ncahill99
New Member
The shaft seals are supposed to be replaced every 5 years - presumably due to loosening up on the shaft. The seal size is 50.8mm (2 inch) external diameter, 31.75mm (11/4 inch) internal diameter and 9.52mm thickness made of nitrate. Now standard industrial seals of 50.8 x 31.75 x 9.4 are readily available at £2 each has anybody actually installed and used them? If so have they found any problems and do they have manufacturer details? The PB sleeve article mentions that the writer decided not to use industrial seals - why I wonder after such pioneering work!