2z bearing means deep groove ball bearing with double metal seals

2z bearing is means deep groove ball bearing with double metal seals.
2z bearing are suitable for high-speed or even extremely high speed operation, and are very durable without frequent maintenance. This type of zz bearing has a low coefficient of friction, high limit speed, diverse size range and forms, and is widely used in industries such as precision instruments, low-noise motors, automobiles, motorcycles, and general machinery.

2z bearing is the most widely used type of bearing in the mechanical industry. It mainly bears radial loads and can also withstand a certain amount of axial loads.
2z bearing is the most common type of rolling bearings. The basic zz bearing deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and a retaining structure.

There are two types of 2z bearing deep groove ball bearings: single row and double row. The deep groove ball structure is also divided into sealed and open structures. Open refers to the bearing without a sealed structure, while sealed deep groove balls are divided into dustproof seals and oil proof seals. The material of the dustproof sealing cover is steel plate stamping, which only plays a simple role in preventing dust from entering the bearing raceway. The oil proof type is a contact oil seal, which can effectively prevent the leakage of lubricating grease inside the bearing.
The type code for single row zz bearing deep groove ball bearings is 6, and the code for zz bearing double row deep groove ball bearings is 4. Its structure is simple, easy to use, and it is the most commonly produced and widely used type of bearing.
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