JB/T 12641-2016Straight cylindrical involute splines - Measuring instruments (English PDF)

National Standard of the People's Republic of China

ICS

17.040.30

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 Type
• 4.1 Between-pin distance gauge for internal splines
• 4.2 Over-pin distance gauge for external splines
• 4.3 Actual space width gauge for internal splines
• 4.4 Actual tooth thickness gauge for external splines
• 4.5 Effective space width gauge for internal splines
• 4.6 Effective tooth thickness gauge for external splines
• 4.7 Choice of the number of teeth of the body of a partial tooth gauge
• 5 Requirements
• 5.1 Appearance
• 5.2 Interaction
• 5.3 Hardness and surface roughness
• 5.4 Detecting force
• 5.5 Setting gauge
• 5.6 Variation of the indication
• 5.7 Indication error
• 6 Inspection methods
• 6.1 Variation of the indication
• 6.2 Indication error
• 7 Marking and packaging
• 7.1 Marking
• 7.2 Packaging
• Figure 1 Between-pin distance or over-pin distance of the spline of the workpiece
• Figure 2 The four limit dimensions of the space width or of the tooth thickness of the workpiece
• Figure 3 Diagram of the between-pin distance gauge for internal splines
• Figure 4 Diagram of the over-pin distance gauge for external splines
• Figure 5 Diagram of the actual space width gauge for internal splines
• Figure 6 Diagram of the actual tooth thickness gauge for external splines
• Figure 7 Diagram of the effective space width gauge for internal splines
• Figure 8 Diagram of the effective tooth thickness gauge for external splines
• Table 1 Variation of the indication and indication error of the gauge