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Standard and Accessory Supporting Rings

Rebound Impact tester, or Leeb hardness tester, only works properly, if the impact body has a certain position in the guiding tube at the moment of impacting the test surface.

In the normal position when testing flat samples, the spherical test tip is located exactly at the end of the guiding tube. When testing spherical samples with standard support rings, it is to be observed that the radii R of curvature do not drop below the values indicated.

Standard Support Rings:

The standard support rings are supplied with the impact device. (D in the table means Diameter)

Impact Devices	Model	Shape	Dimension (mm)	Min radius of curvature (mm)
D, DC, C, E	D6		D20 X 5.5	60
	D6a		D13.5 X 5.5	30
D+15	D6b/D+15		D13.5X11X5.5	30
G	G6		D30 X 7	100
	G6a		D20 X 7	50

Accessory Support Rings:

The accessory support rings are available for impact devices D, DC, D+15, C and E, in the format of a set of 12.

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