Joined: Jan 2009
Posts: 43,982
Likes: 6,170
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Nonsense. Once or twice a year sounds insane, even in mud, unless copious amounts of mud somehow get in there. What caused the failure? Let us know when you disassemble it.
As DieselDan said, you may need to get your BB shell refaced. The outer surfaces may not be paralllel, which would put wear on the bearing surfaces.