Quote:
Originally Posted by Walter White
I have been doing my oil seal test on a Nachi 6204 NSE. After 24 hours it shows no sign of leaking. This is the best result I have seen so far. Some bearings fill with oil after only a few minutes, like the one below, just 3 minutes into test.
I have an NSK DDU on order. |
That is why I chose the NSE. In some bearings the rubber seal comes close to, but does not seal the inner race. The Nachi 6204 NSE seals the inner race, and uses higher temp non metallics than the standard bearing. I specifically did not use a bearing that does not completely seal the inner race. Check out the bearing manufacturers spec sheets to tell one from the other, they look similar. The pressure differential between the inside and outside of a non vented IMS will be much higher than the centimeter or so of oil pressure you are seeing in your test. The differential pressure with a vented IMS will be ~zero.