Washers medium din en iso 7089 a

R-clips are used for securing bolts and axles. They are easy to install and can be reused. The ends have no sharp edges. Double coil R-clips have a flatter spring characteristics and are easier to install. The double coil allows a tether cable to be attached to prevent loss. Drawing reference: Form E: with single coil. Form D: with double coil (coil direction can differ from the drawing).

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)

On request: Other slot widths. Drawing reference: machined faces: +0.2 mm/ +0.5 mm unmachined faces: ±2 mm