High power density motor
The 8LS-4 series is the most advanced version in terms of technology within the LS servo motor range. This new series makes no compromises on any of the key aspects expected from a servo motor: very high power density, exceptional energy efficiency, and outstanding precision and dynamics.
All benefits at a glance
High efficiency
With energy efficiency exceeding 95% depending on the duty cycle, machine operating costs can be significantly reduced through optimized energy usage.
High power density
Thanks to the latest winding technologies introduced in this new generation of motors, the active part of the motor has been reduced like never before, allowing for an increase in output power by a factor of up to 5, for the same volume compared to the previous generation
High accuracy
With an optimized motor design that minimizes cogging torque, combined with an ultra-high bandwidth encoder, B&R motors offer exceptional controllability and outstanding precision at the output shaft increasing the production quality
Function and components
Technical specifications
Motor options:
- EnDat 2.2
- New compact connector
- Oil seal
- Holding brake options
- Shaft end options
- Fan option
| Motors | Nominal Speed (nN [rpm]) from | Nominal Speed (nN [rpm]) to | Stall torque (M0 [Nm]) from | Stall torque (M0 [Nm]) to | Flange dimensions [mm] | Centering diameter [mm] | Shaft diameter [mm] |
| 8LSA2... | 4500 | 8000 | 0,4 | 1,5 | 58 x 58 | 40j6 | 9k6 (11j6) |
| 8LSA3... | 3000 | 6000 | 2,4 | 5,4 | 91.3 x 91.3 | 80j6 | 14k6 (19k6) |
| 8LSA4... | 3000 | 6000 | 4,7 | 12 | 100 x 100 | 95j6 | 19k6 (24k6) |
| 8LSAB... | 3000 | 4500 | 7,00 | 20,00 | 116 x 116 | 110j6 | 24k6 |
| 8LSA5... | 2200 | 4500 | 12,00 | 29,00 | 142 x 142 | 130j6 | 24k6 (32k6) |
| Motors | Nominal Speed (nN [rpm]) from | Nominal Speed (nN [rpm]) to | Stall torque (M0 [Nm]) from | Stall torque (M0 [Nm]) to | Flange dimensions [mm] | Centering diameter [mm] | Shaft diameter [mm], reinforced bearing |
| 8LSC4... | 3000 | 6000 | 8,5 | 15,6 | 100 x 100 | 95j6 | 19k6 (24k6) |
| 8LSAB... | 3000 | 4500 | 9,10 | 26,00 | 116x 116 | 110j6 | 24k6 |
| 8LSA5... | 2200 | 4500 | 15,60 | 37,70 | 142 x 142 | 130j6 | 24k6 (32k6) |