Granite concentricity bench

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