Hollow Shaft Servo Motor Encoder

The YUHENG Hollow Shaft Servo Motor Encoder A-ZKD-12N-250BM is an incremental rotary encoder specifically designed for use with servo motors. The model number structure indicates its key specifications.

Specification Segment	Value	Detail
Series	A-ZKD	Identifies the general series of incremental hollow shaft servo encoders.
Shaft Type	12	Corresponds to the 12 mm hollow shaft inner diameter
Output Type	N	Likely denotes the specific electronic output signal
Resolution (PPR)	250BM	Indicates a resolution of 2500PPR
Encoder Type	Hollow Shaft	The motor shaft without requiring a coupling
Signal Phases	A, /A, B, /B, Z, /Z	Standard for incremental encoders
Power Supply	DC 5V	Depends on the full model code suffix

It is manufactured by Changchun Yuheng Optics Co., Ltd. (or similar Chinese industrial brands) and is primarily intended for measuring the speed and position of the motor shaft in industrial applications.