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Jarno Taper Standard

Jarno Tapers were introduced by the Brown & Sharpe Manufacturing Company. All Jarno Tapers have a taper-per-foot of .60000 exactly. Stark Industrial standard centers are made of bearing quality 52100 steel, heat treated to 60 - 64 Rc, and guaranteed to have .0002 or less total-indicator-runout. Also available are standard carbide tipped centers with 52100 steel shanks hardened to 45 - 50 Rc.

Taper Size OAL Taper Length Diameter Carbide Tip Dia Height Above Center Length of Cut Out  
6 4-1/2 3 .750 3/8 7/32 1-1/8 More Info
 

Jarno Taper Standard - Size 6

Type Part Number Weight
52100 Steel Full 44119 2.48
52100 Steel Half 45119 2.46
Carbide Tipped Full 46119 2.66
Carbide Tipped Half 47119 2.63
6 5-1/2 3 .750 3/8 7/32 2-3/16 More Info
 

Jarno Taper Standard - Size 6

Type Part Number Weight
52100 Steel Full 44120 2.84
52100 Steel Half 45120 2.80
Carbide Tipped Full 46120 2.86
Carbide Tipped Half 47120 2.82
6 6 3 .750 3/8 7/32 2-1/2 More Info
 

Jarno Taper Standard - Size 6

Type Part Number Weight
52100 Steel Full 44121 2.66
52100 Steel Half 45121 2.63
Carbide Tipped Full 46121 3.06
Carbide Tipped Half 47121 3.01
7 5-1/4 3-1/2 .875 3/8 7/32 1-3/16 More Info
 

Jarno Taper Standard - Size 7

Type Part Number Weight
52100 Steel Full 44122 3.04
52100 Steel Half 45122 2.99
Carbide Tipped Full 46122 3.08
Carbide Tipped Half 47122 3.03
8 6 4 1.000 1/2 9/32 1-5/8 More Info
 

Jarno Taper Standard - Size 8

Type Part Number Weight
52100 Steel Full 44123 3.54
52100 Steel Half 45123 3.47
Carbide Tipped Full 46123 3.42
Carbide Tipped Half 47123 3.35
9 6-3/4 4-1/2 1.125 1/2 9/32 1-7/8 More Info
 

Jarno Taper Standard - Size 9

Type Part Number Weight
52100 Steel Full 44124 3.84
52100 Steel Half 45124 3.75
Carbide Tipped Full 46124 3.80
Carbide Tipped Half 47124 3.71
10 7-1/2 5 1.250 1/2 9/32 2 More Info
 

Jarno Taper Standard - Size 10

Type Part Number Weight
52100 Steel Full 44125 4.40
52100 Steel Half 45125 4.28
Carbide Tipped Full 46125 4.46
Carbide Tipped Half 47125 4.34
11 8-1/4 5-1/2 1.375 1/2 9/32 2 More Info
 

Jarno Taper Standard - Size 11

Type Part Number Weight
52100 Steel Full 44126 5.58
52100 Steel Half 45126 5.41
Carbide Tipped Full 46126 5.05
Carbide Tipped Half 47126 4.90
12 9 6 1.500 5/8 11/32 2-1/4 More Info
 

Jarno Taper Standard - Size 12

Type Part Number Weight
52100 Steel Full 44127 5.92
52100 Steel Half 45127 5.73
Carbide Tipped Full 46127 5.94
Carbide Tipped Half 47127 5.75
13 9-3/4 6-1/2 1.625 5/8 11/32 2-1/2 More Info
 

Jarno Taper Standard - Size 13

Type Part Number Weight
52100 Steel Full 44128 6.98
52100 Steel Half 45128 6.74
Carbide Tipped Full 46128 6.98
Carbide Tipped Half 47128 6.74
14 10-1/2 7 1.750 5/8 11/32 3 More Info
 

Jarno Taper Standard - Size 14

Type Part Number Weight
52100 Steel Full 44129 8.08
52100 Steel Half 45129 7.78
Carbide Tipped Full 46129 8.16
Carbide Tipped Half 47129 7.86
15 11-1/4 7-1/2 1.875 5/8 11/32 3 More Info
 

Jarno Taper Standard - Size 15

Type Part Number Weight
52100 Steel Full 44130 9.96
52100 Steel Half 45130 9.57
Carbide Tipped Full 46130 9.64
Carbide Tipped Half 47130 9.26
16 12 8 2.000 3/4 13/32 3 More Info
 

Jarno Taper Standard - Size 16

Type Part Number Weight
52100 Steel Full 44131 11.02
52100 Steel Half 45131 10.60
Carbide Tipped Full 46131 11.12
Carbide Tipped Half 47131 10.67
18 13-1/2 9 2.250 7/8 15/32 3-1/2 More Info
 

Jarno Taper Standard - Size 18

Type Part Number Weight
52100 Steel Full 44132 14.40
52100 Steel Half 45132 13.78
Carbide Tipped Full Part Number 0.00
Carbide Tipped Half Part Number 0.00
20 15 10 2.500 7/8 15/32 4 More Info
 

Jarno Taper Standard - Size 20

Type Part Number Weight
52100 Steel Full 44133 18.94
52100 Steel Half 45133 18.10
Carbide Tipped Full Part Number 0.00
Carbide Tipped Half Part Number 0.00