PART # : KN511020 + wiring socket
The alternative part number is : KC510210, 51A2N00,  EBN01670,  KN511020 , KN511020

THIS LISTING INCLUDES :
1PCS BRAND NEW HIGH QUALITY POSITION ENCODER.

FIT FOR Barudan BEAT, BEDS, BEDYHE-ZQ, BEMRH-US, BEMR-UG, BEMR-YS, BENR, BENS, BENSH-YN, BENSH-YS, BENY, BESR-UF,BEX  ,BENRME-YN/YS,  BENSME-YN/YS embroidery machines.
With wiring socket. 

Marked TS5307N54.