Subscribe to Ogura's email newsletter and stay informed about the latest news and events

Troubleshooting Electromagnetic Clutches and Brakes

This 22 minute video will help you on your way to troubleshooting electromagnetic clutch and brake issues. The video is conveniently broken down into the following sections:
Introduction - 0:00
How they work - 0:58
Troubleshooting intro - 3:21
Engagement - 4:06
Will not engage - 4:21
Will not stay engaged - 8:15
Will not disengage - 9:55
Noise - 11:47
Noise - armature/hub - 12:34
Noise - bearings - 13:33
Noise - rotor contact - 15:42
Excessive slipping - 16:45
Excessive slipping from electrical - 17:19 Excessive slipping from contamination - 18:32
Excessive slipping from the application or lack of burnishing - 19:08

If you have other questions, feel free to visit our website www.ogura-clutch.com or email us directly at info@ogura-clutch.com


The following flow chart will help you to quickly identify many of the common questions concerning a non-functioning electromagnetic clutch or brake. If this quick reference guide is not helpful, please e-mail, fax or call us directly so we can assist you.

HAS IT EVER WORKED?
MECHANICAL ELECTRICAL MECHANICAL ELECTRICAL
arrowing pointing down arrowing pointing down arrowing pointing down arrowing pointing down
Armature Worn Out?  Fuse Blown? Gap too Large? AC In?
arrowing pointing down arrowing pointing down arrowing pointing down arrowing pointing down
Friction surface galled? Open Coil? Burr on Spline? DC In?
arrowing pointing down arrowing pointing down arrowing pointing down arrowing pointing down
Oil on Facing? Shorted Coil? Sized Properly? Good Fuse in Place?
arrowing pointing down arrowing pointing down arrowing pointing down arrowing pointing down
Worn Spline? Wire Broken? Key in Place? Torque Controls Set Properly?
arrowing pointing down arrowing pointing down   arrowing pointing down
Non-Mated Parts? Switch Failure?   Switch Wired Properly?
arrowing pointing down     arrowing pointing down
Application Changed?     Coil Good?
arrowing pointing down      
Rust on Armature?