A: The name of the GB/T 276-1994 standard is "Rolling bearing deep groove ball bearing dimensions". The standard content is to specify the inner diameter, outer diameter, width and minimum assembly chamfer of each series of deep groove ball bearings. These dimensions are the basic basis for the user to select the bearing, and are also several dimensions that must be guaranteed by the bearing manufacturer. It is also the basic standard to ensure that bearings are standard products.

There are many similar standards, such as:

GB/T 281-1994 Rolling bearings Self-aligning ball bearings Dimensions

GB/T 283-2007 Rolling bearings Cylindrical roller bearings Dimensions

GB/T 285-1994 Rolling bearings Double row cylindrical roller bearings Dimensions

GB/T 288-1994 Rolling bearings Spherical roller bearings Dimensions

GB/T 290-1998 Rolling bearings Drawn cup needle roller bearings

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