ISO 464:2015 PDF

Overview

ISO 464:2015 - "Rolling bearings - Radial bearings with locating snap ring - Dimensions, geometrical product specifications (GPS) and tolerance values" standardizes the geometry and tolerances for snap ring grooves, chamfers and snap rings used with radial rolling bearings. It applies to bearings in dimension series 18 and 19 and diameter series 0, 2, 3 and 4 (excluding series 00, 82 and 83), as referenced in ISO 15. The third edition implements Geometrical Product Specifications (GPS) principles to ensure clear, unambiguous technical product documentation.

Key topics and technical requirements

• Snap ring groove dimensions and tolerance values: nominal sizes, two-point size deviations and limit deviations for groove diameter, width and location.
• Chamfer dimensions: required chamfer ("r") on the outer ring side of the snap ring groove and related tolerance rules (with maximum chamfer references in ISO 582).
• Snap ring dimensions and tolerances: inside/outside diameters, section height, thickness and mounted gap for the matching snap rings.
• GPS application: specifies how to indicate dimensional and geometrical characteristics on drawings using ISO GPS rules (ISO 1101, ISO 14405-1). Two-point size is the default specification operator.
• Measurement and conformity guidance: references traditional measuring techniques and measurement uncertainty principles; default decision rules per ISO 14253-1 are to be applied.
• **Special guidance for small bearings (D