ISO 582:2026

Overview

ISO 582:2026 - Rolling bearings - Chamfer dimensions - Geometrical product specifications (GPS) and values is an international standard published by ISO. The standard specifies the chamfer least material boundary for ring and washer chamfers of metric series rolling bearings, determined in relation to the corresponding radius maximum material boundaries. These specifications play a vital role in ensuring product consistency, interchangeability, and reliable function in rolling bearing assemblies across industries. The document also provides recommendations for corresponding housing and shaft fillet radii to avoid assembly issues.

Key Topics

• Chamfer Least Material Boundary: Defines the minimum material extent of ring and washer chamfers for metric rolling bearings, providing clear criteria for design and inspection.
• Radius Maximum Material Boundaries: References the established maximum radius limits found in related ISO standards ([1]-[7]), ensuring bearings fit and function correctly with interfacing parts.
• Fillet Radii Recommendations: Includes guidelines for housing and shaft fillet radii to minimize installation incompatibility and avoid bearing misalignment or stress concentration.
• Symbols and Notation: Standardizes symbols for physical quantities and chamfer dimensions, aligning with the latest ISO vocabularies and GPS nomenclature for technical product documentation.
• Graphical Representation: Provides visual depictions (figures and tables) for the dimensional relationships and boundary conditions of bearing chamfers, assisting designers and engineers in correct implementation.
• Transition Specification: Incorporates GPS transition specifications according to ISO 8015 and ISO 21204, ensuring harmonized documentation and communication in engineering drawings.

Applications

ISO 582:2026 is essential for professionals who design, manufacture, and assemble rolling bearings, including:

• Bearing Manufacturers: Use this standard to guarantee chamfer dimensions comply with internationally accepted specifications, aiding quality assurance and interoperability.
• Machine Designers: Reference chamfer dimensions when specifying bearings for new equipment, ensuring compatibility between bearings, housings, and shafts, and optimizing installation procedures.
• Quality and Inspection: Inspectors utilize the defined least and maximum material boundaries to verify product conformity, reduce variability, and support compliance audits.
• Purchasers and OEMs: Rely on ISO 582:2026 to specify and source bearings that will properly integrate with other components, cutting down on fitment issues and rework during assembly.
• Maintenance and Repair: Utilizes chamfer and fillet recommendations to select suitable replacement parts and avoid installation errors that could compromise bearing life or cause premature failure.

Related Standards

The specifications and methods outlined in ISO 582:2026 are closely connected to the following ISO standards addressing rolling bearing dimensions and product specification principles:

• ISO 15 - Radial bearings - Boundary dimensions
• ISO 104 - Thrust bearings - Boundary dimensions
• ISO 246 - Cylindrical roller bearings, separate thrust collars
• ISO 355 - Tapered roller bearings - Boundary dimensions
• ISO 464 - Radial bearings with locating snap ring - GPS and tolerance values
• ISO 12043 - Cylindrical roller bearings - Chamfer dimensions for loose rib and non-rib sides
• ISO 12044 - Angular contact ball bearings - Chamfer dimensions for outer ring non-thrust side
• ISO 8015, ISO 21204, ISO 22872 - Geometrical product specifications, symbols, and transition specifications

Adhering to ISO 582:2026 facilitates global supply chain compatibility, reduces engineering errors, and upholds performance reliability in rolling bearing applications by standardizing chamfer dimensions and geometric specifications.