SKF manufacture automatic lubricators that can be set to distribute as much or as little as required, get in touch with Northwest Bearings they've been great for me in the past. I don't think the lubricators are on their site yet but I know they have access to all SKF products. Happy Hunting!
Be sure to check the technical info between both brands as you will most certainly find some slight differences in the dimensions. See www.northwestbearings.co.uk who have a great website.
