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ASME B5.48 1977 R2013

ASME B5.48 1977 R2013

$98.04

ASME B5.48 Ball Screws – Reaffirmed 2013

Published By Publication Date Number of Pages
ASME 1977 31
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This standard covers definitions, classes of ball screws, recommended combinations of screw diameters and leads, recommended drawing format, and performance characteristics of ball screw and nut assemblies as applied to machine tools.

PDF Catalog

PDF Pages PDF Title
8 CONTENTS
10 1.0 Scope
2.0 Definitions
11 3.0 Classes of Ball Screws
3.1 Preferred Classes
12 TABLES
Table I Class and Deviation
Table I (a) Preferred Lead Error Measurement Interval-Inches
Table I (b) Preferred Lead Error Measurement Interval-SI (Metric)
13 3.2 Measured Lead
3.3 Templates
4.0 Combinations of Nominal Screw Diameter and Nominal lead-Inch Series
4.1 General Plan
Table II Thread Length vs . “T” Factor for Classes 1, 2, 4, and 5
14 FIGURES
1 Acceptance Template Construction
15 5.0 Combinations of Nominal Screw Diameter and Nominal Lead-Metric Series
5.1 General Plan
6.0 Specifications and Drawing Format
Table III Full Indicator Movement, Classes 1 through 7
16 Table IV Diameter and Lead Combinations – Dimensions in Inches
Table V Diameter and Lead Combinations – Dimensions in Millimeters
17 2 Ball Screw Specification Sheet
19 3 Drawing Format
20 3A Drawing Format
21 7.0 Performance Characteristics
7.1 General
7.2 Limiting Conditions on Equations 7.4, 7.5 and 7.6; 7.8, 7.9 and 7.10
7.3 Imperial (Inch) System Symbols
7.4 Basic Load Rating (1 000 000 Inches Rated Life)
7.5 Basic Static Thrust Capacity (Imperial)
7.6 Load Rating at Other Than One Million Inches of Travel
7.7 SI Symbols
7.8 Basic Load Rating (25 400 Meters Rated Life)
7.9 Basic Static Thrust Capacity (Metric)
7.10 Load Rating at Other Than 25 400 Meters of Travel
7.11 The Equivalent Load for Ball Bearing Screw Assemblies
22 APPENDICES
Appendix A1
A1.1 General
A1.2 Symbols
A1.3 Axial Deflection Equations
23 A1.4 Approximate Deflection
A1.5 Drag Torque (Maximum)
A1.6 Length vs . Pitch Diameter Relation
24 Chart AI
25 Appendix A2
Fig . A1 Maximum Rate Error and Acceptance Template Use-Classes 3, 6, 7 and 8
26 Fig . A2 Maximum Linear Deviation – Classes 2 and 5
Fig . A3 Maximum Permissible Lead Error – Classes 1 and 4

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ASME B5.48 1977 R2013
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