Precision optical loads place extremely stringent demands on motors: color wheels and Fresnel lens disks require high radial runout precision to prevent optical path drift; polygon mirrors and diffraction disks rely on ultimate rotational speed stability to ensure scanning linearity. Nidec URD/FDB fluid dynamic bearing motors are purpose-built for such applications. The outer rotor structure perfectly matches the load inertia, while micron-level axial control and G6.3 dynamic balancing process completely eliminate vibration and noise at high speeds, ensuring long-term stable operation across a wide temperature range from -40°C to 85°C — making them the ideal power core for optical scanning systems.

The table below summarizes the core parameters of commonly used models, with particular focus on the most user-concerned data such as load weight and load inertia, helping you quickly identify the appropriate motor series.


ModelSupply Voltage (V)Rated Speed (rpm)Max Load Weight (g)Max Load
Inertia (g·cm²)
Axial Play (mm)Kt (Torque Constant) (N·m/A)Reference Life (h @ 85°C)
10S 220H280121080058.00.500.005120000
10S 220L270A121080058.00.500.003220000
10S 220Q1005500058.00.500.005120000
17S 220E12012108001556.90.550.005620000
17S 220H29012108001356.90.550.005620000
17S URD FFC12108001556.90.550.00630000
17S 220H270550001556.920000
17S 220V050550001556.920000
28S 22030801210800202340.00754000
A2240N02361080010010000.050.02230000
B2000N031214400402000.050.004820000
B2245N0153600152000.050.006650000
B2044N01A53600152000.050.005450000
CC04OS0112108009.829.80.100.00220000