Overview
ISO 702-2:2007 - "Machine tools - Connecting dimensions of spindle noses and work holding chucks - Part 2: Camlock type" - is an international standard that specifies the sizes and tolerances for interchangeability of cylindrical spindle noses and the corresponding connecting faces of face plates or work-holding chucks using the camlock system. Published as the second edition (2007-10-15), the document replaces the earlier 1975 edition and standardizes mechanical interfaces to ensure compatibility across manufacturers.
Key Topics
- Scope and interchangeability
- Applies to camlock-type spindle noses, face plates and chucks.
- All dimensions and tolerances are expressed in millimetres.
- Provides for interchangeability between metric and inch-series spindle noses and face plates (internal components and screws may differ).
- Sizes and dimensional data
- Defines sizes (Size Nos. 3 to 20) and corresponding dimensional tables for critical features.
- Includes general tolerances (note: untoleranced dimensions have a general tolerance of ±0.4 mm).
- Detailed component dimensions
- Spindle noses - primary mating geometry and reference lines.
- Cams - dimensions, slopes and fit parameters for camlock elements.
- Studs - stud dimensions and thread specifications used to attach accessories.
- Face plates - mating-face dimensions, two face-plate types and marking requirements.
- Accessories - standardized sizes for hexagon-socket screws, stop-bolts, cheese-head screws, etc.
- Practical specification notes
- Type identification of face plates is required.
- The standard is part of the ISO 702 series (other parts cover conical, bayonet, and cylindrical connections).
Applications
ISO 702-2 is used wherever consistent mechanical coupling between spindles and workholding devices is required:
- Machine tool designers specifying spindle nose geometry for camlock chucks.
- Chuck and face-plate manufacturers producing parts to a common interface for interchangeability.
- Maintenance and retrofit teams replacing or upgrading chucks, face plates or spindle noses.
- Procurement and quality control creating acceptance criteria and inspection plans for machine-tool accessories.
- CNC shops and job shops ensuring that chucks sourced from different suppliers will mate correctly with existing spindles.
Benefits include faster equipment changeovers, reduced custom machining, and simplified spare-parts management.
Related Standards
Keywords: ISO 702-2, camlock spindle nose, spindle nose dimensions, workholding chucks, face plates, machine tool standards, interchangeability, cams and studs.
Open preview (PDF)Machine tools — Connecting dimensions of spindle noses and work holding chucks — Part 2: Camlock type
