Add grease zerk to axle or not?

Fair enough- I presumed moderation is the key. My failed bearing may have had two causes. The inner seal was broken.... grease was all over the backing plate and innards of the brake system. The main culprit though (found water mixed grease on the tip of the spindle) was the cheapo plastic grease caps. Two were cracked severely and the two uncracked ones removed (too) easily with just two fingers. I presume they are where the water got in but it is no longer an issue as they are history! On a side note, I read somewhere about using a section of pvc pipe to install the caps and boy is that slick!

Thank you again for the reply.