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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.

 

Impact DevicesModelShapeDimension (mm)Min radius of curvature (mm)
D, DC, C, ED6๘20 X 5.560
D6a๘13.5 X 5.530
D+15D6b/D+15๘13.5X11X5.530
GG6๘30 X 7100
G6a๘20 X 750

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.

ModelShapeDimension (mm)External radii (mm)Applications
Z10-15 20 X 20 X 7.510 - 15Cylindrical surfaces
Z14.5-3020 X 20 X 6.514.5 - 30
Z25-5020 X 20 X 625 - 50
HZ11-13 20 X 20 X 511 - 13Hollow-cylindrical surfaces
HZ12.5-1720 X 20 X 512.5 - 17
HZ16.5-3020 X 20 X 516.5 - 30
K10-15 ๘20 X 7.710 - 15Spherical surfaces
K14.5-30๘20 X 6.714.5 - 30
HK11-13 ๘17 X 511 - 13Hollow-spherical surfaces
HK12.5-17๘18 X 512.5 - 17
HK16.5-30๘20 X 516.5 - 30
UN 52 X 20 X 16 Universal supporting ring

Picture

 
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