GB/T 1156-1979

This standard specifies the types and dimensional specifications for sleeve-type drip-feed lubricating cups, which are used to deliver controlled amounts of lubricant to bearings and moving parts in mechanical systems. It is applied in the design and manufacturing of industrial machinery, such as machine tools, textile equipment, and agricultural machinery, where manual or gravity-fed lubrication is required. The standard ensures interchangeability and compatibility of these cups across different equipment by defining standardized connection sizes and shapes.