Effective: 1/1/07

 

  

Stock Gear Hobs

Single Thread
Right Hand 		20 Degree Pressure AngleClass AA
DP Bore O.D. Width
Carbide
Topping Non
Topping
Medium Pitch
10 1-1/4" 2-3/4" 2-3/4"    
12 1-1/4" 2-3/4" 2-3/4"    
  1-1/4" 2-1/2" 2-1/2"  
14 1-1/4" 2-1/2" 2-1/2"  
16 3/4" 1-7/8" 1-7/8"  

Fine Pitch

20 3/4" 1-7/8" 1-7/8"
24 3/4" 1-7/8" 1-7/8"
  1/2" 1-1/8" 1-1/8"    
28 3/4" 1-7/8" 1-7/8"
  1/2" 1-1/8" 1-1/8"    
32 3/4" 1-7/8" 1-7/8"
  1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"
36 3/4" 1-7/8" 1-7/8"
  1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"
40 1/2" 1-1/8" 1-1/8"
42 1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"
48 3/4" 1-7/8" 1-7/8"    
  1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"
64 1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"

 

Stock Spline Hobs

Single Thread
Right Hand 		30 Degree Pressure Angle Involute Spline
(Tooth forms per ANSI B92.1-1970) 		Class A
DP Bore O.D. Width
Carbide
Flat
Root 		Fillet
Root
8/16 3/4" 1-7/8" 1-7/8"
10/20 3/4" 1-7/8" 1-7/8"
12/24 3/4" 1-7/8" 1-7/8"
16/32 3/4" 1-7/8" 1-7/8"
20/40 1/2" 1-1/4" 1-1/4"
24/48 3/4" 1-7/8" 1-7/8"    
  1/2" 1-1/4" 1-1/4"
32/64 3/4" 1-7/8" 1-7/8"    
  1/2" 1-1/8" 1-1/8"
40/80 1/2" 1-1/8" 1-1/8"    
48/96 1/2" 1-1/8" 1-1/8"
  8mm 3/4" 3/4"    

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