Eccentric bushes with centre bore

Eccentric bushes enable lateral spring plungers to be precisely positioned with regard to the workpiece.

The lateral spring plunger must be pressed into the hole to at least depth L3. These plungers are for positioning and holding small parts in fixtures. If mechanical machining of the workpiece is to be carried out, other clamps may be necessary. When the fixture is not in use it should be ensured that plastic springs are not under stress. Spring force refers to a mean value.

Reference surfaces precision machined Note: Ring bolts for lifting are supplied. A cover prevents the cavities filling with swarf. Drawing reference: machined faces: +0.2 mm/ +0.5 mm unmachined faces: ±2 mm

Grid spacing 50 ±0.02 mm. Tombstones with grid holes are used on horizontal machining centres. The alphanumerically labelled grid holes guarantee a defined assignment of clamping elements by repeat setups. The tombstones conform to machine tables for machine tools acc. to DIN 55201 and JIS 6337-1980. Please order locating pins for positioning subplates on machine tables acc. to DIN 55201 separately. Please order protection plugs to plug unused grid holes separately. Ring bolts for hoisting are supplied. Other dimensions available on request. Drawing reference: 1) grid hole 2) hole for DIN 912 cap screw (D3/D4)