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DIN 983 Standard Dimensions for External retaining rings with lugs

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Retaining rings with lugs for shafts (internal circlips)
This standard DIN 983 applies for retaining rings with lugs for shafts. The retaining rings are suitable for holding machine parts which have chamfer dimensions (fillets or chamfers), and for concealed installation. They are formed eccentrically and have several lugs with the same radial width distributed on the circumference.

Dimensional Drawing and Technical Diagrams

150_3005.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 983
Publication date 06/2021 Supersedes DIN 983: 04 - 2011

shaft diameter d1 nom

 Circlip Groove ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3)
a max
≈ b
d3 nom
 d4 min s nom
d2 nom
 m n min
16
 3.5
2.3
14.7
 1.7 1
15.2
 1.1 1.2 0.82
17
 3.6 2.3
15.7
 1.7 1
16.2
 1.1 1.2 0.93
18
 3.7
2.4
16.5
 2 1.2
17.0
 1.3 1.5 1.24
19
 3.7 2.5
17.5
 2 1.2
18
 1.3 1.5 1.35
20
 3.8 2.6
18.5
 2 1.2
19.0
 1.3 1.5 1.45
22
 4 2.8
20.5
 2 1.2
21.0
 1.3 1.5 1.77
23
 4.1 2.9
21.5
 2 1.2
22
 1.3 1.5 1.84
24
 4.2 3
22.2
 2 1.2
22.9
 1.3 1.7 1.98
25
 4.3 3
23.2
 2 1.2
23.9
 1.3 1.7 2.12
26
 4.4 3.1
24.2
 2 1.2
24.9
 1.3 1.7 2.18
28
 4.5 3.2
25.9
 2 1.5
26.6
 1.6 2.1 3.15
30
 4.7 3.5
27.9
 2 1.5
28.6
 1.6 2.1 3.65
32
 5 3.6
29.6
 2.5 1.5
30.3
 1.6 2.6 4
35
 5.2 3.9
32.2
 2.5 1.5
33.0
 1.6 3 4.38
38
 5.5 4.2
35.2
 2.5 1.75
36.0
 1.85 3 6.5
40
 7.2 4.4
36.5
 2.5 1.75
37.5
 1.85 3.8 7
42
 7.2 4.5
38.5
 2.5 1.75
39.5
 1.85 3.8 7.5
45
 7.2 4.7
41.5
 2.5 1.75
42.5
 1.85 3.8 8.5
47
 7.2 4.9
43.5
 2.5 1.75
44.5
 1.85 3.8 8.7
48
 7.2 5
44.5
 2.5 1.75
45.5
 1.85 3.8 8.9
50
 8.2 5.1
45.8
 2.5 2
47.0
 2.15 4.5 11.5
55
 8.2 5.4
50.8
 2.5 2
52.0
 2.15 4.5 13
57
 8.2 5.5
52.8
 2.5 2
54
 2.15 4.5 14
58
 8.2 5.6
53.8
 2.5 2
55
 2.15 4.5 14.3
60
 8.2 5.8
55.8
 2.5 2
57.0
 2.15 4.5 14.8
62
 8.2 6
57.8
 2.5 2
59
 2.15 4.5 15.9
65
 10.2 6.3
60.8
 3 2.5
62.0
 2.65 4.5 21.7
67
 10.2 6.4
62.5
 3 2.5
64
 2.65 4.5 22.6
68
 10.2 6.5
63.5
 3 2.5
65.0
 2.65 4.5 23.5
70
 10.2 6.6
65.5
 3 2.5
67.0
 2.65 4.5 25.1
75
 10.2 7
70.5
 3 2.5
72.0
 2.65 4.5 28.2
80
 10.2 7.4
74.5
 3 2.5
76.5
 2.65 5.3 30.8
85
 10.2 7.8
79.5
 3.5 3
81.5
 3.15 5.3 39.5
90
 10.2 8.2
84.5
 3.5 3
86.5
 3.15 5.3 47.7
95
 10.2 8.6
89.5
 3.5 3
91.5
 3.15 5.3 53
100
 10.2 9
94.5
 3.5 3
96.5
 3.15 5.3 56.6
110
 12.2 9.6
103
 3.5 4
106
 4.15 6 84
120
 14.2 10.2
113
 3.5 4
116
 4.15 6 89.7
130
 14.2 10.7
123
 4 4
126
 4.15 6 105
140
 14.2 11.2
133
 4 4
136
 4.15 6 115

Dimensions in mm - source DIN 983
Publication date04 - 2011Supersedes DIN 983: 09 - 1981

shaft diameter d1 nom

 Circlip Groove ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3)
a max
≈ b
d3 nom
 d4 min s nom
d2 nom
 m n min
16
 3.5
2.3
14.7
 1.7 1
15.2
 1.1 1.2 0.82
17
 3.6 2.3
15.7
 1.7 1
16.2
 1.1 1.2 0.93
18
 3.7
2.4
16.5
 2 1.2
17.0
 1.3 1.5 1.24
19
 3.7 2.5
17.5
 2 1.2
18
 1.3 1.5 1.35
20
 3.8 2.6
18.5
 2 1.2
19.0
 1.3 1.5 1.45
22
 4 2.8
20.5
 2 1.2
21.0
 1.3 1.5 1.77
23
 4.1 2.9
21.5
 2 1.2
22
 1.3 1.5 1.84
24
 4.2 3
22.2
 2 1.2
22.9
 1.3 1.7 1.98
25
 4.3 3
23.2
 2 1.2
23.9
 1.3 1.7 2.12
26
 4.4 3.1
24.2
 2 1.2
24.9
 1.3 1.7 2.18
28
 4.5 3.2
25.9
 2 1.5
26.6
 1.6 2.1 3.15
30
 4.7 3.5
27.9
 2 1.5
28.6
 1.6 2.1 3.65
32
 5 3.6
29.6
 2.5 1.5
30.3
 1.6 2.6 4
35
 5.2 3.9
32.2
 2.5 1.5
33.0
 1.6 3 4.38
38
 5.5 4.2
35.2
 2.5 1.75
36.0
 1.85 3 6.5
40
 7.2 4.4
36.5
 2.5 1.75
37.5
 1.85 3.8 7
42
 7.2 4.5
38.5
 2.5 1.75
39.5
 1.85 3.8 7.5
45
 7.2 4.7
41.5
 2.5 1.75
42.5
 1.85 3.8 8.5
47
 7.2 4.9
43.5
 2.5 1.75
44.5
 1.85 3.8 8.7
48
 7.2 5
44.5
 2.5 1.75
45.5
 1.85 3.8 8.9
50
 8.2 5.1
45.8
 2.5 2
47.0
 2.15 4.5 11.5
55
 8.2 5.4
50.8
 2.5 2
52.0
 2.15 4.5 13
57
 8.2 5.5
52.8
 2.5 2
54
 2.15 4.5 14
58
 8.2 5.6
53.8
 2.5 2
55
 2.15 4.5 14.3
60
 8.2 5.8
55.8
 2.5 2
57.0
 2.15 4.5 14.8
62
 8.2 6
57.8
 2.5 2
59
 2.15 4.5 15.9
65
 10.2 6.3
60.8
 3 2.5
62.0
 2.65 4.5 21.7
67
 10.2 6.4
62.5
 3 2.5
64
 2.65 4.5 22.6
68
 10.2 6.5
63.5
 3 2.5
65.0
 2.65 4.5 23.5
70
 10.2 6.6
65.5
 3 2.5
67.0
 2.65 4.5 25.1
75
 10.2 7
70.5
 3 2.5
72.0
 2.65 4.5 28.2
80
 10.2 7.4
74.5
 3 2.5
76.5
 2.65 5.3 30.8
85
 10.2 7.8
79.5
 3.5 3
81.5
 3.15 5.3 39.5
90
 10.2 8.2
84.5
 3.5 3
86.5
 3.15 5.3 47.7
95
 10.2 8.6
89.5
 3.5 3
91.5
 3.15 5.3 53
100
 10.2 9
94.5
 3.5 3
96.5
 3.15 5.3 56.6
110
 12.2 9.6
103
 3.5 4
106
 4.15 6 84
120
 14.2 10.2
113
 3.5 4
116
 4.15 6 89.7
130
 14.2 10.7
123
 4 4
126
 4.15 6 105
140
 14.2 11.2
133
 4 4
136
 4.15 6 115

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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