SizeDesignFlange size Standard/ClampingFlangePitch circleCentringsizeclampingring hubhub a
3 e
3 b
3 dl
min l
max 63B14C90 1A/2B öö 907560112323C160 6C ö
1) 1601301102340C105 1B/3C öö 1058570303071B14C120 4C 12010080142540C160 2C öö 1601301102540C120 7C öö 12010080254080B14 1C 192540C160 2D öö 1601301104050 3E 3060B14C160 1D ö 160130110505090 2E/2F öö 243060B5A200 4E/3F öö 1881651305050100B14C160 1E/1F öö 160130110283060112B5A250 2G 2502151806060132B5A250 3G öö 250215180388080B5A300 1G/3H öö 3002652308080160B5A350 1H öö 35030025042110110180B5A350 2H ö 35030025048110110200B5A400 1K ö 40035030055110110225B5A450 2K ö 45040035060140140 Dimensions in [mm]
1) Only clamping hub possible Mounting flangeClamping hubSpider G-motion consten 7/2006

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