Looking for producer of insert bearings[USA] We are looking for some specific insert bearings that must have the following specifications. 1. They must have removable seals. We are doing a special dry lube process that requires the removal of the shields or seals from these bearings and we would like to be able to replace them. These bearings are going into Go-Kart rear wheels and need to have protection from dirt and small particles that are on the tracks. 2. Must be oil lubed, No Grease. The bearing sizes we are interested in are: UC206-20 (1 1/4"x62mmx1 1/2") Chrome Steel Insert, Spherical OD, set screw lock. UC206-20C " " " " with silicon Nitride Balls. UC206-30mm (30x62x38.1) " " " UC206C-30mm " " " " with Silicon Nitride Balls. UC207-22 (1/3/8"x72x42.9) " " " UC207C-22 " " " " with Silicon Nitride Balls. UC207-35mm (35x72x42.9) " " " UC207C-35mm " " " " with Silicon Nitride Balls. UC208-40mm (40x80x42.9) " " " UC208C-40mm " " " " with Silicon Nitride Balls. UC209-45mm (45x85x42.9) " " " UC209C-45mm " " " " with Silicon Nitride Balls. UC210-50mm (50x90x51.3) " " " UC210C-50mm " " " " with Silicon Nitride Balls. SB206-30mm (30x62x30) " " " SB206C-30mm " " " " with Silicon Nitride Balls. SB207-35mm (35x72x32) " " " SB207C-35mm " " " " with Silicon Nitride Balls. SB208-40mm (40x80x34) " " " SB208C-40mm " " " " with Silicon Nitride Balls. SB208/10-50mm (50x80x34) " " " SB208/10-50mm " " " " with Silicon Nitride Balls. SB209-45mm (45x85x41.2) " " " SB209C-45mm " " " " with Silicon Nitride Balls. SB210-50mm (50x90x43.5) " " " SB210C-50mm " " " " with Silicon Nitride Balls. This is the full listing of the insert bearings we require. Also, can you find us a supplier that can make these bearings with Peek retainers?