The 6202-2RS and 6202-ZZ is a 15mm ball bearing that is found in many applications. The 6202-2RS ball bearing has two contact rubber seals one on each side of the ball bearing. The 6202-ZZ ball bearing has two non-contact metal shields one on each side of the ball bearing. If your application requires a 6202 ball bearing with only one seal or shield you can get this ball bearing and take one of the shields or seals off. This 15mm inch ball bearing is high quality and can take electric motor demands if needed. 6202 ZZ-2RS 15*32*11mm Deep Groove Ball Bearing Application: 1.Gearboxes,Instruments,Motors 2. Household Appliances,Internal Combustion Engines 3.Traffic Vehicles,Agricultural Machinery,construction machinery,oller skates