2RZ: both sides with a steel skeleton of nitrile rubber (NBR) low-friction seal ring deposit 2Z: both sides with a stamped steel dust cover 2ZNR: outer ring with snap ring groove and snap both sides with stamped steel dust Cover with a common suffix ball gap: C3: radial clearance greater than Normal N: outer ring with snap groove NR: outer ring with snap groove even snap ring Z: on one side with a pressed steel dust cover ZNR: the outer ring with snap groove and snap ring of deep groove ball bearings, snap ring groove on the other side with a pressed steel shields 2Z: both sides with a stamped steel dust cover 2ZNR: outer ring with snap groove and snap ring , stamped steel dust cover both sides with deep groove ball bearings mainly take radial load, but also to support radial and axial load. When the only radial load, the contact angle is zero. When the deep groove ball bearings with a larger radial clearance, the performance with angular contact bearings can bear large axial load, deep groove ball bearing friction coefficient is small supply double ball deep groove ball bearings, limit speed is also high. Deep groove ball bearings are most representative of the rolling bearing original FAG deep groove ball bearings agent, widely used. For high speed or high speed operation, and very durable, without regular maintenance. This kind of bearing friction coefficient is small, extreme high speed, simple structure, low cost, easy to achieve high manufacturing precision. Size range and diverse, used in precision instruments, low noise motors, automobiles, motorcycles and general machinery industries, the machinery industry, the most widely used class of bearings. The main radial load, but also can withstand a certain amount of axial load supply U-groove deep groove ball bearings | Long Yu (Online) | deep groove ball bearings provided by the Dongguan City, Long-Bearing Machinery Co., Ltd. Dongguan City, Long-Bearing Machinery Co., Ltd. (long-yu.net) Dongguan, Guangdong, thrust roller bearings leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the Long-leadership with the staff warmly welcome all inquiries negotiations to create a better future Long Yu.