Knurl Wheels
Knurl Holders
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Tech InfoKnurling Information
Diametral Pitch Knurling & Conversions
Determining Centerline with Straddle Holders
Approx. Increase in Knurled Diameter
Surface Speed to RPM Conversions
Numbers of Teeth on Stock Knurls
The Problem of Straight Form Knurling in a 2 Die Straddle Holder
Articles:
Convex Knurls Speed Rotor-Shaft Production for Power-System Manufacturer
When to Roll Form, When to Cut
Tips to Upgrade Knurling Practices
Approx. Increase in Knurled Diameter
Table 1
|
APPROXIMATE INCREASE IN KNURLED DIAMETERS
Using ACCU TRAK Circular or Diametral Pitch Knurls |
||||||
|
TPI
|
Pitch
mm |
Tooth
Angle |
Straight
In. / mm |
Diagonal
In. / mm |
Diamond (ON PART)
|
|
|
Male
|
Female
|
|||||
|
12
|
2.12
|
90°
|
.034" / .86mm
|
.034" / .86mm
|
.038" / .97mm
|
.023" / .58mm
|
|
16
|
1.59
|
90°
|
.025" / .64mm
|
.025" / .64mm
|
.029" / .74mm
|
.017" /.43mm
|
|
20
|
1.22
|
90°
|
.020" / .51mm
|
.020" / .51mm
|
.023" / .58mm
|
.014" / .36mm
|
|
25
|
1.02
|
90°
|
.016" / .41mm
|
.016" / .41mm
|
.018" / .46mm
|
.011" / .28mm
|
|
30
|
0.85
|
90°
|
.013" / .33mm
|
.013" / .33mm
|
.015" / .38mm
|
.009" / .23mm
|
|
35
|
0.73
|
90°
|
.011" / .28mm
|
.011" / .28mm
|
.013" / .33mm
|
.007" / .18mm
|
|
40
|
0.64
|
90°
|
.009" / .23mm
|
.009" / .23mm
|
.010" / .25mm
|
.006" / .15mm
|
|
-
|
||||||
|
35
|
0.73
|
70°
|
.014" / .36mm
|
.014" / .36mm
|
.016" / .36mm
|
.009" / .23mm
|
|
40
|
0.64
|
70°
|
.012" / .34mm
|
.012" / .34mm
|
.013" / .33mm
|
.008" / .20mm
|
|
50
|
0.51
|
70°
|
.009" / .23mm
|
.009" / .23mm
|
.010" / .25mm
|
.006" / .15mm
|
|
60
|
0.42
|
70°
|
.007" / .18mm
|
.007" / .18mm
|
.008" / .20mm
|
.005" / .11mm
|
|
70
|
0.36
|
70°
|
.006" / .15mm
|
.006" / .15mm
|
.007" / .17mm
|
.004" / .10mm
|
|
80
|
0.32
|
70°
|
.005" / .13mm
|
.005" / .13mm
|
.006" / .15mm
|
.004" / .10mm
|
|
-
|
||||||
|
DP
|
Pitch
mm |
Tooth
Angle |
Straight
In. / mm |
Diagonal
In. / mm |
Diamond (ON PART)
|
|
|
Male
|
Female
|
|||||
|
64
|
1.25
|
80°
|
.024" / .61mm
|
.021" / .53mm
|
.024" / .61mm
|
.015" / .38mm
|
|
96
|
0.83
|
80°
|
.016" / .41mm
|
.014" / .36mm
|
.016" / .41mm
|
.010" / .25mm
|
|
128
|
0.62
|
80°
|
.012" / .30mm
|
.010" / .25mm
|
.012" / .30mm
|
.007" / .18mm
|
|
160
|
0.50
|
80°
|
.009" / .23mm
|
.008" / .20mm
|
.009" / .23mm
|
.005" / .13mm
|
