OverviewBD-1338 is a high-speed brushless DC motor designed for compact industrial applications. Data are measured with an aluminium board (57×57×5 t) attached to the motor flange. Gearhead and encoder can be fitted as optional accessories to adapt torque and positioning needs.
Key specifications- Model: BD-1338
- Manufacturer: Citizen Chiba Precision
- Rated voltage: 24 ± 5% V
- Rated output: 6.6 W
- No-load speed: 27,600 rpm (motor spec)
- Rated speed: 23,450 rpm
- Max continuous torque: 2.68 mN·m
- Weight: 26 g
Motor electrical / mechanical data- Number of poles: 2
- Line resistance: 10.3 Ω
- Torque constant: 8.38 mN·m/A
- Back EMF constant: 0.87 V/K rpm
- Max continuous current: 0.32 A
- Recommended drivers: BSD-36 series (max speed) / 0512-△ 014 (5,000 rpm)
Encoder (optional)- Type: Magnetic incremental
- Supply: DC +5V ±5%
- Current consumption: 30 mA
- Channels: 3 (A, B, Z)
- Pulses: 512 P/R
- Output: Differential & TTL (High ≥ 3.2V / Low ≤ 1.0V)
Gearhead (optional)- Series: ZCP planetary (φ13)
- Reduction ratios available: 4 / 16 / 24 / 64 / 96 / 144* / 256* / 384* / 576* / 864*
- Typical effects: increased output torque and reduced speed per selected ratio; consult ratio table for exact torque, speed and length (L)
Applications- High-speed micro-mechanisms
- Precision actuators and instrumentation
- Robotics end-effectors and compact drives
Notes- Specified values measured with an aluminium board (57×57×5) mounted to the flange.
- Performance depends on driver and encoder specifications.
- For gearhead ratios marked with *, do not exceed the allowable output torque of the gearhead.