So what caused the failure?
Since these duplex bearings are widely used in TR assemblies, their failure rate should be very low unless they are not installed properly.
Well, all bearings have some sort of life / failure profile. Off the cuff, I would venture that this application was quite arduous for a relatively small, sealed lubricant bearing so, I would presume that this bearing could fail quite quickly in use after loss of lubricant, or other causes of failure. Can anyone with type knowledge comment if any method of monitoring is used on this bearing?
OAP