... Voltage. 1. FEATURES of IBEST Shaft Incremental rotary encoder (ISN4005) : * Solid Shaft Incremental Rotary Encoder* Outside diamter:40mm; Solid shaft: ... RPM)* Protection IP54.2. Ordering Code: (Shaft Incremental rotary encoder ISN4005)Model and TypeEncoder diameterHolf of the axe diameterAxe ... !IBEST ELECTRICAL CO.,LTD Shaft encoder ,Incremental encoder ,rotary encoder ,rotary switch ISN4005(IBEST)