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This Indian Standard specifies the requirements for thick-walled plain bearings with a flange design, manufactured as full round components without any joint or slit. Flanged bearings provide additional axial support and accurate positioning of shafts, making them especially suitable for applications where both radial and axial loads are encountered. The standard outlines requirements for the raw material, ensuring that the bearing has adequate hardness, toughness, and wear resistance to withstand continuous operation under load. It prescribes dimensional tolerances and roundness requirements to guarantee accurate fitting and smooth interaction with mating parts. Surface finish parameters are also specified to minimize friction and extend service life. IS 14478:1997 includes detailed inspection and testing procedures such as hardness testing, dimensional verification, and structural checks for defects like cracks or porosity. It further defines guidelines for manufacturing processes, ensuring uniformity, reliability, and defect-free production. Marking requirements ensure proper identification and traceability, enabling manufacturers to maintain consistent quality across production batches.

BIS certification under IS 14478:1997 provides confidence in the quality and reliability of flange-type bearings. For manufacturers, it ensures compliance with regulatory requirements, enhances credibility in domestic and global markets, and demonstrates a strong commitment to quality assurance. Certification also improves market competitiveness by signaling adherence to recognized standards. For industries and users, certified flange-type bearings deliver multiple benefits, including reliable performance under both radial and axial loads, reduced risk of equipment downtime, and longer operational life of machinery. Since these bearings are often deployed in automotive engines, gearboxes, compressors, and heavy machinery, certification helps prevent premature failures, costly repairs, and operational hazards. Additionally, BIS certification assures uniformity in supply chains by eliminating substandard or counterfeit products, thereby protecting end-users and industries from potential risks. Certified bearings promote efficiency, safety, and durability in high-demand mechanical systems.