We are searching for reliable supplier of high and low speed dental bearings. At this time we are seeking low speed ABEC5 bearing of these sizes: 4mm x 7mm x 2mm Open Style and .133" X .250" X .071" Open Style. We require retainers made of PEEK or phenolic. Annual usage 5,000 pcs each. Please see our full product distribution at www.dentalpartshaus.com