AS 2089-2008

1 - AS 2089-2008 SHEAVE BLOCKS FOR LIFTING PURPOSES
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
7 - 3 DEFINITIONS
7 - 3.1 Competent person
7 - 3.2 Fall of rope
7 - 3.3 Part of rope (fall of rope)
7 - 3.4 Self-coloured
7 - 3.5 Shall
7 - 3.6 Should
7 - 3.7 Sheave block
8 - 3.8 Working load limit (WLL)
8 - 3.9 Nominal size of sheaves and sheave blocks
8 - 3.10 Operation of sheave blocks
8 - 3.10.1 Manual operation
8 - 3.10.2 Power operation
8 - 3.11 Types of sheave block (see Figure 4)
8 - 3.11.1 Lead block
8 - 3.11.2 Snatch block
8 - 3.12 Components of sheave blocks (see Figure 5)
8 - 3.12.1 Axle
8 - 3.12.2 Bearing
8 - 3.12.3 Becket
8 - 3.12.4 Block shell
8 - 3.12.5 Crosshead
8 - 3.12.6 Head fitting
9 - 3.12.7 Identification plate or marking
9 - 3.12.8 Partition plate
9 - 3.12.9 Side plate
9 - 3.12.10 Side strap
9 - 3.12.11 Sheave
12 - 4 MATERIALS
12 - 4.1 Steel sections, plates, forgings and cast steels
12 - 4.2 Castings
12 - 4.3 Other materials
14 - 4.4 Bearings
14 - 4.5 Bolts, nuts and accessories
16 - 5 DESIGN AND MANUFACTURE
16 - 5.1 Loadings
16 - 5.2 Permissible working stresses
16 - 5.2.1 Heat treatment
17 - 5.2.2 Bending stresses in axles
17 - 5.2.3 Shear stress in axles and through-bolts
17 - 5.2.4 Bearing pressure on axles
17 - 5.2.5 Static bearing pressure
17 - 5.2.6 Tensile stress in screwed shanks of head fittings
18 - 5.2.7 Stresses in straps
18 - 5.2.8 Shear stress in straps
18 - 5.3 Side and partition plates (rope retention)
19 - 5.4 Hinged side straps
19 - 5.5 Rotating side plates
19 - 5.6 Sheaves
19 - 5.6.1 Manufacture
19 - 5.6.2 Diameter
19 - 5.6.3 Rope groove
20 - 5.7 Head fittings
20 - 5.7.1 Forged head fittings
20 - 5.7.2 Crosshead, hanger straps, eyes, and similar head fittings
21 - 5.7.3 Swivel head fittings
21 - 5.8 Screw threads
21 - 5.9 Axle
21 - 5.10 Beckets
21 - 5.11 Nut locking
22 - 5.12 Finish
22 - 5.13 Surface finish
22 - 5.14 Lubrication
22 - 5.15 Other standards
22 - 6 MECHANICAL PROPERTIES
22 - 6.1 Strength
22 - 6.2 Rotation
22 - 7 MARKING
23 - 8 TESTING OF MECHANICAL PROPERTIES
24 - 9 PROOF TESTING
24 - 9.1 Proof loading
24 - 9.2 Requirements
24 - 9.3 Test certificate
25 - APPENDIX A - INFORMATION THAT SHOULD BE SUPPLIED WITH ENQUIRIES AND ORDERS
25 - A1 BASIC INFORMATION
25 - A2 ADDITIONAL INFORMATION
26 - APPENDIX B - STANDARDS FOR COMPONENTS USED IN LIFTING SYSTEMS
27 - APPENDIX C - CARE AND USE
27 - C1 STORAGE
27 - C2 USE
28 - APPENDIX D - NON-LIFTING APPLICATIONS USING STEEL WIRE ROPE
29 - APPENDIX E - DETERMINATION OF WORKING LOAD LIMIT
30 - APPENDIX F - DESIGN OF SHEAVES
33 - APPENDIX G - OTHER STANDARDS RELEVANT TO THE DESIGN AND MANUFACTURE OF SHEAVE BLOCKS
35 - APPENDIX H - CONDITIONS FOR APPLICATION OF TEST FORCES
36 - APPENDIX I - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
36 - I1 SCOPE
36 - I2 STATISTICAL SAMPLING
36 - I3 PRODUCT CERTIFICATION
37 - I4 SUPPLIER’S QUALITY MANAGEMENT SYSTEM
37 - I5 OTHER MEANS OF ASSESSMENT

Specifies requirements for general purpose sheave blocks for lifting purposes. Guidance on information that should be supplied with enquiries and orders, on care and use and on use for non-lifting applications, is given in appendices.

This Standard specifies requirements for general purposes sheave blocks or lifting mechanisms as specified in AS1418.1.Sheave blocks used for applications other than lifting may have sheaves that are smaller in diameter than those specified herein.This Standard covers sheave blocks with any type of bearing (i.e., frictionless or friction) and with any type of operating means (i.e., power driven or manual).This Standard does not cover sheave blocks for the conveyance of persons.Guidance on information that should be supplied with enquiries and orders is given in AppendixA.Standards for components that are used in lifting systems are listed in AppendixB.Guidance on care and use is given in AppendixC.Guidance on using sheave blocks for non-lifting applications is given in AppendixD.Requirements for the determination of the working load limit is given in AppendixE.

Originated as AS B247-1968.
Revised and redesignated AS 2089-1977.
Second edition 1993.
Third edition 2008.