BS 3550:1963

Part 1. Dimensions
Cooperating organizations
Foreword
Specification
1. Scope
2. Terms, definitions and symbols
3. Types of fit
4. Formulae for basic dimensions
5. Fillets and chamfers
6. Classes of fit
7. Spline errors
8. Effect of spline errors
9. Effective and actual dimensions
10. Use of effective and actual dimensions
11. Spline tables
12. Drawing data
13. Calculation of fillets
14. Modifications for low numbers of splines
Figures
1. Terms and symbols
2. Profile errors
3. Effect of splined hole errors
4. Effect of splined shaft errors
5. Spline fit control
6-12. Drawing data
13. Fillet for fillet root, internal
14. Fillet for fillet root, external
Tables
1. Formulae for basic dimensions
2. Basic dimensions
3. Internal (hole) and external (shaft) spline
     tolerances
4. Effective clearance
5. 2.5/5 pitch-flat root side fit
6. 3/6 pitch-flat root side fit
7. 4/8 pitch-flat root side fit
8. 5/10 pitch-flat root side fit
9. 6/12 pitch-flat root side fit
10. 8/16 pitch-flat root side fit
11. 10/20 pitch-flat root side fit
12. 12/24 pitch-flat root side fit
13. 16/32 pitch-flat root side fit
14. 20/40 pitch-flat root side fit
15. 24/48 pitch-flat root side fit
16. 32/64 pitch-flat root side fit
17. 3/6 pitch-flat root major diameter fit
18. 4/8 pitch-flat root major diameter fit
19. 5/10 pitch-flat root major diameter fit
20. 6/12 pitch-flat root major diameter fit
21. 8/16 pitch-flat root major diameter fit
22. 10/20 pitch-flat root major diameter fit
23. 12/24 pitch-flat root major diameter fit
24. 16/32 pitch-flat root major diameter fit
25. 2.5/5 pitch-fillet root side fit
26. 3/6 pitch-fillet root side fit
27. 4/8 pitch-fillet root side fit
28. 5/10 pitch-fillet root side fit
29. 6/12 pitch-fillet root side fit
30. 8/16 pitch-fillet root side fit
31. 10/20 pitch-fillet root side fit
32. 12/24 pitch-fillet root side fit
33. 16/32 pitch-fillet root side fit
34. 20/40 pitch-fillet root side fit
35. 24/48 pitch-fillet root side fit
36. 32/64 pitch-fillet root side fit
37. 40/80 pitch-fillet root side fit
38. 48/96 pitch-fillet root side fit
39. Machining tolerances
40. Formulae for dimensions and tolerances in tables
     5 to 38 inclusive
41. One/Two pitch basic dimensions
42. Basic spline data
Part 2. Gauging and Inspection
Foreword
Specification
15. Scope
16. Inspection methods
17. Inspection with gauges
18. Gauges for splined holes
19. Gauges for splined shafts
20. Gauge tolerances
21. Relationship between gauge and work
22. Measurement with pins
23. Analytical inspection
24. Change factor
Figures
15. Space width and spline thickness inspection
16. GO full form plug gauge for side fit and NOT GO
     composite plug gauge for side fit and major
     diameter fit
17. GO full form major diameter fit plug gauge
18. NOT GO sector plug gauge
19. NOT GO major diameter fit sector plug gauge
20. Ring gauge: GO full form side fit, NOT GO composite
     side fit and major diameter fit
21. GO full form major diameter fit ring gauge
22. NOT GO sector ring gauge
23. Relationship between full form and composite ring
     gauges and splined shafts
24. Relationship between full form and composite ring
     gauges and splined holes
25. Measurement between pins
26. Measurement over pins
27. Six spline, internal
28. Measurement with three pins
29. Cumulative pitch error chart
30. Pitch readings due to eccentricity
31. Typical chart record
32. Measurement change factor Ki
33. Measurement change factor Ke
Tables
43. Relationship between work and gauge tolerances
44. Allowable errors for gauges
45. Tolerances for actual space width and spline
     thickness of gauges
46. Tolerances over measuring pins: plug gauges
47. Tolerances between measuring pins: ring gauges
48. Tolerances for major and minor diameters of gauges
49. Measurements between pins for maximum actual space
     width, splined hole
50. Measurements over pins for minimum actual spline
     thickness, splined shaft, Class 1 fit
51. Measurements over pins for minimum actual spline
     thickness, splined shaft, Class 2 fit
52. Measurements between pins for basic space width,
     splined hole
53. Measurements over pins, for basic spline thickness,
     splined shaft
Appendix
54. Sevolutes of angles
Index

Dimensions of involute splined shafts and holes with 30° pressure angle in the range: major diameter fit, flat root 3/6 to 16/32 pitch 6 to 60 teeth); wide fit, flat root (2.5/5 to 32/64 pitch 6 to 60 teeth); wide fit, fillet root (2.5/5 to 48/96 pitch 6 to 60 teeth). Basic formulae for calculating dimensions and tolerances, with guidance on obtaining the fit desired. Gauging and inspecting splines, methods of obtaining dimensions and tolerances for gauges. Inspection of splines using pins, tables of measurements over and between pins.