A while ago I bought through ebay a NSK ball screw. It didn't come with any bearings to mount it. So I went to bearingsdirect.com and ordered 2 thrust bearings and a mounted bearing. After not receiving the order for over 2 weeks I called them and asked what the hold up was. They said they were on back order and they did not know when they would be in. But they were kind enough to charge my credit card when I made the order. I asked them why they decided not to tell me that they hadn't shipped my order and to credit my card to cancel the order.
So here I am still without bearings to mount my ball screw. Does anyone know where I can get thrust bearings with an internal diameter of 15mm besides bearingsdirect.com? I tried the usual places like MSCdirect and reidtool, but it seems they have mostly standard sizes.