7 mm External Retaining Ring (Shaft Circlip), DIN 471

The 7 mm external retaining ring (DIN 471) fits a 7 mm shaft with a groove diameter of 6.7 mm, and is 0.8 mm thick. Here as simplified STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: 7 mm circlip
• Model id: din471-d7
• Standard: DIN 471:2011 · size 7 mm

Files

Part key	Simplified
din471-d7	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
s	Ring thickness		0.8		0.8	nominal	L1
s_lim	Ring thickness, limits	0.75		0.8	0.775	midpoint of min–max	L0 (max: one source)
d3	Free diameter		6.5		6.5	nominal	L1
d3_lim	Free diameter, limits	6.32		6.56	6.44	midpoint of min–max	L1
a	Lug height			3.1	3.1	single limit (max), modeled at the limit	L1
b	Radial width		1.4 ref		1.4	reference value	L1
d5	Plier hole diameter	1.2			1.2	single limit (min), modeled at the limit	L1
d2	Groove diameter		6.7		6.7	nominal	L1
m	Groove width		0.9		0.9	nominal	L1
n	Groove edge margin	0.5			0.5	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-DIN471-SZ-7.pdf.

The 7 mm external retaining ring beside the 6 mm and the 8 mm

The 7 mm is number 5, counting from the smallest, of the 18 DIN 471 external retaining rings published here, from 3 mm to 20 mm.

• Ring thickness (s): 0.8 mm on the 7 mm external retaining ring, against 0.7 mm on the 6 mm and 0.8 mm on the 8 mm.
• Ring thickness, limits (s_lim): 0.75 to 0.8 mm on the 7 mm external retaining ring, against 0.65 to 0.7 mm on the 6 mm and 0.75 to 0.8 mm on the 8 mm.
• Free diameter (d3): 6.5 mm on the 7 mm external retaining ring, against 5.6 mm on the 6 mm and 7.4 mm on the 8 mm.
• Free diameter, limits (d3_lim): 6.32 to 6.56 mm on the 7 mm external retaining ring, against 5.45 to 5.64 mm on the 6 mm and 7.22 to 7.46 mm on the 8 mm.
• Lug height (a): up to 3.1 mm on the 7 mm external retaining ring, against up to 2.7 mm on the 6 mm and up to 3.2 mm on the 8 mm.
• Radial width (b): 1.4 mm (reference) on the 7 mm external retaining ring, against 1.3 mm (reference) on the 6 mm and 1.5 mm (reference) on the 8 mm.
• Plier hole diameter (d5): at least 1.2 mm on the 7 mm external retaining ring, the same on the 6 mm and the 8 mm.
• Groove diameter (d2): 6.7 mm on the 7 mm external retaining ring, against 5.7 mm on the 6 mm and 7.6 mm on the 8 mm.

Other sizes

• One size smaller: 6 mm External Retaining Ring (Shaft Circlip), DIN 471, 6 mm shaft, 5.7 mm groove, 0.7 mm thick.
• One size larger: 8 mm External Retaining Ring (Shaft Circlip), DIN 471, 8 mm shaft, 7.6 mm groove, 0.8 mm thick.

Documents

• CC-DIN471-DS-7.pdf: 7 datasheet: values with levels, sources
• CC-DIN471-SZ-7.pdf: 7 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

fasten-it-din471, fasteners-eu-din471, hc-maschinentechnik-din471, seeger-din471. Full citations: the method page and this size's datasheet.

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