UCPA201-8, UCTB201-8, UCPA202-10, UCTB202-10, UCPA204-12, UCTB204-12, UCPA205-16, UCTB205-16, UCPA206-20, UCTB206-20, UCPA208-24, UCTB208-24, Tapped Base bearings, Taped Base Bearings and Tap Base Bearings from USA Bearings & Belts, www.usabearingsandbelts.com, and www.mybearingstore.com.