Balancing of Rotating Masses Apparatus



Equipment is designed for carrying out the experiment for balancing 8 rotation mass systems. The apparatus consists of a steel shaft fixed in a rectangular frame. A set of four blocks with a clamping arrangement is provided for static balancing. Each block is individually clamped on shaft and its relative weight is found out using cord and container system in terms of number of steel bans. For dynamic balancing a moment polygon is drawn using relative weights and angular and axial position of blocks is determined. The block are clamped on shaft is rotated by a motor to check dynamic balance of the system. The system is provided with angular and longitudinal scales and is suspended with chains for dynamic balancing.


• Drive Motor - FHP Motor, variable speed, with speed controller
• Balancing Weight - 4 Nos. of Steel with different sized eccentric Mass for varying unbalance
• Rotating Shaft – Material -Steel
• 0.5 kW, 220V, Single Phase.


1. To balance the masses statically and dynamically of a single rotating mass system.

2. To observe the effect of unbalance in a rotating mass system.

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