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Reference / Tooling Balls

Type 1

 

(A) Ball Diameter (B) Length (C) Stem Diameter
6mm 12mm 3mm
0.2500" 0.500" 0.1250"
8mm 6mm 4mm
0.3750" 0.750" 0.1875"
10mm 20mm 5mm
12mm 24mm 6mm
0.5000" 1.000" 0.2500"
15mm 30mm 7.5mm
0.6250" 1.250" 0.3125"
0.7500" 1.500" 0.3750"
20mm 40mm 10mm
0.8750" 1.750" 0.4375"
25mm 50mm 12.5mm
1.0000" 2.000" 0.5000"
30mm 50mm 15mm

Concentricity Ball to Stem within 5µm/0.0002 TIR

 

Type 2

(A) Ball Diameter (B) Length +/-5um (C) Length (D) Diameter +0.00-5.0um
6mm 6mm 6mm 3mm
0.2500" 0.2500" 0.2500" 0.1250"
8mm 8mm 8mm 4mm
0.3750" 0.3750" 0.3750" 0.1875"
10mm 10mm 10mm 5mm
12mm 12mm 12mm 6mm
0.5000" 0.5000" 0.5000" 0.2500"
15mm 15mm 15mm 7.5mm
0.6250" 0.6250" 0.6250" 0.3125"
0.7500" 0.7500" 0.7500" 9.525mm
20mm 20mm 20mm 10mm
0.8750" 0.8750" 0.8750" 0.4375"
25mm 25mm 25mm 12mm
1.0000" 1.0000" 1.0000" 0.5000"
30mm 30mm 30mm 15mm

Concentricity Ball to Stem within 5µm/0.0002 TIR

 

Type 3

(A) Ball Diameter (B) Length +/-5um (C) Length (D) Thread
6mm 6mm 6mm M3
0.2500" 0.2500" 0.2500" 6-32
8mm 8mm 8mm M4
0.3750" 0.3750" 0.3750" 10-24
10mm 10mm 10mm M5
12mm 12mm 12mm M6
0.5000" 0.5000" 0.5000" 1/4UNF
15mm 15mm 15mm M8
0.6250" 0.6250" 0.6250" 5/16UNF
0.7500" 0.7500" 0.7500" 3/8UNF
20mm 20mm 20mm M10
0.8750" 0.8750" 0.8750" 7/16UNF
25mm 25mm 25mm M12
1.0000" 1.0000" 1.0000" 1/2UNF
30mm 30mm 30mm M12

 

Type 4

(A) Ball Diameter (B) Length +/-5um (C) Length (D) Diameter +0.00-5.0um (E) Thread
6mm 6mm 6mm 3mm M2
0.2500" 0.2500" 0.2500" 0.1250" 2-56
8mm 8mm 8mm 4mm M2
0.3750" 0.3750" 0.3750" 0.1875" 4-40
10mm 10mm 10mm 5mm M2
12mm 12mm 12mm 6mm M3
0.5000" 0.5000" 0.5000" 0.2500" 6-32
15mm 15mm 15mm 7.5mm M3
0.6250" 0.6250" 0.6250" 0.3125" 10-24
0.7500" 0.7500" 0.7500" 9.525mm 10-24
20mm 20mm 20mm 10mm M6
0.8750" 0.8750" 0.8750" 0.4375" 10-24
25mm 25mm 25mm 12mm M6
1.0000" 1.0000" 1.0000" 0.5000" 10-24
30mm 30mm 30mm 15mm M6

Concentricity Ball to Stem within 5µm/0.0002 TIR

 

Type 5

(A) Ball Diameter (B) Length (C) Thread
6mm 8mm M2.5
0.2500" 0.312" 4-40
8mm 8mm M2.5
0.3750" 0.312" 4-40
10mm 8mm M2.5
12mm 8mm M2.5
0.5000"

0.312"

4-40
15mm 10mm M4
0.6250" 0.375" 6-32
0.7500" 0.375" 6-32
20mm 10mm M4
0.8750" 0.375" 10-32
25mm 10mm M6
1.0000" 0.375" 10-32
30mm 10mm M6