Project Planning for Gear Units Overhung and axial loads

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Higher permitted overhung loads Exactly considering the force application angle α and the direction of rotation makes itpossible to achieve a higher overhung load. Higher output shaft loads are permitted ifheavy duty manufacturer of bearings are installed, especially with R, F and K gear units. Contact SEW-EURODRIVE in such cases. 1 2 3
Definition of force application point Force application is defined according to the following figure: 6
αα 7
X F A 8
0°0°XF

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9
59824AXX 10
Figure 5: Definition of force application point F = Permitted overhung load at point x [N]F 11
X A = Permitted axial load [N] 12 13
Permitted axial loads If there is no overhung load, then an axial force F A (tension or compression) amountingto 50 % of the overhung load given in the selection tables is permitted. This conditionapplies to the following gearmotors:•Helical gearmotors except for R..137... to R..167... •Parallel shaft and helical-bevel gearmotors with solid shaft except for F97...•Helical-worm gearmotors with solid shaft 14 15 16 17
Contact SEW-EURODRIVE for all other types of gear units and in the event of signifi-cantly greater axial forces or combinations of overhung load and axial force. 18 19 20 21 22
Catalog – DR Gearmotors 01/2008 47