5D_Stoke @JasonL thank you that is very useful, esp the link to RMweb. I am not a GNR modeller, just gradually building a couple of Stirling singles using Kitmaster and other bits because I want them in a display cabinet, so GNR tenders are a bit of a mystery. However the lack of bearings is not a problem, I will probably buy one of the tenders in the new year.