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Internal Circlips-DIN472 Metric

The Metric DIN472 Internal Circlips is to prevent the axial movement of the parts assembled in the hole. It is usually installed in a pre-processed circular hole inner groove and installed with special circlip pliers. The outer diameter of this type of circlips is slightly larger than the diameter of the assembled circular hole.

Material: conventional carbon steel and stainless steel (65Mn, C67S, 2Cr13, 304, 1.4122, etc.)

Surface treatment: various conventional standard treatment methods, such as phosphating, Dacromet, Geomet, galvanizing, zinc-nickel plating, electrophoresis, etc.

d1: specification/nominal size; S: thickness; d3: outer diameter; a: head height; ≈ b: shoulder width; d5: small hole; Wt: weight; FN: groove bearing capacity; FR: retaining ring bearing capacity (right angle); g: chamfer size; FRg: retaining ring bearing capacity (chamfer);

Internal Circlips-DIN472 Metric

d1 S Tol d3 Tol a Max ≈b d5 Min Wt(g) d2 Tol m t N FN(KN) FR(KN) g FRg(KN) K N·mm
8
0.80
–0.05
8.7
+0.36 –0.10
2.4
1.1
1.0
0.10
8.4
+0.09
0.90
0.20
0.6
0.86
2.0
0.5
1.5
9.2
9
0.80
–0.05
9.8
+0.36 –0.10
2.5
1.3
1.0
0.13
9.4
+0.09
0.90
0.20
0.6
0.96
2.0
0.5
1.5
8.4
10
1.00
–0.06
10.8
+0.36 –0.10
3.2
1.4
1.2
0.26
10.4
+0.11
1.10
0.20
0.6
1.08
4.0
0.5
2.2
19.6
11
1.00
–0.06
11.8
+0.36 –0.10
3.3
1.5
1.2
0.31
11.4
+0.11
1.10
0.20
0.6
1.17
4.0
0.5
2.3
21.0
12
1.00
–0.06
13.0
+0.36 –0.10
3.4
1.7
1.5
0.37
12.5
+0.11
1.10
0.25
0.8
1.60
4.0
0.5
2.3
20.2
13
1.00
–0.06
14.1
+0.36 –0.10
3.6
1.8
1.5
0.42
13.6
+0.11
1.10
0.30
0.9
2.10
4.2
0.5
2.3
20.3
14
1.00
–0.06
15.1
+0.36 –0.10
3.7
1.8
1.7
0.52
14.6
+0.11
1.10
0.30
0.9
2.25
4.5
0.5
2.3
19.7
15
1.00
–0.06
16.2
+0.36 –0.10
3.7
2.0
1.7
0.56
15.7
+0.11
1.10
0.35
1.1
2.80
5.0
0.5
2.3
19.0
16
1.00
–0.06
17.3
+0.36 –0.10
3.8
2.0
1.7
0.60
16.8
+0.11
1.10
0.40
1.2
3.40
5.5
1.0
2.6
18.4
17
1.00
–0.06
18.3
+0.42 –0.13
3.9
2.1
1.7
0.65
17.8
+0.11
1.10
0.40
1.2
3.60
6.0
1.0
2.5
18.1
18
1.00
–0.06
19.5
+0.42 –0.13
4.1
2.2
2.0
0.74
19.0
+0.13
1.10
0.50
1.5
4.80
6.5
1.0
2.6
18.2
19
1.00
–0.06
20.5
+0.42 –0.13
4.1
2.2
2.0
0.73
20.0
+0.13
1.10
0.50
1.5
5.10
6.8
1.0
2.6
17.2
20
1.00
–0.06
21.5
+0.42 –0.13
4.1
2.3
2.0
0.90
21.0
+0.13
1.10
0.50
1.5
5.40
7.2
1.0
2.6
16.9
21
1.00
–0.06
22.5
+0.42 –0.13
4.2
2.4
2.0
1.00
22.0
+0.13
1.10
0.50
1.5
5.70
7.6
1.0
2.6
17.2
22
1.00
–0.06
23.5
+0.42 –0.13
4.2
2.5
2.0
1.10
23.0
+0.13
1.10
0.50
1.5
5.90
8.0
1.0
2.7
17.6
23
1.20
–0.06
24.6
+0.42 –0.13
4.2
2.5
2.0
1.34
24.1
+0.13
1.30
0.55
1.7
6.80
8.0
1.0
4.6
28.8
24
1.20
–0.06
25.9
+0.42 –0.21
4.3
2.6
2.0
1.42
25.2
+0.21
1.30
0.60
1.8
7.70
13.9
1.0
4.6
28.4
25
1.20
–0.06
26.9
+0.42 –0.21
4.5
2.7
2.0
1.50
26.2
+0.21
1.30
0.60
1.8
8.00
14.6
1.0
4.7
29.0
26
1.20
–0.06
27.9
+0.42 –0.21
4.7
2.8
2.0
1.60
27.2
+0.21
1.30
0.60
1.8
8.40
13.8
1.0
4.6
27.8
27
1.20
–0.06
29.1
+0.42 –0.21
4.7
2.9
2.0
1.75
28.4
+0.21
1.30
0.70
2.1
10.10
13.3
1.0
4.5
26.6
28
1.20
–0.06
30.1
+0.50 –0.25
4.8
2.9
2.0
1.80
29.4
+0.21
1.30
0.70
2.1
10.50
13.3
1.0
4.5
26.3
29
1.20
–0.06
31.1
+0.50 –0.25
4.8
3.0
2.0
1.88
30.4
+0.25
1.30
0.70
2.1
10.90
13.6
1.0
4.6
26.8
30
1.20
–0.06
32.1
+0.50 –0.25
4.8
3.0
2.0
2.06
31.4
+0.25
1.30
0.70
2.1
11.30
13.7
1.0
4.6
26.6
31
1.20
–0.06
33.4
+0.50 –0.25
5.2
3.1
2.5
2.10
32.7
+0.25
1.30
0.85
2.6
14.10
13.8
1.0
4.7
26.8
32
1.20
–0.06
34.4
+0.50 –0.25
5.4
3.2
2.5
2.21
33.7
+0.25
1.30
0.85
2.6
14.60
13.8
1.0
4.7
26.6
33
1.20
–0.06
35.5
+0.50 –0.25
5.4
3.3
2.5
2.40
34.7
+0.25
1.30
0.85
2.6
15.00
14.3
1.0
4.9
27.0
34
1.50
–0.06
36.5
+0.50 –0.25
5.4
3.3
2.5
3.20
35.7
+0.25
1.60
0.85
2.6
15.40
26.2
1.5
6.3
50.0
35
1.50
–0.06
37.8
+0.50 –0.25
5.4
3.4
2.5
3.54
37.0
+0.25
1.60
1.00
3.0
18.80
26.9
1.5
6.4
50.5
36
1.50
–0.06
38.8
+0.50 –0.25
5.4
3.5
2.5
3.70
38.0
+0.25
1.60
1.00
3.0
19.40
26.4
1.5
6.4
50.2
37
1.50
–0.06
39.8
+0.50 –0.25
5.5
3.6
2.5
3.74
39.0
+0.25
1.60
1.00
3.0
19.80
27.1
1.5
6.5
51.0
38
1.50
–0.06
40.8
+0.50 –0.25
5.5
3.7
2.5
3.90
40.0
+0.25
1.60
1.00
3.0
22.50
28.2
1.5
6.7
51.7
39
1.50
–0.06
42.0
+0.90 –0.39
5.6
3.8
2.5
4.00
41.0
+0.25
1.60
1.00
3.0
26.00
28.8
1.5
6.9
52.4
40
1.75
–0.06
43.5
+0.90 –0.39
5.8
3.9
2.5
4.70
42.5
+0.25
1.85
1.25
3.8
27.00
44.6
2.0
8.3
80.1
41
1.75
–0.06
44.5
+0.90 –0.39
5.9
4.0
2.5
5.10
43.5
+0.25
1.85
1.25
3.8
27.60
45.0
2.0
8.3
81.2
42
1.75
–0.06
45.5
+0.90 –0.39
5.9
4.1
2.5
5.40
44.5
+0.25
1.85
1.25
3.8
28.40
44.7
2.0
8.4
80.9
43
1.75
–0.06
46.5
+0.90 –0.39
5.9
4.2
2.5
5.60
45.5
+0.25
1.85
1.25
3.8
28.80
44.5
2.0
8.4
80.5
44
1.75
–0.06
47.5
+0.90 –0.39
6.0
4.2
2.5
5.80
46.5
+0.25
1.85
1.25
3.8
29.50
43.3
2.0
8.3
78.6
45
1.75
–0.06
48.5
+0.90 –0.39
6.2
4.3
2.5
6.00
47.5
+0.25
1.85
1.25
3.8
30.20
43.1
2.0
8.2
78.1
46
1.75
–0.06
49.5
+0.90 –0.39
6.3
4.4
2.5
6.05
48.5
+0.25
1.85
1.25
3.8
30.80
42.9
2.0
8.2
77.8
47
1.75
–0.06
50.5
+1.10 –0.46
6.4
4.4
2.5
6.10
49.5
+0.25
1.85
1.25
3.8
31.40
43.5
2.0
8.3
78.9
48
1.75
–0.06
51.5
+1.10 –0.46
6.4
4.5
2.5
6.70
50.5
+0.30
1.85
1.25
3.8
32.00
43.2
2.0
8.4
78.5
50
2.00
–0.07
54.2
+1.10 –0.46
6.5
4.6
2.5
7.30
53.0
+0.30
2.15
1.50
4.5
40.50
60.8
2.0
12.1
111.0
51
2.00
–0.07
55.2
+1.10 –0.46
6.5
4.7
2.5
7.75
54.0
+0.30
2.15
1.50
4.5
41.20
60.2
2.0
12.0
109.0
52
2.00
–0.07
56.2
+1.10 –0.46
6.7
4.7
2.5
8.20
55.0
+0.30
2.15
1.50
4.5
42.00
60.2
2.0
12.0
108.0
53
2.00
–0.07
57.2
+1.10 –0.46
6.7
4.9
2.5
8.22
56.0
+0.30
2.15
1.50
4.5
42.90
60.7
2.0
12.1
110.0
54
2.00
–0.07
58.2
+1.10 –0.46
6.7
5.0
2.5
8.25
57.0
+0.30
2.15
1.50
4.5
43.60
60.4
2.0
12.3
110.0
55
2.00
–0.07
59.2
+1.10 –0.46
6.8
5.0
2.5
8.30
58.0
+0.30
2.15
1.50
4.5
44.40
60.3
2.0
12.5
111.0
56
2.00
–0.07
60.2
+1.10 –0.46
6.8
5.1
2.5
8.80
59.0
+0.30
2.15
1.50
4.5
45.20
60.3
2.0
12.6
111.0
57
2.00
–0.07
61.2
+1.10 –0.46
6.8
5.1
2.5
9.40
60.0
+0.30
2.15
1.50
4.5
46.00
60.8
2.0
12.7
112.0
58
2.00
–0.07
62.2
+1.10 –0.46
6.9
5.2
2.5
10.50
61.0
+0.30
2.15
1.50
4.5
46.70
60.8
2.0
12.7
112.0
60
2.00
–0.07
64.2
+1.10 –0.46
7.3
5.4
2.5
11.10
63.0
+0.30
2.15
1.50
4.5
48.30
61.0
2.0
13.0
113.0
62
2.00
–0.07
66.2
+1.10 –0.46
7.3
5.5
2.5
11.20
65.0
+0.30
2.15
1.50
4.5
49.80
60.9
2.0
13.0
112.0
63
2.00
–0.07
67.2
+1.10 –0.46
7.3
5.6
2.5
12.40
66.0
+0.30
2.15
1.50
4.5
50.60
60.8
2.0
13.0
112.0
64
2.00
–0.07
68.2
+1.10 –0.46
7.4
5.7
2.5
12.45
67.0
+0.30
2.15
1.50
4.5
51.40
60.6
2.0
13.0
112.0
65
2.50
–0.07
69.2
+1.10 –0.46
7.6
5.8
3.0
14.30
68.0
+0.30
2.65
1.50
4.5
51.80
121.0
2.5
20.8
220.0
67
2.50
–0.07
71.5
+1.10 –0.46
7.7
6.0
3.0
15.30
70.0
+0.30
2.65
1.50
4.5
53.80
121.0
2.5
21.1
222.0
68
2.50
–0.07
72.5
+1.10 –0.46
7.8
6.1
3.0
16.00
71.0
+0.30
2.65
1.50
4.5
56.20
119.0
2.5
21.0
218.0
70
2.50
–0.07
74.5
+1.10 –0.46
7.8
6.2
3.0
16.50
73.0
+0.30
2.65
1.50
4.5
56.20
119.0
2.5
21.0
218.0
72
2.50
–0.07
76.5
+1.10 –0.46
7.8
6.4
3.0
18.10
75.0
+0.30
2.65
1.50
4.5
58.00
119.0
2.5
21.0
217.0
75
2.50
–0.07
79.5
+1.10 –0.46
7.8
6.6
3.0
18.80
78.0
+0.30
2.65
1.50
4.5
60.00
118.0
2.5
21.0
215.0
77
2.50
–0.07
82.5
+1.30 –0.54
8.5
6.8
3.0
20.40
80.0
+0.30
2.65
1.50
4.5
61.60
121.0
2.5
21.5
220.0
78
2.50
–0.07
82.5
+1.30 –0.54
8.5
6.8
3.0
20.40
81.0
+0.35
2.65
1.50
4.5
62.30
122.0
2.5
21.8
221.0
80
2.50
–0.07
85.5
+1.30 –0.54
8.5
7.0
3.0
22.00
83.5
+0.35
2.65
1.75
5.3
74.60
120.0
2.5
21.8
219.0
81
2.50
–0.07
86.5
+1.30 –0.54
8.5
7.0
3.0
23.00
84.5
+0.35
2.65
1.75
5.3
75.80
119.0
2.5
21.6
216.0
82
2.50
–0.07
87.5
+1.30 –0.54
8.5
7.0
3.0
24.00
85.5
+0.35
2.65
1.75
5.3
76.60
119.0
2.5
21.4
214.0
83
2.50
–0.07
88.5
+1.30 –0.54
8.5
7.0
3.0
25.00
86.5
+0.35
2.65
1.75
5.3
77.50
118.0
2.5
21.2
213.0
85
3.00
–0.08
90.5
+1.30 –0.54
8.6
7.2
3.5
25.30
88.5
+0.35
3.15
1.75
5.3
79.50
201.0
3.0
31.2
364.0
87
3.00
–0.08
93.5
+1.30 –0.54
8.6
7.4
3.5
31.00
90.5
+0.35
3.15
1.75
5.3
81.30
204.0
3.0
31.8
370.0
88
3.00
–0.08
93.5
+1.30 –0.54
8.6
7.4
3.5
31.00
91.5
+0.35
3.15
1.75
5.3
82.00
209.0
3.0
32.7
380.0
90
3.00
–0.08
95.5
+1.30 –0.54
8.6
7.6
3.5
33.00
93.5
+0.35
3.15
1.75
5.3
84.00
199.0
3.0
31.4
364.0
92
3.00
–0.08
97.5
+1.30 –0.54
8.7
7.8
3.5
35.00
95.5
+0.35
3.15
1.75
5.3
85.00
201.0
3.0
32.0
371.0
95
3.00
–0.08
100.5
+1.30 –0.54
8.8
8.1
3.5
37.00
98.5
+0.35
3.15
1.75
5.3
88.00
195.0
3.0
31.4
365.0
97
3.00
–0.08
103.5
+1.30 –0.54
9.0
8.3
3.5
41.00
100.5
+0.35
3.15
1.75
5.3
90.00
193.0
3.0
31.2
364.0
98
3.00
–0.08
103.5
+1.30 –0.54
9.0
8.3
3.5
41.00
101.5
+0.35
3.15
1.75
5.3
91.00
191.0
3.0
31.0
361.0
100
3.00
–0.08
105.5
+1.30 –0.54
9.2
8.4
3.5
42.00
103.5
+0.35
3.15
1.75
5.3
93.00
188.0
3.0
30.8
359.0
102
4.00
–0.10
108.0
+1.30 –0.54
9.5
8.5
3.5
55.00
106.0
+0.54
4.15
2.00
6.0
108.00
439.0
3.0
72.6
846.0
105
4.00
–0.10
112.0
+1.30 –0.54
9.5
8.7
3.5
56.00
109.0
+0.54
4.15
2.00
6.0
112.00
436.0
3.0
73.0
850.0
107
4.00
–0.10
115.0
+1.30 –0.54
9.5
8.9
3.5
60.00
111.0
+0.54
4.15
2.00
6.0
114.00
425.0
3.0
71.6
834.0
108
4.00
–0.10
115.0
+1.30 –0.54
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388.00
278.0
+0.81
5.15
4.00
12.0
573.00
518.0
4.0
77.0
1188.0
272
5.00
–0.12
285.0
+2.00 –0.81
16.2
16.0
5.0
388.00
280.0
+0.81
5.15
4.00
12.0
577.00
515.0
4.0
76.5
1180.0
275
5.00
–0.12
290.0
+2.00 –0.81
16.2
16.0
5.0
393.00
283.0
+0.81
5.15
4.00
12.0
585.00
509.0
4.0
75.5
1167.0
277
5.00
–0.12
290.0
+2.00 –0.81
16.2
16.0
5.0
393.00
285.0
+0.81
5.15
4.00
12.0
587.00
505.0
4.0
75.0
1158.0
278
5.00
–0.12
295.0
+2.00 –0.81
16.2
16.0
5.0
400.00
286.0
+0.81
5.15
4.00
12.0
590.00
504.0
4.0
75.0
1154.0
280
5.00
–0.12
295.0
+2.00 –0.81
16.2
16.0
5.0
400.00
288.0
+0.81
5.15
4.00
12.0
593.00
499.0
4.0
74.0
1145.0
282
5.00
–0.12
295.0
+2.00 –0.81
16.2
16.0
5.0
400.00
290.0
+0.81
5.15
4.00
12.0
599.00
497.0
4.0
74.0
1138.0
285
5.00
–0.12
300.0
+2.00 –0.81
16.2
16.0
5.0
408.00
293.0
+0.81
5.15
4.00
12.0
605.00
491.0
4.0
73.0
1124.0
287
5.00
–0.12
300.0
+2.00 –0.81
16.2
16.0
5.0
408.00
295.0
+0.81
5.15
4.00
12.0
610.00
487.0
4.0
72.0
1117.0
288
5.00
–0.12
305.0
+2.00 –0.81
16.2
16.0
5.0
415.00
296.0
+0.81
5.15
4.00
12.0
611.00
485.0
4.0
72.0
1111.0
290
5.00
–0.12
305.0
+2.00 –0.81
16.2
16.0
5.0
415.00
298.0
+0.81
5.15
4.00
12.0
615.00
482.0
4.0
71.5
1104.0
292
5.00
–0.12
305.0
+2.00 –0.81
16.2
16.0
5.0
415.00
300.0
+0.81
5.15
4.00
12.0
620.00
479.0
4.0
71.0
1098.0
295
5.00
–0.12
310.0
+2.00 –0.81
16.2
16.0
5.0
426.00
303.0
+0.81
5.15
4.00
12.0
625.00
474.0
4.0
70.5
1087.0
297
5.00
–0.12
310.0
+2.00 –0.81
16.2
16.0
5.0
426.00
305.0
+0.81
5.15
4.00
12.0
630.00
471.0
4.0
70.5
1079.0
298
5.00
–0.12
315.0
+2.00 –0.81
16.2
16.0
5.0
435.00
306.0
+0.81
5.15
4.00
12.0
631.00
469.0
4.0
69.5
1075.0
300
5.00
–0.12
315.0
+2.00 –0.81
16.2
16.0
5.0
435.00
308.0
+0.81
5.15
4.00
12.0
636.00
466.0
4.0
69.0
1068.0
305
6.00
–0.15
322.0
+2.00 –0.90
16(20)
6.0
755.00
315.0
+0.81
6.20
5.00
15.0
810.00
961.0
5.0
114.0
2202.0
310
6.00
–0.15
327.0
+2.00 –0.90
16(20)
6.0
770.00
320.0
+0.89
6.20
5.00
15.0
823.00
947.0
5.0
113.0
2169.0
315
6.00
–0.15
332.0
+2.00 –0.90
16(20)
6.0
785.00
325.0
+0.89
6.20
5.00
15.0
837.00
934.0
5.0
111.0
2140.0
320
6.00
–0.15
337.0
+2.00 –0.90
16(20)
6.0
800.00
330.0
+0.89
6.20
5.00
15.0
850.00
919.0
5.0
109.0
2105.0
325
6.00
–0.15
342.0
+2.00 –0.90
16(20)
6.0
810.00
335.0
+0.89
6.20
5.00
15.0
864.00
906.0
5.0
108.0
2076.0
330
6.00
–0.15
347.0
+2.00 –0.90
16(20)
6.0
820.00
340.0
+0.89
6.20
5.00
15.0
876.00
894.0
5.0
106.0
2048.0
335
6.00
–0.15
352.0
+2.00 –0.90
16(20)
6.0
830.00
345.0
+0.89
6.20
5.00
15.0
890.00
880.0
5.0
105.0
2017.0
340
6.00
–0.15
357.0
+2.00 –0.90
16(20)
6.0
840.00
350.0
+0.89
6.20
5.00
15.0
903.00
869.0
5.0
104.0
1991.0
345
6.00
–0.15
362.0
+2.00 –0.90
16(20)
6.0
855.00
355.0
+0.89
6.20
5.00
15.0
916.00
857.0
5.0
102.0
1964.0
350
6.00
–0.15
367.0
+2.00 –0.90
16(20)
6.0
870.00
360.0
+0.89
6.20
5.00
15.0
929.00
846.0
5.0
101.0
1938.0
355
6.00
–0.15
372.0
+2.00 –0.90
16(20)
6.0
880.00
365.0
+0.89
6.20
5.00
15.0
942.00
834.0
5.0
99.0
1910.0
360
6.00
–0.15
377.0
+2.00 –0.90
16(20)
6.0
890.00
370.0
+0.89
6.20
5.00
15.0
955.00
823.0
5.0
98.0
1886.0
365
6.00
–0.15
382.0
+2.00 –0.90
16(20)
6.0
906.00
375.0
+0.89
6.20
5.00
15.0
968.00
813.0
5.0
97.0
1862.0
370
6.00
–0.15
387.0
+2.00 –0.90
16(20)
6.0
920.00
380.0
+0.89
6.20
5.00
15.0
981.00
803.0
5.0
95.0
1839.0
375
6.00
–0.15
392.0
+2.00 –0.90
16(20)
6.0
932.00
385.0
+0.89
6.20
5.00
15.0
994.00
793.0
5.0
94.0
1817.0
380
6.00
–0.15
397.0
+2.00 –0.90
16(20)
6.0
940.00
390.0
+0.89
6.20
5.00
15.0
1008.00
784.0
5.0
93.0
1796.0
385
6.00
–0.15
402.0
+2.00 –1.00
16(20)
6.0
950.00
395.0
+0.89
6.20
5.00
15.0
1021.00
774.0
5.0
92.0
1774.0
390
6.00
–0.15
407.0
+2.00 –1.00
16(20)
6.0
960.00
400.0
+0.89
6.20
5.00
15.0
1033.00
764.0
5.0
91.0
1751.0
395
6.00
–0.15
412.0
+2.00 –1.00
16(20)
6.0
972.00
405.0
+1.00
6.20
5.00
15.0
1047.00
756.0
5.0
90.0
1732.0
400
6.00
–0.15
417.0
+2.00 –1.00
16(20)
6.0
980.00
410.0
+1.00
6.20
5.00
15.0
1060.00
746.0
5.0
89.0
1710.0
410
7.00
–0.15
430.0
+2.00 –1.00
23(26)
6.0
1380.00
422.0
+1.00
7.20
6.00
18.0
1307.00
1512.0
6.0
150.0
3463.0
420
7.00
–0.15
440.0
+2.00 –1.00
23(26)
6.0
1410.00
432.0
+1.00
7.20
6.00
18.0
1338.00
1480.0
6.0
147.0
3391.0
430
7.00
–0.15
450.0
+2.00 –1.00
23(26)
6.0
1440.00
442.0
+1.00
7.20
6.00
18.0
1369.00
1446.0
6.0
144.0
3312.0
440
7.00
–0.15
460.0
+2.00 –1.00
23(26)
6.0
1470.00
452.0
+1.00
7.20
6.00
18.0
1401.00
1418.0
6.0
141.0
3248.0
450
7.00
–0.15
470.0
+2.00 –1.00
23(26)
6.0
1510.00
462.0
+1.00
7.20
6.00
18.0
1431.00
1388.0
6.0
138.0
3180.0
460
7.00
–0.15
480.0
+2.00 –1.00
23(26)
6.0
1550.00
472.0
+1.00
7.20
6.00
18.0
1464.00
1360.0
6.0
135.0
3116.0
470
7.00
–0.15
490.0
+2.00 –1.00
23(26)
6.0
1595.00
482.0
+1.00
7.20
6.00
18.0
1495.00
1330.0
6.0
132.0
3048.0
480
7.00
–0.15
500.0
+2.00 –1.00
23(26)
6.0
1640.00
492.0
+1.00
7.20
6.00
18.0
1526.00
1306.0
6.0
130.0
2991.0
490
7.00
–0.15
510.0
+3.00 –1.50
23(26)
6.0
1685.00
502.0
+1.00
7.20
6.00
18.0
1558.00
1280.0
6.0
127.0
2931.0
500
7.00
–0.15
520.0
+3.00 –1.50
23(26)
6.0
1730.00
512.0
+1.00
7.20
6.00
18.0
1588.00
1256.0
6.0
125.0
2878.0
510
8.00
–0.15
535.0
+3.00 –1.50
23(26)
6.0
2250.00
524.0
+1.00
8.20
7.00
21.0
1894.00
1834.0
7.0
156.0
4201.0
520
8.00
–0.15
545.0
+3.00 –1.50
23(26)
6.0
2290.00
534.0
+1.00
8.20
7.00
21.0
1931.00
1802.0
7.0
153.0
4128.0
530
8.00
–0.15
555.0
+3.00 –1.50
23(26)
6.0
2335.00
544.0
+1.00
8.20
7.00
21.0
1968.00
1768.0
7.0
150.0
4049.0
540
8.00
–0.15
565.0
+3.00 –1.50
23(26)
6.0
2380.00
554.0
+1.00
8.20
7.00
21.0
2004.00
1738.0
7.0
148.0
3981.0
550
8.00
–0.15
575.0
+3.00 –1.50
23(26)
6.0
2430.00
564.0
+1.00
8.20
7.00
21.0
2041.00
1711.0
7.0
145.0
3919.0
560
8.00
–0.15
585.0
+3.00 –1.50
23(26)
6.0
2495.00
574.0
+1.00
8.20
7.00
21.0
2078.00
1682.0
7.0
143.0
3852.0
570
8.00
–0.15
595.0
+3.00 –1.50
23(26)
6.0
2560.00
584.0
+1.00
8.20
7.00
21.0
2114.00
1650.0
7.0
141.0
3790.0
580
8.00
–0.15
605.0
+3.00 –1.50
23(26)
6.0
2625.00
594.0
+1.00
8.20
7.00
21.0
2151.00
1627.0
7.0
138.0
3728.0
590
8.00
–0.15
615.0
+3.00 –1.50
23(26)
6.0
2700.00
604.0
+1.00
8.20
7.00
21.0
2188.00
1601.0
7.0
136.0
3668.0
600
8.00
–0.15
625.0
+3.00 –1.50
23(26)
6.0
2770.00
614.0
+1.00
8.20
7.00
21.0
2221.00
1571.0
7.0
134.0
3598.0
650
9.00
–0.20
680.0
+3.00 –1.50
23(34)
6.0
3600.00
666.0
+1.00
9.30
8.00
24.0
2753.00
2654.0
7.0
226.0
6078.0
700
9.00
–0.20
730.0
+4.00 –2.00
23(34)
6.0
4120.00
716.0
+1.00
9.30
8.00
24.0
2966.00
2471.0
7.0
210.0
5661.0
750
9.00
–0.20
785.0
+4.00 –2.00
23(34)
9.0
4540.00
768.0
+1.00
9.30
9.00
27.0
3566.00
2310.0
7.0
196.0
5285.0
800
9.00
–0.20
835.0
+4.00 –2.00
23(34)
9.0
5450.00
818.0
+1.00
9.30
9.00
27.0
3800.00
2176.0
7.0
184.0
4980.0
850
9.00
–0.20
890.0
+4.00 –2.00
23(34)
9.0
5990.00
870.0
+1.00
9.30
10.00
30.0
4500.00
2045.0
7.0
173.0
4680.0
900
9.00
–0.20
940.0
+4.00 –2.00
23(34)
9.0
6740.00
920.0
+1.00
9.30
10.00
30.0
4766.00
1938.0
7.0
164.0
4435.0
950
9.00
–0.20
1000.0
+4.00 –2.00
23(34)
9.0
7930.00
972.0
+1.00
9.30
11.00
33.0
5608.00
1840.0
7.0
156.0
4210.0
1000
9.00
–0.20
1050.0
+4.00 –2.00
23(34)
9.0
8880.00
1022.0
+1.00
9.30
11.00
33.0
5825.00
1752.0
7.0
148.0
4010.0
About Us
Anhui Ningguo Dongbo Fastener Co., Ltd.
Dongbo was established in September 2005 with a registered capital of 47.72 million. It is located in the national Ningguo Economic and Technological Development Zone, covers an area of ​​91 acres, and currently has more than 420 employees. As a Custom DIN472 1.4122 Circlips Suppliers and DIN472 Internal Retaining Ring Company, the company has been focusing on the production of retaining rings for 46 years, producing washers (round, butterfly, spherical), retaining rings, elastic cylindrical pins and other series of products and non-standard customized stamping parts. It is a high-tech enterprise with large scale, multiple varieties, complete specifications, and integrated manufacturing, R&D and sales in the industry.
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News

  • Oct 31,2025

    Beveled Retaining Rings Functional Guide

    Preload Mechanics and Axial Retention Advantages A beveled retaining ring delivers axial retention by applying a controlled radial spring force combined with axial thrust, formed by the angled cross-section. This structu...

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  • Oct 23,2025

    Common Applications of Snap Rings in Machinery and Equipment

    1. Automotive Systems Snap rings play a critical role in automotive assemblies where reliable part retention and compact design are essential. They prevent components from moving axially while allowing for efficient asse...

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  • Oct 16,2025

    What Are 1.4122 Circlips, and What Distinguishes Them from Circlips Made of Other Stainless Steel Grades?

    1.4122 circlips are precision-engineered retaining rings manufactured from 1.4122 stainless steel, a martensitic chromium steel known for its high hardness, strength, and moderate corrosion resistance. These circlips are...

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  • Oct 11,2025

    What Are the Differences Between Standard, Heavy-Duty, and Stainless Steel External Circlips?

    External circlips are essential components in mechanical assemblies, serving as retaining rings that securely hold shafts, bearings, gears, and other cylindrical parts in place. They are widely used in automotive, indust...

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Internal Circlips-DIN472 Metric Industry knowledge

The Role of DIN 472 Circlips in Ensuring Secure Axial Positioning in Circular Holes

The DIN 472 standard defines the specifications for internal circlips, which are installed in pre-processed grooves within circular holes. These circlips are engineered to provide a secure fit by exerting a controlled radial force against the groove walls. Their primary function is to retain components axially on a shaft or within a bore, preventing unwanted movement during operation.

Unlike external circlips, which are installed on the outer surface of a shaft, DIN 472 internal circlips are designed to fit snugly inside a hole, with their outer diameter slightly larger than the diameter of the assembled circular hole. This interference fit ensures that the circlip remains securely seated, even under dynamic conditions such as shock, vibration, or high-speed rotation.

How Do DIN 472 Circlips Work?
The effectiveness of DIN 472 circlips lies in their design and material properties. Made from high-quality materials such as carbon steel (65Mn, C67S) or stainless steel (304, 2Cr13, 1.4122) , these circlips possess excellent elasticity, strength, and fatigue resistance. When installed using specialized circlip pliers , the circlip expands slightly to fit into the groove and then contracts to its original shape, creating a tight seal that prevents axial displacement.

Key features of DIN 472 circlips include:
Interference Fit : Ensures the circlip remains securely seated in the groove.
Spring Properties : Allows the circlip to absorb shocks and vibrations without permanent deformation.
Precision Dimensions : Tight tolerances ensure consistent performance across various applications.
Applications Across Industries
DIN 472 internal circlips are widely used in applications where axial retention is critical. Some common examples include:

Automotive Industry : In engines, transmissions, and suspension systems, DIN 472 circlips are used to retain components such as bearings, gears, and bushings, ensuring smooth operation under high loads and vibrations.
Aerospace Engineering : In aircraft components like landing gear assemblies and control systems, these circlips provide reliable axial retention while withstanding extreme conditions, including temperature fluctuations and high-frequency vibrations.
Industrial Machinery : From conveyor systems to heavy-duty equipment, DIN 472 circlips are essential for securing rotating or reciprocating parts, reducing downtime and maintenance costs.
Medical Devices : Precision-engineered circlips are used in medical instruments and diagnostic equipment, where accuracy and reliability are non-negotiable.
Material Selection and Surface Treatments
To meet the demands of diverse operating environments, DIN 472 internal circlips are available in a variety of materials and surface treatments. 
Common options include:
Carbon Steel : Offers high strength and durability, making it suitable for general-purpose applications.
Stainless Steel : Provides excellent corrosion resistance, ideal for harsh environments such as marine or chemical processing.
Surface Treatments : Options like phosphating , Dacromet , Geomet , galvanizing , and zinc-nickel plating enhance the circlip’s resistance to wear, rust, and environmental degradation.
These material and treatment choices ensure that DIN 472 circlips can perform reliably in virtually any application, whether exposed to moisture, chemicals, or extreme temperatures.

Why Choose Anhui Ningguo Dongbo Fastener Co., Ltd.?
When it comes to sourcing high-quality DIN 472 internal circlips, Anhui Ningguo Dongbo Fastener Co., Ltd. stands out as a trusted partner. Established in September 2005 and located in the Ningguo Economic and Technological Development Zone , Dongbo Fastener has over 46 years of experience in producing retaining rings, washers, elastic cylindrical pins, and other precision-engineered components.

With a focus on innovation and customer satisfaction, Dongbo Fastener offers:
Comprehensive Product Range : From standard DIN 472 circlips to fully customized solutions tailored to specific needs.
Advanced Manufacturing Techniques : Utilizing state-of-the-art equipment and processes to ensure dimensional accuracy and consistency.
Commitment to Quality : Rigorous testing and quality assurance protocols ensure every product meets or exceeds industry standards.
One-Stop Solutions : From mass production to custom development, Dongbo provides integrated manufacturing, R&D, and sales services.