GB/T 39644-2021 (English Version) PDF

Scope: This standard specifies the technical requirements and inspection requirements for tin-based alloy bearings used in rotating machinery, as well as the requirements for manufacturing, packaging, transportation and storage. This standard applies to hydrodynamically lubricated tin-based alloy bearings used in rotating machinery such as steam turbines, gas turbines, water turbines, generators, motors, compressors, fans, pumps, and rolling mills. Sliding bearings with similar operating conditions and service conditions can also refer to this standard.

GB/T 39644-2021 Referenced Document

GB 11120 Lubricating oils for turbines
GB/T 11352 Carbon steel castings for general engineering purpose
GB/T 1174 Cast bearing alloy*， 2022-10-12 Update
GB/T 1176 Casting copper and copper alloys
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 12948 Plain bearings--Metallic multilayer plain bearings--Destructive testing of bond for bearing metals
GB/T 13808 Wrought copper and copper alloys.Extruded rods and bars
GB/T 17107 Structural steel grades and mechanical property for forgings
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 18329.1 Sliding bearings Multi-layer metal sliding bearings Part 1: Ultrasonic non-destructive testing of bond quality for alloy thickness ≥ 0.5 mm*， 2023-11-27 Update
GB/T 18329.3 Plain bearings—Metallic multilayer plain bearings—Part 3: Non-destructive penetrant testing
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 2889.1 Plain bearings—Terms, definitions, classification and symbols—Part 1: Design, bearing materials and their properties
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
GB/T 699 Quality carbon structure steels
GB/T 728 Tin ingot
GB/T 9439 Gray cast iron parts*， 2023-09-07 Update

2021 GB/T 39644-2021 Plain bearings—Technical specifications for Tin-based alloy plain bearings of rotating machinery