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

The 11 mm external retaining ring (DIN 471) fits an 11 mm shaft with a groove diameter of 10.5 mm, and is 1 mm thick. Here as simplified STEP files.

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

• Also searched as: 11 mm circlip
• Model id: din471-d11
• Standard: DIN 471:2011 · size 11 mm

Files

Part key	Simplified
din471-d11	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
s	Ring thickness		1		1	nominal	L1
s_lim	Ring thickness, limits	0.94		1	0.97	midpoint of min–max	L0 (max: one source)
d3	Free diameter		10.2		10.2	nominal	L1
d3_lim	Free diameter, limits	9.84		10.3	10.07	midpoint of min–max	L1
a	Lug height			3.3	3.3	single limit (max), modeled at the limit	L1
b	Radial width		1.8 ref		1.8	reference value	L1
d5	Plier hole diameter	1.5			1.5	single limit (min), modeled at the limit	L1
d2	Groove diameter		10.5		10.5	nominal	L1
m	Groove width		1.1		1.1	nominal	L1
n	Groove edge margin	0.8			0.8	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-DIN471-SZ-11.pdf.

The 11 mm external retaining ring beside the 10 mm and the 12 mm

The 11 mm is number 9, counting from the smallest, of the 18 DIN 471 external retaining rings published here, from 3 mm to 20 mm.

• Ring thickness (s): 1 mm on the 11 mm external retaining ring, the same on the 10 mm and the 12 mm.
• Ring thickness, limits (s_lim): 0.94 to 1 mm on the 11 mm external retaining ring, the same on the 10 mm and the 12 mm.
• Free diameter (d3): 10.2 mm on the 11 mm external retaining ring, against 9.3 mm on the 10 mm and 11 mm on the 12 mm.
• Free diameter, limits (d3_lim): 9.84 to 10.3 mm on the 11 mm external retaining ring, against 8.94 to 9.4 mm on the 10 mm and 10.64 to 11.1 mm on the 12 mm.
• Lug height (a): up to 3.3 mm on the 11 mm external retaining ring, the same on the 10 mm and the 12 mm.
• Radial width (b): 1.8 mm (reference) on the 11 mm external retaining ring, the same on the 10 mm and the 12 mm.
• Plier hole diameter (d5): at least 1.5 mm on the 11 mm external retaining ring, against at least 1.5 mm on the 10 mm and at least 1.7 mm on the 12 mm.
• Groove diameter (d2): 10.5 mm on the 11 mm external retaining ring, against 9.6 mm on the 10 mm and 11.5 mm on the 12 mm.

Other sizes

• One size smaller: 10 mm External Retaining Ring (Shaft Circlip), DIN 471, 10 mm shaft, 9.6 mm groove, 1 mm thick.
• One size larger: 12 mm External Retaining Ring (Shaft Circlip), DIN 471, 12 mm shaft, 11.5 mm groove, 1 mm thick.

Documents

• CC-DIN471-DS-11.pdf: 11 datasheet: values with levels, sources
• CC-DIN471-SZ-11.pdf: 11 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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