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National standard for tungsten carbide balls

Time：2023-09-14

Tolerance class and technical requirements
grade	Ball diameter variation	Spherical deviation	Surface roughness of the pitch	Batch diameter variation	Basic diameter tolerances
	Vdws	△Sph	Ra	Vdwl	Tdn
	Not exceeded
	um
10	0.25	0.25	0.025	0.5	*
16	0.4	0.40	0.032	0.8	*
20	0.5	0.50	0.04	1	*
28	0.7	0.70	0.05	1.4	*
40	1.0	1.00	0.08	2	*
60	1.5

Keywords： National standard for tungsten carbide balls

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