Ring Type Needle bearings are obliged to undergo BIS Certification, according to IS 4215:1983. The standard identifies the limits of dimension, tolerances, and designations of the ring type needle bearings that are to support massive radial loads at small design areas. It establishes the main dimensions, series of dimensions and accuracy parameters in order to guarantee interchangeability and adequacy of fitting in to shafts and housings. IS 4215:1983 focuses on the precision of the dimensions and the controlled manufacturing activities in order to achieve a consistent load distribution, lower friction and steady performance under different operating conditions. The standard also has marking, identification and dimensional verification provisions to ensure traceability and conformity. The BIS certification gives manufacturers and end users an assurance that these bearings comply with national standards of dimensional consistency, durability and other suitability in automotive and industrial purposes.
