DEFSTAN 02-305/2(2003) : 2003

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Categories of Defence Standard
Related Documents
Health and Safety
Additional Information
CONTENTS
SECTION 1 PERFORMANCE SPECIFICATION
          1.1 Basic Requirements
               1.1.1 Design Objectives
               1.1.2 Design Basis
SECTION 2 NATIONAL/INTERNATIONAL REGULATIONS
SECTION 3 MILITARY STANDARDS/REQUIREMENTS
          3.1 Design Justification, Drawings and
               Information Required
               3.1.1 General
               3.1.2 Design Justification Process
                      3.1.2.1 Information Required
               3.1.3 Drawings and Information Required in
                      Support of a Gearbox Tender
                      3.1.3.1 Information Required
               3.1.4 Quality and Format
               3.1.5 Drawings and Information Required for a
                      Design Contract or Gearbox Order
                      3.1.5.1 Preliminary Design Information
                              Required
                      Table 3.1 Information to be Supplied by
                                Prime Contractor in Support of a
                                Design Contract
               3.1.6 Final Design
                      3.1.6.1 Design Justification and Drawing
                              Standards
                      3.1.6.2 Information Required
                      3.1.6.3 Additional Information
                      3.1.6.4 Quality Assurance of the Design
          3.2 Materials
               3.2.1 Wheels and Pinions
               3.2.2 Gearcases
               3.2.3 Bearings
               3.2.4 Lubrication Suction, Delivery and Drain
                      Pipework
               3.2.5 Electrical Equipment
               3.2.6 Rubber 'O' Rings
               3.2.7 Shafts and Couplings
          3.3 Gear Tooth Design
               3.3.1 Helix Angle
               3.3.2 Tooth Form
               3.3.3 Tooth Load Distribution
               3.3.4 Tooth Loading Analysis
               3.3.5 Gear Element Safety Factors
               3.3.6 Scuffing
          3.4 Gear Construction
               3.4.1 General
               3.4.2 Gear Element Construction
               3.4.3 Accuracy
               3.4.4 Identification
          3.5 Gear Case Design
               3.5.1 General
          3.6 Lubrication and Venting
               3.6.1 General
               3.6.2 Lubrication
          3.7 Bearings
               3.7.1 General
               3.7.2 Steel Backings
               3.7.3 White Metal Lining
               3.7.4 Bearing Design and Analysis
               3.7.5 Oil Inlets
               3.7.6 Housing
               3.7.7 Fitting
               3.7.8 Caps
               3.7.9 Vibration Measurement
               3.7.10 Temperature Measurement
          3.8 Turning Gear
               3.8.1 General
          3.9 Shafts and Couplings
               3.9.1 General
               3.9.2 Loose Couplings
               3.9.3 Oil Injections Loose Couplings
               3.9.4 Keyed Loose Couplings
               3.9.5 Involute Splined Couplings
               3.9.6 Justification of Alternative Designs
               3.9.7 Power Transmission
               3.9.8 Information to be Provided
          3.10 Clutches
          3.11 Fasteners
               3.11.1 Threaded Fasteners
               3.11.2 Non-Threaded Fasteners
          3.12 Instrumentation
               3.12.1 General
               3.12.2 Local Control and Surveillance
               3.12.3 Remote Control and Surveillance
               3.12.4 Design Constraints
          3.13 Gearcase Manufacture
               3.13.1 General
          3.14 Balancing and Vibration
               3.14.1 Balancing
               3.14.2 Vibrations
          3.15 Inspection
               3.15.1 General
               3.15.2 Acceptance Standards
          3.16 Shop Flushing
               3.16.1 General
          3.17 Cleanliness and Preservation
               3.17.1 During Manufacture
               3.17.2 After Shop Trials
               3.17.3 Cleanliness and Preservation After
                      Delivery
               3.17.4 Cleanliness During Installation
               3.17.5 Preservation and Cleanliness up to
                      Acceptance
               3.17.6 Preservation During 'Setting to Work'
          3.18 Testing
               3.18.1 Shop Testing
               3.18.2 Performance Testing of a New Gearbox
                      Design
               3.18.3 Production Test
               3.18.4 Post Test Inspections
               3.18.5 Records Required During Tests
          3.19 Contractor Sea Trials
               3.19.1 General
               3.19.2 Alignment
               3.19.3 Records Required During Contractor Sea
                      Trials
          3.20 Records
               3.20.1 General
               3.20.2 Distribution
SECTION 4 DESIGN REQUIREMENTS/GUIDANCE
SECTION 5 CORPORATE EXPERIENCE & KNOWLEDGE
ANNEX A RELATED DOCUMENTS
ANNEX B ABBREVIATIONS AND DEFINITIONS
ANNEX C PROCUREMENT CHECK LIST
ALPHABETICAL INDEX

Gives the minimum requirements which must be met by the Main Gearing Contractor and other authorities, during the design, manufacture, installation and commissioning of a Main Propulsion Gearbox intended for use in Vessels for the Royal Navy.