176000型轴承(图1)在国外名称较多,如西德国家标准DIN1975称为四点轴承;日本工业标准JI5 B0104—78称为四点接触球轴承;美国国家标准协会ANSIB 34—1973和英国RHP公司,称为双半内圈单列向心推力球轴承;瑞典SKF公司称为四点接触(双向)球轴承。我国GB294修定稿中定名为双半 176000-type bearings (Figure 1) in more foreign names, such as the West German national standard DIN1975 known as the four-point bearing; Japanese industrial standard JI5 B0104-78 known as the four-point contact ball bearings; American National Standards Institute ANSIB 34-1973 and the United Kingdom RHP company, known as double-half inner single row radial ball bearings; Sweden SKF company called the four-point contact (two-way) ball bearings. China’s GB294 revised draft named double half