For those of you unfamiliar with the operation of a stump grinder this is my issue with finding replacement bearings---at a realistic price--- for its cutter wheel shaft. Without going into boring technical details, the bearings I use are designed with, what appears to be a unique feature. This feature allows an adjustment to be made to eliminate unwanted play owing to fair wear. It is an American bearing of an imperial measurement. It seems like this particular manufacturer has cornered its market with this adjustment feature, and its distributors here in the UK and in the EU, are asking rip-off prices as a consequence of no competitors offering their own very fine products without this adjustment feature, which lengthens a bearings service life. A stump grinder operates "at the coal face" in an extremely hostile environment for bearings to operate within, which is why the OEM of this grinder decided appropriately to use this particular bearing. This story isn't only about my issue of not finding a competitive price, but a classic example of non-competitive pricing!