Metric Belleville (DIN 6796)

Bolted joints will work loose due to a loss of preload. This can be caused by permanent set in any part of the assembly. Belleville washers will counteract this loosening by increasing the axial compliance of the joint.

The load values listed in the table below are according to the calculated theoretical load curve based on the dimensions and material for each part number.

Part Number	OD in	ID in	THICK in	DISH in	HEIGHT in	Load 100% lb	OD mm	ID mm	THICK mm	DISH mm
6796-2	0.197	0.087	0.016	0.008	0.024	142	5	2.2	0.4	0.2
6796-2.5	0.236	0.106	0.02	0.009	0.028	214	6	2.7	0.5	0.22
6796-3	0.276	0.126	0.024	0.01	0.033	310	7	3.2	0.6	0.25
6796-3.5	0.315	0.146	0.031	0.01	0.042	588	8	3.7	0.8	0.26
6796-4	0.354	0.169	0.039	0.012	0.051	1064	9	4.3	1	0.3
6796-5	0.433	0.209	0.047	0.014	0.061	1442	11	5.3	1.2	0.35
6796-6	0.551	0.252	0.059	0.02	0.079	2423	14	6.4	1.5	0.5
6796-7	0.669	0.291	0.069	0.022	0.091	2815	17	7.4	1.75	0.55
6796-8	0.709	0.331	0.079	0.024	0.102	4208	18	8.4	2	0.6
6796-10	0.906	0.413	0.098	0.028	0.126	5815	23	10.5	2.5	0.7
6796-12	1.142	0.512	0.118	0.037	0.156	8513	29	13	3	0.95
6796-14	1.378	0.591	0.138	0.045	0.183	11046	35	15	3.5	1.15
6796-16	1.535	0.669	0.157	0.049	0.207	14522	39	17	4	1.25
6796-18	1.654	0.748	0.177	0.051	0.228	18814	42	19	4.5	1.3
6796-20	1.772	0.827	0.197	0.055	0.252	24544	45	21	5	1.4
6796-22	1.929	0.906	0.217	0.061	0.278	30588	49	23	5.5	1.55
6796-24	2.205	0.984	0.236	0.069	0.305	33587	56	25	6	1.75
6796-27	2.362	1.102	0.256	0.073	0.329	40082	60	28	6.5	1.85
6796-30	2.756	1.22	0.276	0.087	0.362	42776	70	31	7	2.2

lo(max) = height as delivered
lo(min) = height after initial flattening