GD&T Total Runout Definition

In GD&T, total runout is a complex tolerance that controls a feature's straightness, profile, angularity, and other geometric variation.  Total runout is different than runout because it applies to an entire surface simultaneously instead of individual circular elements.

An example of total runout tolerance is shown below.  The top figure shows a total runout tolerance applied to a horizontal surface.  The boxed symbols can be read "this entire surface must have full indicator movement (FIM) of less than 0.1 relative to datum A".  The lower figure shows how total runout is verified.  Note that the indicator is applied all along, and perpendicular to the surface to which the tolerance is applied.

total_runout3

Download CAD Software

Video Tutorial


"First off I was completely satisfied with the quality of the parts I recieved. I was more impressed by the business model of this company. I work for a large manufacturer of heavy machinery. I was telling my co-workers (other engineers) about my experience with this company and they were shocked. One of them has direct experience trying to get ..."
- William Mische
PCB CAD program

Design printed circuit boards online at our PCB division - Pad2Pad.com

Design services
Visa Mastercard Amex Discover
eMachineShop.com | 31 Industrial Ave. | Mahwah, NJ 07430 | Phone 201-962-7511 | Questions? Contact us.

© 2014 eMachineShop.com | Admin | Site by Paradigm Site Ensemble CMS Copyright © 2014 Paradigm New Media, LLC. All rights reserved.