AMM80 bearingless encoders 

Absolute kit-encoders
Precise optical sensing
Single-turn resolution up to 23 bit
Electronic multiturn counter
Hollow shaft up to Ø45 mm

Output/InterfaceBiSS-C/SSI, RS485, 1Vpp sin/cos
Encoder versionModular kit-encoder
Shaft diameter45 mm max.
ResolutionAbsolute singleturn up to 23 bit, multiturn 65536 rev.
Incremental 1024 PPR AB /AB
ApplicationRobotics