User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 3
Table of Figures
Figure 1: EMRAX testing at Letrika d.d. Company ........................................................................................................................... 6
Figure 2: Scheme of EMRAX motor................................................................................................................................................. 6
Figure 3: EMRAX 188 drawing ........................................................................................................................................................ 7
Figure 4: EMRAX 188 (IP21)............................................................................................................................................................ 7
Figure 5: EMRAX 208 drawing ........................................................................................................................................................ 8
Figure 6: EMRAX 208 (IP65)............................................................................................................................................................ 8
Figure 7: EMRAX 228 drawing ........................................................................................................................................................ 9
Figure 8: EMRAX 228 (IP21)............................................................................................................................................................ 9
Figure 9: EMRAX 268 drawing ...................................................................................................................................................... 10
Figure 10: EMRAX 268 (IP21)........................................................................................................................................................ 10
Figure 11: EMRAX Very High Mechanical Loads (VHML) drawing. EMRAX VHML Low Voltage needs doubled phase connectors
(2xUVW). ..................................................................................................................................................................................... 10
Figure 12: EMRAX 348 drawing .................................................................................................................................................... 11
Figure 13: EMRAX 348 (IP65) with encoder .................................................................................................................................. 11
Figure 14: Mounting holes on front and back side of the motor ................................................................................................... 27
Figure 15: Mounting options (air propeller / in-wheel)................................................................................................................. 27
Figure 16: X shape brackets for EMRAX motors............................................................................................................................ 28
Figure 17: EMRAX transmission shafts.......................................................................................................................................... 29
Figure 18: Standard motor shaft vs. extended shaft with outer splines (ESO) ............................................................................... 30
Figure 19: ESO and FSI.................................................................................................................................................................. 30
Figure 20: Standard motor shaft vs. EMRAX 268 VHML shaft ....................................................................................................... 30
Figure 21: FSI................................................................................................................................................................................ 30
Figure 22: EMRAX with ESO and FSI.............................................................................................................................................. 31
Figure 23: Power/torque transmission from front motor side ...................................................................................................... 31
Figure 24: Power/torque transmission from front (FSI) and/or back motor side (ESO) ................................................................. 32
Figure 25: Power/torque transmission from front motor side to the transmission gear ............................................................... 32
Figure 26: Motor with extended shaft from back motor side........................................................................................................ 33
Figure 27: Resolver / encoder on back motor side....................................................................................................................... 34
Figure 28: Resolver / encoder on front motor side ....................................................................................................................... 35
Figure 29: Encoder with bracket................................................................................................................................................... 35
Figure 30: Resolver with bracket .................................................................................................................................................. 35
Figure 31: EMRAX with hall sensors.............................................................................................................................................. 36
Figure 32: Motor phase connectors –normal (UVW) and doubled (2xUVW) ................................................................................ 37
Figure 33: EMRAX TWIN drawing ................................................................................................................................................. 40
Figure 34: EMRAX TWIN with encoder ......................................................................................................................................... 41
Figure 35: EMRAX TWIN with tandem resolver............................................................................................................................. 41
Figure 36: Coolant fittings for EMRAX TWIN................................................................................................................................. 41
Figure 37: EMRAX TWIN shafts –ESO is mounted in the first motor and FSI on the front side of the second motor ..................... 42
Figure 38: Motor with extended shaft and flanged shaft on the extended shaft (for EMRAX TWIN) ............................................. 42
Figure 39: EMRAX IP21................................................................................................................................................................. 43
Figure 40: EMRAX IP65................................................................................................................................................................. 44
Figure 41: Motor cooling options ................................................................................................................................................. 44
Figure 42: Motor coolant fittings for one motor ........................................................................................................................... 45
Figure 43: Combinations of bearings for EMRAX motors .............................................................................................................. 47
Figure 44: Pull-push (PP) bearing outer ring fixation..................................................................................................................... 49
Figure 45: Straight connection of motor phase connectors to controller cables. .......................................................................... 50
