Rotating Platform – Inertia Accessory

Product Code: ME-8953


A disk and a ring permit several experiments in rotational inertia. The disk may be rotated about several axes. When used in conjunction with the adapter, experiments using the parallel-axis theorem may be performed by moving the disk off from the center of rotation. The ball bearing on one side of the disk permits it to rotate freely for some experiments, while a “D” hole on the other side prevents rotation about the disk axis.

What’s Included

  • 1x Heavy-Grade Plastic Disk (22.9 cm diameter, 1500 g)
  • 1x Metal Ring (12.7 cm outside diameter, 1420 g)
  • 1x Disk Adapter
  • 1x Super Pulley and Support Rod


Small parts. Not for children under 3 years.

Support Documents

Rotational Inertia Accessory Manual

Manual Downloads

Product Manuals for the Rotational Inertia Accessory (ME-8953)