- CIRCUIT
BOARD, TYPE "CB" - TECHNICAL INFORMATION
When
Ordering Specify:
EXAMPLE: |
Quantity |
Bushing
Type |
I.D.
"A" |
6 |
CB-2 |
#55 |
*When
ordering carbide bushings, add the letter "C"
after bushing type.
EXAMPLE: |
Quantity |
Bushing
Type |
I.D.
"A" |
6 |
CB-2C |
#55 |
TECHNICAL
DATA
| Our
circuit board bushings are designed
to fit a variety of circuit board drilling
machines
|
I.D.
TOLERANCES - ANSI Standard:
| Standard
Drill Sizes |
I.D. |
Tolerance |
| #55
- 1/4 |
Nom |
+.0001/+.0004 |
| Over
1/4 - 3/4 |
Nom |
+.0001/+.0005 |
| Over
3/4 - 49/64 |
Nom |
+.0002/+.0006 |
STANDARD
SIZES:
Standard sizes in a given I.D. range are sizes
listed in the decimal equivalent chart either
as a fraction, number or letter size. Any other
decimal or millimeter size within a given range
is considered special and will be priced accordingly.
DRILL BEARING LENGTH:
1-1/2
times I.D. (A) diameter.
STEEL:
Our bushings are manufactured from selected
steels known for their long wear and stability.
Bushings are also available from other materials
at extra cost (bronze, M-2, D-2, stainless steel,
etc.)
HARDNESS:
Rockwell C 62 - 64 in the hole.
NOTE:
All headed carbide bushings are furnished
with steel heads. |
