Re: Diameters for an involute spline


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Posted by Ron V on December 15, 2006 at 20:51:18:

In Reply to: Diameters for an involute spline posted by Dimebag on December 13, 2006 at 12:22:34:

Flat Root side Fit External Spline Internal Spline
20/40 Spline Pitch, 30, 32 teeth, Class: 5 ext., 5 int.
Flat Root side Fit SF

No. of Teeth N 32

Spline Pitch P/Ps 20 / 40
Standard Pressure Angle FD 30

Tolerance Class 5 5

Circular Pitch p Inch 0.050000 0.050000
mm 1.2700 1.2700
Major Diameter Do | Dri Inch 1.6500 - 0.0200 1.6675 +0.0040
mm 41.910 - 0.508 42.355 +0.102
Pitch Diameter D Inch 1.600000 1.600000
mm 40.640 40.640
Form Diameter DFe | DFi Inch 1.5460 1.6540
mm 39.268 42.012
Minor Diameter Dre | Di Inch 1.5181 - 0.0144 1.5500 +0.0050
mm 38.559 - 0.366 39.370 +0.127
Base Diameter Db Inch 1.385641 1.385641
mm 35.195 35.195
Form Clearance (radial) cF Inch 0.0020 0.0020
mm 0.051 0.051
Effect. Circ. Tooth Thickness | Space Width tv | sv Inch 0.07854 - 0.00132 0.07854 +0.00132
mm 1.995 - 0.034 1.995 +0.034
Variation Allowance l Inch 0.00168 0.00168
mm 0.043 0.043
Actual Circ. Tooth Thickness | Space Width t | s Inch 0.07854 - 0.00168 0.07854 +0.00301
- 0.00301 +0.00168
mm 1.995 - 0.043 1.995 +0.076
- 0.076 +0.043
Total Index Variation Inch 0.00180 0.00180
mm 0.046 0.046
Profile Variation Inch +0.00030 - 0.00050 +0.00030 - 0.00050
mm +0.008 - 0.013 +0.008 - 0.013
Base Tangential Length over / between 6 Teeth 6 Spaces
Finished Dimensions Inch 0.82267 - 0.00146 0.82267 +0.00261
- 0.00261 +0.00146
Finished Tolerance Inch = 0.82006 0.82121 = 0.82413 0.82528
Base Tangential Length over / between 6 Teeth 6 Spaces
Finished Dimensions mm 20.896 - 0.037 20.896 +0.066
- 0.066 +0.037
Finished Tolerance mm = 20.830 20.859 = 20.933 20.962
Dimension over / between Pins de | di Inch pins 0.096000 pins 0.086400
Finished Dimensions Inch 1.74945 - 0.00268 1.47540 +0.00561
- 0.00479 +0.00315
Finished Tolerance Inch = 1.74466 1.74677 = 1.47855 1.48101
Dimension over / between Pins de | di mm Rollen 2.4384 Rollen 2.1946
Finished Dimensions mm 44.436 - 0.068 37.475 +0.142
- 0.122 +0.080
Finished Tolerance mm = 44.314 44.368 = 37.555 37.617
Total Backlash Inch + 0.00076 + 0.00521 + 0.00076 + 0.00521
mm + 0.019 + 0.132 + 0.019 + 0.132



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