B20-CRT_US-EN

BORING | Criterion® Modular Boring Systems

Guidelines for Not Exceeding Recommended Length-to-Diameter Ratio

A

To calculate, see graphics below:

DRILLING

1.8"

6.00"

6.00"

6.00"

4.10"

6.00"

5

6

1

2

3

4

B

8

1100

1212

1414 18

6

16

4

2

0

BORING

3.00"

3.00"

3.00"

3.00"

3.00"

3.00"

Too many components!

*Length to diameter ratio is calculated using body diameters, not cutting diameter.

Step 1: Find L : D by component 0.6 = 1.88/3.00 2.0 = 6.00/3.00 2.0 = 6.00/3.00 2.0 = 6.00/3.00 2.0 = 6.00/3.00 1.4 = 4.10/3.00 1 2 3 4 5 6

Step 2: Add each L : D Average 0.6 2.0 2.0 2.0 2.0 1.4 + 10.0 = L : D ratio Too Long!

C

REAMING

D

1.8"

BURNISHING

4.10"

6.00"

6.00"

1

2

3

4

8

1100

1212

1414 18

6

16

4

2

0

3.00"

3.00"

3.00"

3.00"

E

*Length-to-diameter ratio is calculated using body diameters, not cutting diameter.

THREADING

Step 1: Find L : D by component 0.6 = 1.88/3.00 2.0 = 6.00/3.00 2.0 = 6.00/3.00 1.4 = 4.10/3.00 1 2 3 4

Step 2: Add each L : D Average 0.6 2.0 2.0 1.4 + 6.0 = L : D ratio

X

SPECIALS

Tool failure can cause serious injury. To prevent: - Do not exceed recommended 9xD length-to-diameter ratio or exceed 4 total components (including shank) Factory technical assistance is available for your specific applications through our Application Engineering department. ext: 7611 | email: appeng@alliedmachine.com WARNING

B20: 56

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