Washer DIN 6798A

Description

Stop washer in accordance with DIN 6898-A, with a square shape that allows the support and axial locking of components. It is used to secure parts on shafts or flat surfaces, preventing them from rotating or displacing during operation. It offers reliable fastening and easy mounting in mechanical assemblies.

Assembly

The assembly is carried out by positioning the stop washer on the support surface or the shaft, aligning its square with the element to be fixed. It is secured by screw or pin, ensuring a firm and stable contact. It is essential to check the correct seat to avoid slack or displacement during operation.

Materials

Available in carbon steel, stainless steel and brass, with finishes including electrolytic zinc plating, hot dip galvanizing, bichromate, nickel plating or blued, depending on the degree of protection required against corrosion and the environmental conditions of service.

Technical data

Para / For	D1	D2	H	S
M2	2.2	4.5	0.9	0.3
M2.3	2.3	4.5	0.9	0.3
M2.5	2.7	5.5	1.2	0.4
M2.6	2.8	5.5	1.2	0.4
M3	3.2	6	1.2	0.4
M3.5	3.7	7	1.5	0.5
M4	4.3	8	1.5	0.5
M5	5.1	9	1.5	0.5
M5	5.3	10	1.8	0.6
M6	6.4	11	2.1	0.7
M7	7.4	12.5	2.4	0.8
M8	8.2	14	2.4	0.8
M8	8.4	15	2.4	0.8
M10	10.5	18	2.7	0.9
M11	11.5	19.5	2.7	0.9
M12	13	20.5	3	1
M14	15	24	3	1
M16	17	26	3.6	1.2
M18	19	30	4.2	1.4
M20	21	33	4.2	1.4
M22	23	36	4.5	1.5
M24	25	38	4.5	1.5
M27	28	44	4.8	1.6
M30	31	48	4.8	1.6

Technical drawing and installation parameters of the DIN 6798A external serrated fan washers

This technical diagram defines the dimensions and geometric variables that are essential for the correct selection and installation of the DIN 6798A external serrated fan washer, with inclined teeth that bite into both surfaces. It shows the critical dimensions linked to the specification tables, such as the thread size of the bolt or nut it accompanies, the inside diameter (d1), the outside diameter measured over the tips of the teeth (d2), the material thickness (s) and the height of the washer in the free state (h). Complying with these dimensions ensures the retaining effect and the increased friction between the joined parts, keeping the joint tight against vibration and alternating loads.

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