DIN 6799 Retaining Ring for Shafts

The DIN 6799 retaining ring is designed for installation on shafts, axles, and rods from the outer side. In appearance, it is a flat disc with a gap and a wide central hole. Along the inner perimeter of the ring are three oval protrusions designed to ensure reliable fastening of the part on the axle.

Installing this type of fastener is simple — an ordinary screwdriver is enough to engage the ring. Thanks to its unusual configuration, the DIN 6799 retaining ring can spring and fit snugly onto the shaft in the grooves or splines provided for this purpose. The rim of the fastener protruding beyond the groove serves as a reliable retainer for a pulley, bearing, or gear in its designated position on the device.

Technical specifications of the DIN 6799 retaining ring for shafts

The quick-release retaining ring is made predominantly of spring steel, which passes its properties on to the finished product. In addition, the standard allows the use of high-quality alloy steels with a durable anti-corrosion coating applied by galvanic zinc plating.

Facilities equipped with modern high-precision equipment use cold rolling technology to manufacture DIN 6799 retaining washers. Because high temperatures are not used, the best properties of the raw material are preserved unchanged.

Retaining washers made of stainless chromium-nickel alloys are also popular: grade A2, with high resistance to moisture, and grade A4, capable of withstanding contact with acids, alkalis, and sea water. Bronze rings are intended for use in special fastener assemblies. Thus, from the wide range of retaining rings, one can select products best suited to specific operating and installation conditions.

Among Russian regulatory documents, GOST 11648-75 has requirements closest to those of the German standard DIN 6799. However, it would be a mistake to consider them full equivalents. When selecting quick-release rings, carefully compare the marking data of the fastener with the requirements of the assembly drawings. Products manufactured according to these standards may differ in dimensions and properties of the source materials.

DIN 6799 Retaining Rings from FLOK

FLOK supplies DIN 6799 retaining rings in the full size range and across a range of materials.

Dimensions of the DIN 6799 retaining ring for shafts

d	a	d3	s
1.5	1.28	4.25	0.4
2.3	1.94	6.3	0.6
3.2	2.7	7.3	0.6
4.0	3.34	9.3	0.7
5.0	4.11	11.3	0.7
6.0	5.26	12.3	0.7
7.0	5.84	14.3	0.9
8.0	6.52	16.3	1.0
9.0	7.63	18.8	1.1
10.0	8.32	20.4	1.2
12.0	10.45	23.4	1.3
15.0	12.61	29.4	1.5

d₁	d₂	d₃	s	m	n
0.8	2.25	1 - 1.4	0.2	0.24	0.4
1.2	3.25	1.4 - 2	0.3	0.34	0.6
1.5	4.25	2 - 2.5	0.4	0.44	0.8
1.9	4.8	2.5 - 3	0.5	0.54	1
2.3	6.3	3 - 4	0.6	0.64	1
3.2	7.3	4 - 5	0.6	0.64	1
4	9.3	5 - 7	0.7	0.74	1.2
5	11.3	6 - 8	0.7	0.74	1.2
6	12.3	7 - 9	0.7	0.74	1.2
7	14.3	8 - 11	0.9	0.94	1.5
8	16.3	9 - 12	1.0	1.05	1.8
9	18.8	10 - 14	1.1	1.15	2
10	20.4	11 - 15	1.2	1.25	2
12	23.4	13 - 18	1.3	1.35	2.5
15	29.4	16 - 24	1.5	1.55	3
19	37.6	20 - 31	1.75	1.80	3.5
24	44.6	25 - 38	2	2.05	4

Designations:

d₁ - shaft groove diameter

d₂ - outer diameter of the washer

d₃ - shaft diameter

s - washer thickness

m - shaft groove width

n - minimum protrusion