Knurling Information

General Knurling Information

Speeds & Feeds for Knurling

Knurling Tips

Diamond Knurling

Metric / Inch Conversions

Blank Diameter Selection

Diametral Pitch Knurling & Conversions

Determining Centerline with Straddle Holders

Special Knurling Dies

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


Numbers of Teeth on Stock Knurls

NUMBERS OF TEETH ON ACCU TRAK KNURLS

INCH METRIC
STRAIGHT STRAIGHT
DIAGONAL DIAGONAL 15° - 30° - 45°

 

 

 

 

 

 

Number of Teeth on Accu Trak Inch Series Straight Knurls

INCH TPI
Inch Diam. Series 08 10 12 14 15 16 18 19 20 21 22 24 25 28 29 30 32 33 34 35 38 40 41 47 35 50 53 60 70 80 90 100
5/16" BP - - - - - 15 - - 19 - - - 25 - -  29 - - - 35 - 39 -  - - 49 52 59 69 79  89 99
1/2" EP
EQ		 - - - - - 25 - 30 31 32 34 37 38 43 44 47 49  52  - 55 59 63 65 73 - 79 84 94 109 125 - 155
5/8" GK
GR		 - - 23 27 29 31 34 37 39 41 43 47 49 55 56 59 63 65 - 68 71 78 81 92 - 98  103 116 135 155 - -
3/4" KN
KP
KR		 19 23 28 34 35 38 42 45 47 50 51 57 59 65 68 71 75 77 80 82 89 94 97 - 82 117 125 140 - 189 - 235
7/8" MT - - 33 38 - 44 - 51 55 - - 66 69  - 79 82 88 - - 95 - 110 113 - - 136 164 -  - - - -
1" OU - 31 37 44 - 50 - 60 61 67 69 75 78 87 -  95 101 103 - 110 - 124 - 142 - 158 - 187 - 249 284 -
1-1/4" PH - - 47 55 - 63 - - 78 - - - 98  - - 117 125 - - 136 - 156 - - - 195 - - - - - -
 

METRIC PITCH
Diam. Series 0.3 0.4 0.5 .06 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0
19.05mm(3/4") MK - 150 119 99 - 75 - 59 50 - 40 37 - 30

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Number of Teeth on Accu Trak Metric Series Straight Knurls

Metric Pitch
Diameter Series 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0
8.9 mm CG 92 69 54 46 39 34 - 27 - - - - - -
10 mm MB
MM		 105 78 63 52 - 39 - 31 26 - 21 - - -
14.5 mm CB - 113 91 75 - 56 - 45 38 - 30 - - -
15 mm CP
MN
MQ		 158 117 94 78 - 58 - 47 39 - 31 29 - -
19.05 mm MK - 150 119 99 - 75 - 59 50 - 40 37 - 30
20 mm ML
MR
MS MU		 - - 125 103 - 77 - 63 51 - 40 39 35 31
21.5 mm CC 225 168 134 112 - 87 - 67 56 - 45 42 - 33
25 mm CV
MW 		- 196 156 130 112 97 - 78 65 - 52 49 - 39

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Number of Teeth on Accu Trak Inch Series 30° Diagonal Knurls

INCH T P I
Diam. Series 8 10 12 14 15 16 18 19 20 21 22 24 25 28 29 30 32 33 34 35 38 40 41 47 35 50 53 60 70 80 90 100
5/16" BP - - - - - - - - 17 - - - 21 - - 26 - - - 29 - 34 - - - 43 45 - 59 68 - -
1/2" EP
EQ		 - - 16 - - 22 25 - 27 32 - - 34 - - 40 43 - - 47 - 55 - - - 68 - - - 107 - -
5/8" GK
GR		 - 17 19 23 - 27 - - 34 41 - - 42 - 49 52 - - - 58 - 68 - - - 86 - 101 117 135 - -
3/4" KN
KP
KR		 16 20 25 34 - 33 - - 41 50 - 49 51 - 59 61 65 77 80 71 - 81 - - - 102 109 122 143 163 - 203
7/8" MT - - - 33 - 38 - - 47 67 - - 59 - - 71 - - - - - 95 - - - - - - 165 - - -
1" OU - 26 32 46 - 45 - - 53 - - - 68 - - 81 87 103 - - - 108 - - - - - - - - - -
1-1/4" PH 27 33 41 55 - 54 - - 68 82 - - 85 - - 103 - - - - - 135 - - - 169 - - - - - -
 

METRIC PITCH
Diam. Series 0.3 0.4 0.5 .06 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0
19.05mm(3/4") MK - 130 104 86 - 65 - 52 43 - 34 32 - 26

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Number of Teeth on Accu Trak Metric Series 15° Diagonal Knurls

Metric Pitch
Diameter Series 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0 2.5 3.0
8.9 mm CG
90
67
54
45
38
33
30
27
22
-
-
-
-
-
-
-
14.5 mm CB
-
109
87
72
-
54
-
43
36
-
-
-
-
-
-
-
15 mm CP
-
-
91
-
64
-
51
45
38
-
30
-
27
-
-
-
21.5 mm CC
218
162
130
108
-
81
73
64
53
-
43
-
-
32
-
-
25 mm CV
253
189
151
126
108
95
85
75
63
53
50
47
-
38
-
-
 
   

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Number of Teeth on Accu Trak Metric Series 30° Diagonal Knurls

Metric Pitch
Diameter Series 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0 2.5 3.0
8.9 mm CG 80 60 48 40 34 29 27 23 20 - - - - - - -
10 mm MB
MM		 90 68 54 45 38 34 30 27 22 - - - - - - -
14.5 mm CB - 98 78 65 56 49 - 39 32 - 26 - - - - -
15 mm CP
MN
MQ		 137 102 81 68 58 51 45 41 33 - 27 - - 21 - -
19.05 mm MK - 130 104 86 - 65 - 52 43 - 34 32 - 26 - -
20 mm ML
MR
MS MU		 - 137 109 90 78 68 61 54 45 - 36 34 30 27 22 18
21.5 mm CC - 146 116 97 - 73 - 58 48 - 39 36 - 29 - -
25 mm CV
MW 		- 169 136 113 97 85 - 68 56 48 45 42 - 34 - -

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 Number of Teeth on Accu-Trak Inch Series 45° Diagonal Knurls

DIAMETER KNURL
SERIES		 TPI  (TEETH PER INCH)
8 10 12 14 16 18 19 20 22 24 25 28 29 30 31 32 33 34 35 37 38 39 40 41 42 43 44 47 50 53 60 65 70 80 90 100
5/16" BP                                                                
1/2' EP               22     27     33                                    
EQ                                                        
5/8" GK         22 25    27 30   34 38 40 41 43 44 45 46 49 51 53 54 55 56 58 59 61 65 69   83   97 111    
GR                    
3/4" KN                                                                
KP         26     33     41     50                                    
KR                                                                
7/8" MT               39                                                
1" OU                                                                
1-1/4" PH                                                                

 

 

Number of Teeth on Accu Trak Metric Series 45° Diagonal Knurls

DIAMETER
Series Metric Pitch
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.5 1.6 1.8 2.0 2.5 3.0
10 mm MB
MM		 73 55 44 36 31 27 24 22 18 15 14 13 - 10 - -
15 mm MN
MQ		 111 83 66 55 47 41 36 33 27 - 22 20 - 17 - -
20 mm ML
MR
MS MU		 148 111 89 74 63 55 49 44 37 - 29 - - 22 17 15
25 mm MW 187 139 111 93 78 70 61 55 47 - 37 - - 28 - -

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