Science, Maths & Technology
Centreless grinding
...careful finishing operations. Tolerances: Parameter Production (mm) Precision (mm) Diameter ±0.0025 ±0.00065 Parallelism ±0.0025 ±0.00065 Roundness ±0.0003 - Concentricity of stepped diameter ±0.0065 ±0.0025 Precision tolerances are far more costly to hold since they require first class machinery, wheels and operating procedures. See Also: Grinding and Creep feed...