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Circuit-Board-Drill Bushings – Palomar (CB-7)

Drill Bushings

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Circuit-Board-Drill Bushings – Palomar (CB-7) Part # CB-7 Carr Lane Mfg.®

These bushings are designed to accommodate the larger shank diameter of a circuit-board drill. Standard drill bearing length is 1-1/2 times drill diameter on all sizes. CB-7 type bushings are specially designed for Palomar circuit-board drilling machines.

All Circuit-Board-Drill Bushings are manufactured to order. To order a specific bushing, select the basic part number below and add the desired ID drill size (as a 4-place decimal inch). See Technical Information tab for Standard Drill Sizes.

Example:

CB-7-.1250 Bushing for 1/8" drill

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Technical Information

Click here for Standard Drill Sizes

Application Information

These bushings are designed to accommodate the larger shank diameter of a circuit-board drill. Standard drill bearing length is 1-1/2 times drill diameter on all sizes.

ID Tolerance

Standard ID Tolerance:

From #80 to 1/4" +.0001/+.0004

(ID concentric with OD to within .0005" TIR)

Material

MATERIAL	HEAT TREAT	FINISH	DFARS	RoHS
1144 Stressproof Steel	heat treated to achieve Rc 62-64 ID hardness	-	✔	✔

Click here for detailed material and finish specifications.

California residents click here for Prop 65 information.

Circuit-Board-Drill Bushings – Palomar (CB-7)

CB bushings are manufactured to order. To request a quotation, use the basic part number below and add the desired ID drill size (as a 4-place decimal inch). Example: CB-7-.0135 (CB-7 with .0135" ID)

QUANTITY	BASIC PART NO.	AVAILABLE ID SIZES	STANDARD DRILL SIZES
	CB-7	.0135-.1406	1/64-9/64, #80-#28, .35-3.50mm

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CARR LANE MANUFACTURING
4200 CARR LANE CT.
P.O. BOX 191970
ST. LOUIS, MO 63119
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