• TEMPLATE BUSHING, TYPE "TB" - TECHNICAL INFORMATION

NOTE: Retainer rings are included at no charge with template bushing orders.

TECHNICAL DATA

Template bushings are designed for economy and are primarily intended for thin template materials varying from 1/16 to 3/8 inch thick, which provides low cost drill tooling.

STANDARD SIZES:
Complete range of sizes for templates from 1/16 to 3/8 inchthick, drill sizes from #55 to 1/2 inch.

CONCENTRICITY:
I.D. to O.D. within .002 T.I.R.

RADIUS:
Our bushings feature a blended and polishedradius at drill entrance.

STEEL: C-1144

HARDNESS:
Case hardened RC 61-65

APPLICATION DATA:
Template bushings are designed for economy and are primarily intended for thin template materials varying from
1/1 6 to 3/8 inch thick, which provides low cost drill tooling. Template bushings are held in place by a retainer ring. The serration on the template bushing allows positive locking, which prevents bushing spin in the template.
A feature of the template bushing is that you can reuse it by simply breaking the aluminum retainer ring and removing it from the template.

"A" - LAYOUT: "EDGE DISTANCE" & "HOLE SPACING" LIMITATIONS
	MINIMUM HOLE SPACING MINIMUM EDGE DISTANCE "A" DIM. BUSHING O.D. "B" DIM. BUSHING O.D. .98 .749 .438 .749 .73 .499 .312 .499 .60 .374 .250 .374

"B" - COUNTERSINK AND POSITION
	The reamed hole must be countersunk to permit the bushing to seat flush to .015 inside the surface of the template bate.

"C" - INSTALLATION

The Template Bushing is ideally designed for installation by Arbor Press, Rivet Gun or other impact tools. The serrated body compensates for the varying impact pressures... while locking positively and preventing bushing spin in the template or plastic tooling lay-up.
Please check the relative height of the aluminum ring with the bushing groove before securing.