1. High speed, low noise, long life 2. High temperature resistance, high precision, excellent products 3. Bearing collar: contains inner ring and outer ring; high quality steel support, high efficiency to extend bearing life 4. Rolling body: transfer the load between inner and outer ring 5. Cage: reduce friction heat, optimize the load, easy to disassemble 6. Integral seal: greatly prolong the bearing life, keep the lubricant inside the bearing to keep the contaminants out