According to IS 6456:1972, BIS Certification is mandatory to Double Row Radial Ball Bearings. The standard of the Indian has been made to define the boundary dimensions, series description and the dimensions needed on the double row radial bearings which are to be used to assist the higher radial loads and moderate axial loads in each direction. The standard specifies the main dimensions, dimensional series, tolerance limits and accuracy classes to assure interchangeability and similar operation in a broad spectrum of mechanical and industrial work.
IS 6456:1972 focuses on the aspect of dimensional uniformity and tolerance control to facilitate fitting well on the shafts and housings thus allowing easy working, balanced distribution of load, and increased service lives. The specification standardizes key design parameters to enable compatibility of products produced by other manufacturers as well as to ensure that they work reliably under different load and speed conditions. The standard also defines specifications regarding the designation systems, marking and verification of the dimensions to retain the traceability and compliance to the requirements.
The certification of ball bearings as a BIS product under the IS 6456:1972 standard gives assurance to both the manufacturer, OEM, and the end user that the ball bearing of the double row radial complies with national standards of dimensional accuracy, structural integrity, and performance suitability. Compliance makes it reliable in use in automotive assemblies, industrial equipment and heavy engineering equipment in which the ability to carry higher loads and longer operational stability is important.
