It is Fully Motorised for Eccentricity - checking Roller are coupled with electric motor & Taper Checking is also coupled with electric motor with dial Gauge.
Machine can be operated with ON-OFF switch for eccentricity and Reverse- Forward switch can be used for Taper Checking.
Grinding Principle - Wheel head is stationery and table is on TO and FRO movement with proxy and limit switch.
No manual error will be in checking the Top Roller.