Recently acquired a Studer rhu500 cylindrical grinder which has been laid up for years, after changing the oils I started it and there is a large oil leak from the main taper bearing on the spindle, after removing the grinding wheel you can see two annular groves in the end of the bronze bearing the first has an oil return drilling while the second has four holes at the bottom to drain oil that has made it that far, there is no seal here and very little room for one. The spindle seems to be set ok with no obvious play or ware, The drain hole is clear, has anyone had this problem?
I know this is an old grinder but does anyone have an internal grinding attachment for one?
I know this is an old grinder but does anyone have an internal grinding attachment for one?