With every new batch we will issue our measuring report. The dimensions mentioned on the drawing are measured as you can see in the table below. We random check according to AQL.
The precise center bores are measured with go/no-go gauge plugs. We even measure both the top circle and axial runout as you can see in both the table below and the picture at the bottom of this page.

Example drawing

 

No.	Inspection item	Checking tool	Dimension (tolerance)	Sample 1	Sample 2
1	Number of teeth	Visual	22	OK	OK
2	Outside diameter	Micrometer	Ø54,65 (+0,1/0)	54,74	54,74
3	Inside bore diameter	Gauge plug (go/no-go)	Ø20 (+0,021/0)	OK	OK
4	Diameter for mounting the flange	Micrometer	Ø47 (-0,03/-0,1)	46,95	46,95
5	Spigot depth	Depthometer	2 (0/-0,1)	OK	OK
6	Keyway width	Width gauge (go/no-go)	6 (+0,015/-0,015)	OK	OK
7	Keyway depth	Vernier caliper	22,8 (+0,2/0)	22,84	22,84
8	Keyway symmetry	Symmetric gauge	0,07	OK	OK
9	Total length	Vernier caliper	24 (+0,2/0)	24,12	24,08
10	Flange diam. ; thickness ; zinc plating	Vernier caliper	Ø60 ; 1	OK	OK
11	Top circle runout	Mandrel, deflection instrument, dial gauge	0,08	0,04	0,04
12	Axial runout	Mandrel, deflection instrument, dial gauge	0,08	0,03	0,05
13	Teeth profile	Projection	HTD 8M	OK	OK
14	Roughness	Roughness reference and visual	Ra 3,2 ; Ra 6,3	OK	OK
15	Appearance	Visual	Color, wrong machining, corrosion, correct marking, cracks, scratches and other defects	OK	OK

 

Measurement of the top circle runout

Our sophisticated anodizing depth measuring equipment is depicted below, we will mention the outcome for you on each measuring report.