ISO 603-2:1999

Overview

ISO 603-2:1999 is part of the ISO 603 series on bonded abrasive products - dimensions. Part 2 specifically defines the nominal dimensions (in millimetres) and basic form factors for grinding wheels used in centreless external cylindrical grinding. It standardizes wheel shapes, key dimensional relationships (for example, recess depth limits), and the required designation elements to identify a compliant grinding wheel.

Key topics and technical requirements

• Scope and wheel types: Dimensions are given for three wheel types commonly used in centreless external cylindrical grinding:
  • Type 1 - flat wheel
  • Type 5 - single-recess wheel
  • Type 7 - double-recess wheel
• Nominal dimensions: Tables and figures in the standard specify nominal diameters, thicknesses and hub/driving-wheel geometry. Dimensions are expressed in millimetres.
• Recess depth rule: The depth of any recess (F) shall be less than or equal to half the wheel thickness (T) - a key dimensioning constraint in the standard.
• Drive (driver) wheels: Separate dimensional provisions are given for drive wheels used to power the workpiece in centreless grinding setups.
• Designation format: ISO 603-2 prescribes the complete designation order for a product (type, dimensions, constituent specifications, maximum operating speed, etc.) and provides an example showing how to mark a wheel unambiguously.
• Quality-related references:
  • Tolerances and runout: Referenced to ISO 13942 for limits and tolerances of wheel runout.
  • Static balancing: Referenced to ISO 6103 for wheel balancing and control.
  • Marking and constituent specs: Manufacturer specifications and marking follow ISO 525.
• Notes and special cases: The standard indicates certain sizes are intended only for specific uses (for example, some entries are designated for camshaft grinding) and that very thick wheels (≥ 200 mm) may be supplied in multiple parts.

Applications

• Standardizes the dimensions and identification of wheels used in:
  • Centreless external cylindrical grinding machines
  • High-volume shaft, bearing journal and camshaft grinding operations
  • Production grinding in automotive, aerospace, bearing and general engineering industries
• Helps ensure wheel interchangeability, correct mounting, safe maximum operating speeds, and consistent procurement specifications.

Who should use this standard

• Grinding wheel manufacturers and suppliers
• Machine builders and OEMs for centreless grinders
• Purchasing/specification engineers and quality assurance teams
• Toolroom and shop floor engineers involved in wheel selection, mounting and maintenance

Related standards

• ISO 525 - Bonded abrasive products: general requirements
• ISO 6103 - Static balancing of grinding wheels
• ISO 13942 - Limits and tolerances of wheel runout (referenced)
• ISO 8486 (parts 1 & 2) - Grain size distribution designation

Keywords: ISO 603-2:1999, bonded abrasive products, grinding wheels, centreless external cylindrical grinding, wheel dimensions, designation, tolerances, balancing, ISO 525.