US: + 267 933 25 Europe: +33 2 92 87 5 sia: +86 2 5763 58 Harleysville, P 438 DC SERO MOTORS 238XXXXNC Series BRUSHESS DC MOTORS The EC57B series brushless motor is a high torque model brushless motor designed in a NEM 23 package. t is offered in 4 motor lengths with continuous torque from 8.586. Features: Speeds up to 6, RPM possible DC bus voltage up to dc NEM 23 configuration Six standard windings 4 Pole Rare Earth design ssembly Options: Standard Optical Encoders: Z Gearboxes: G3, PG52, PG63 Brakes: B3 EC57B-2 Salient Characteristics MOTOR DT SYMBO UNTS EC57B- EC57B-2 EC57B-3 EC57B-4 OPTONS Max DC Terminal oltage Max Speed (Mechanical) Continuous Stall Torque Peak Torque (Maximum) Coulomb Friction Torque iscous Damping Factor Thermal Time Constant Thermal Resistance Max. inding Temperature Rotor nertia Motor eight T w MX T cs T pk T f D t th R th Q MX J r w m s/rad /k min C/ C kg m 2 -s 2 g oz. 2 65..69 6.7E- 6. 4.8 5 7.E- 6. 5.32 45.98..2.3E- 5.2 3. 5.2E- 5.7 7 26. 56.3 8..6.3E- 5.2 5.8E- 5.25 36.59.8 26. E- 5 5 2.3E- 5.32 3 45 Gearboxes Encoders Brakes Drives G3 PG52 PG63 Z B3 BGE6 BGE65 Recorded aaximum winding temperature at 25 C ambient and without heatsink. EC57B through EC57B 4: Dimensional Drawings Ø.25 (6.35) (engths vailable): EC57B- = 3. (8) EC57B-2 = 3.94 (75.6) EC57B-3 = 4. () EC57B-4 = 5.5 ().2 [5.] 8. ±. (46 ±25) 8. ±. (46 ±25) Dimensions = inches (mm) Ø.5 (38.) 2.25 ±.2 (57.2 ±.5) SQ..6 (.5).8 ±.3 (2.6 ±.8).5 (38.) REF. NOTE: ll values specified at 25 C ambient temperature and without heatsink. Peak values are theoretical and for reference only.
BRUSHESS DC MOTORS 238XXXXNC Series DC SERO MOTORS www.pittman-motors.com US: + 267 933 25 Europe: +33 2 92 87 5 sia: +86 2 5763 58 Harleysville, P 438 EC57B-: Performance Data MOTOR DT SYMBO UNTS Rated oltage Rated Torque Rated oltage 2 Torque Constant (-, DC) oltage Constant (-, DC) nductance r r nl r r nl pk / / / / s/rad /k. 589.4.267 3.79.267.42.69 2.6 24. 593.4.334 4.73.334 3.5.66. 6.7 3.6.22 5 3.6 82.22.4.43 6.9.43 4.5.8.8.7 4. 2.9.8 595 2.9.8.4.528 7..528 5.53.65.6 86.42.658 9.32.658 6.89 8..7 4..8 2 66 5.42.. 8.8 4. 6.8 6.3.7 4. Recorded aaximum winding temperature at 25 C ambient and without heatsink. EC57B-: Performance Graph 7.5 SPEED () CONTNUOUS Rated Torque at 2 Speed (at Rated oltage 2) Current (at Rated oltage 2) S.O..C. (Max. Cont. Torque) S.O..C. (Max Speed) 3.5 3.5.5 CURRENT ().5 (7.8). (). (2.2).2.25 (35.4) (4).35 (.6) : / () S.O..C. = Safe Operating rea for Continuous duty NOTE: ll values specified at 25 C ambient temperature. Peak values are theoretical and for reference only. 2
US: + 267 933 25 Europe: +33 2 92 87 5 sia: +86 2 5763 58 Harleysville, P 438 DC SERO MOTORS 238XXXXNC Series BRUSHESS DC MOTORS EC57B-2: Performance Data MOTOR DT SYMBO UNTS Rated oltage Rated Torque Rated oltage 2 Torque Constant (-, DC) oltage Constant (-, DC) nductance r r nl r r nl pk / / / / s/rad /k.27 8.5 24..29 56 8.7.3 5.27.3 3.9.57 3.27 7.2. 595 7.2..442 6.26.442 3..8 25 5.7.3 593 5.7 8.3 7.95 8.6.3 2.27.25 8.25.698 9.89.698 7.3. 6 3.7.2 42 46 3.9 5..87.3.87 9..55 3. 3 2 2.3..3 43 53.7 3 2.3 3. 4.8 8.4 7.8 Recorded aaximum winding temperature at 25 C ambient and without heatsink. EC57B 2: EC57B-2: Performance Performance Graph 9./KPRM Graph 7 9 SPEED () CONTNUOUS Rated Torque at 2 Speed (at Rated oltage 2) Current (at Rated oltage 2) S.O..C. (Max. Cont. Torque) S.O..C. (Max Speed) 7 5 3 CURRENT (). ().2 (4).4.5 (7.8).6 (85.).7 (99.) : / () S.O..C. = Safe Operating rea for Continuous duty NOTE: ll values specified at 25 C ambient temperature. Peak values are theoretical and for reference only. 3
BRUSHESS DC MOTORS 238XXXXNC Series DC SERO MOTORS www.pittman-motors.com US: + 267 933 25 Europe: +33 2 92 87 5 sia: +86 2 5763 58 Harleysville, P 438 EC57B-3: Performance Data MOTOR DT SYMBO UNTS Rated oltage Rated Torque Rated oltage 2 Torque Constant (-, DC) oltage Constant (-, DC) nductance r r nl r r nl pk / / / / s/rad /k.33 47 2.55 24. 59 2.55..366.366 3... 8.9 2 8.9..4 6.22.4.57 33 2.6 7. 2.36.35 7..36. 7.95 8.45.93 25 5.6 2.29.35 5.6.29. 8. 8 7.4.7.5 2 4.5.23.37 53 469 4.8 8 5.22..879.879 9.2. 2.3 6 2.38 53 452 3. 8 5.85 4 2.4 4. 8 6.2.33 47 2.98.38 54 285 352.8.8.24 28.9.24 2.4 6.42 3 6.6 Recorded aaximum winding temperature at 25 C ambient and without heatsink. 7 EC57B-3: Performance Graph SPEED () CONTNUOUS Rated Torque at 2 Speed (at Rated oltage 2) Current (at Rated oltage 2) S.O..C. (Max. Cont. Torque) S.O..C. (Max Speed) CURRENT (). ().2 (4).4.5 (7.8).6 (85.).7 (99.).8 (3).9 (7) : / () S.O..C. = Safe Operating rea for Continuous duty NOTE: ll values specified at 25 C ambient temperature. Peak values are theoretical and for reference only. 4
US: + 267 933 25 Europe: +33 2 92 87 5 sia: +86 2 5763 58 Harleysville, P 438 DC SERO MOTORS 238XXXXNC Series BRUSHESS DC MOTORS EC57B-4: Performance Data MOTOR DT SYMBO UNTS Rated oltage Rated Torque Rated oltage 2 Torque Constant (-, DC) oltage Constant (-, DC) nductance r r nl r r nl pk / / / / s/rad /k 7 3 3.64.5 3.64.4 6.22.4..44 2.6 7 3.5 7.94 7.27.74 36 7 8. 3..5 8.. 8. 8 7.4.4.2 29.52 74 577 4.9 3.24.58 82 329 5.5 2 3.2 8 6.8 8.4.2 3.3 8 2.5 3.8..57 8 426 25 4.7 6.3 2.6.3 6. 4 5.5 4 2.52 74 5..6 85 246 36.92.235 33.3.235 2 3 3 9. Recorded aaximum winding temperature at 25 C ambient and without heatsink. 7 EC57B-4: Performance Graph SPEED () CONTNUOUS.2.4.6 (85.) Rated Torque at 2 Speed (at Rated oltage 2) Current (at Rated oltage 2) S.O..C. (Max. Cont. Torque) S.O..C. (Max Speed).8 (3) (42).2 ().4 (8) CURRENT () : / () S.O..C. = Safe Operating rea for Continuous duty NOTE: ll values specified at 25 C ambient temperature. Peak values are theoretical and for reference only. 5