Widly used for measuring the axial and disk products and parts, and mainly inspecting their radial bound
physical properties of “JiNan Black ”
Specific granvity:2970-3070kg/m3
Compression strength :245-254N/mm2
Elastic modulus:1.27-1.47 N/mm2
Linear expansion coefficient:0.0000461%(4.61*10^-6)
Water absorbtivity<0.13%
Shore hardness :above Hs 70
Blacke Granite concentricity bench
For the testing of radial and axial run-out of any cylindrical and disk-like parts.Stainless T-slot is glued in the middle of the granite base. The width of the T-slot is 16HB with an accuracy of 0.005mm/m . The granite base is lapped according to DIN876/0,with 3 adjustable feet under it.
umax (mm) | weight (kg) | Length (mm) | Width (mm) | Height (mm) | T (mm) | grade 1 | grade 0 | ||
| code | squareness (μm) | code | squareness (μm) | ||||||
| 300 | 76.0 | 700 | 250 | 150 | 100 | 01010 | 13.6 | 01001 | 6.8 |
| 600 | 149.0 | 1000 | 300 | 150 | 140 | 02010 | 16.0 | 02001 | 8.0 |
| 1100 | 307.0 | 1500 | 350 | 150 | 180 | 03010 | 20.0 | 03001 | 10.0 |
Remarks:
1. We can product according to customers' drawing.
2. We can also make the granite measuring tool according to different countries' standard
Granite concentricity bench
