Retaining Rings (Circlips) are retaining rings manufactured to DIN 471 / DIN 472. This page lists the full dimensional range with the key specifications engineers need to select and specify them.
What Are Retaining Rings (Circlips)?
Retaining Rings (Circlips) are retaining rings defined by DIN 471 / DIN 472. They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Dimensions & Specifications (DIN 471 / DIN 472)
| Nominal diameter (mm) | Ring diameter d1 (mm) | Groove diameter d2 (mm) | Thickness s (mm) | Groove depth ref (mm) | Type / standard |
|---|---|---|---|---|---|
| 3 | 2.7 | 2.5 | 0.4 | 3.5 | DIN 471 external |
| 4 | 3.7 | 3.4 | 0.4 | 4.5 | DIN 471 external |
| 5 | 4.7 | 4.4 | 0.6 | 5.5 | DIN 471 external |
| 6 | 5.6 | 5.3 | 0.7 | 6.5 | DIN 471 external |
| 7 | 6.5 | 6.2 | 0.8 | 7.5 | DIN 471 external |
| 8 | 7.4 | 7.1 | 0.8 | 8.5 | DIN 471 external |
| 9 | 8.4 | 8.1 | 1.0 | 9.5 | DIN 471 external |
| 10 | 9.3 | 9.0 | 1.0 | 10.5 | DIN 471 external |
| 11 | 10.2 | 9.9 | 1.0 | 11.5 | DIN 471 external |
| 12 | 11.1 | 10.8 | 1.0 | 12.5 | DIN 471 external |
| 14 | 13.0 | 12.7 | 1.0 | 14.5 | DIN 471 external |
| 15 | 14.0 | 13.7 | 1.0 | 15.5 | DIN 471 external |
| 16 | 15.0 | 14.7 | 1.0 | 16.5 | DIN 471 external |
| 17 | 16.0 | 15.7 | 1.0 | 17.5 | DIN 471 external |
| 18 | 17.0 | 16.7 | 1.2 | 18.5 | DIN 471 external |
| 19 | 18.0 | 17.7 | 1.2 | 19.5 | DIN 471 external |
| 20 | 19.0 | 18.7 | 1.2 | 20.5 | DIN 471 external |
| 22 | 21.0 | 20.7 | 1.2 | 22.5 | DIN 471 external |
| 24 | 22.9 | 22.6 | 1.2 | 24.5 | DIN 471 external |
| 25 | 23.9 | 23.6 | 1.2 | 25.5 | DIN 471 external |
| 28 | 26.9 | 26.6 | 1.5 | 29.0 | DIN 471 external |
| 30 | 28.9 | 28.6 | 1.5 | 31.0 | DIN 471 external |
| 32 | 30.9 | 30.6 | 1.5 | 33.0 | DIN 471 external |
| 35 | 33.8 | 33.5 | 1.5 | 36.0 | DIN 471 external |
| 40 | 38.5 | 38.2 | 1.75 | 41.0 | DIN 471 external |
| 45 | 43.5 | 43.2 | 1.75 | 46.0 | DIN 471 external |
| 50 | 48.5 | 48.2 | 2.0 | 51.0 | DIN 471 external |
| 55 | 53.3 | 53.0 | 2.0 | 56.5 | DIN 471 external |
| 60 | 58.3 | 58.0 | 2.0 | 61.5 | DIN 471 external |
| 65 | 63.3 | 63.0 | 2.5 | 67.0 | DIN 471 external |
| 70 | 68.3 | 68.0 | 2.5 | 72.0 | DIN 471 external |
| 75 | 73.3 | 73.0 | 2.5 | 77.0 | DIN 471 external |
| 80 | 78.0 | 77.7 | 2.5 | 82.0 | DIN 471 external |
| 85 | 83.0 | 82.7 | 3.0 | 87.0 | DIN 471 external |
| 90 | 88.0 | 87.7 | 3.0 | 92.0 | DIN 471 external |
| 95 | 93.0 | 92.7 | 3.0 | 97.0 | DIN 471 external |
| 100 | 98.0 | 97.7 | 3.0 | 102.0 | DIN 471 external |
| 8 | 8.4 | 8.7 | 0.8 | 7.5 | DIN 472 internal |
| 9 | 9.4 | 9.7 | 1.0 | 8.5 | DIN 472 internal |
| 10 | 10.4 | 10.7 | 1.0 | 9.5 | DIN 472 internal |
| 11 | 11.4 | 11.7 | 1.0 | 10.4 | DIN 472 internal |
| 12 | 12.5 | 12.8 | 1.0 | 11.4 | DIN 472 internal |
| 13 | 13.5 | 13.8 | 1.0 | 12.4 | DIN 472 internal |
| 14 | 14.5 | 14.8 | 1.0 | 13.4 | DIN 472 internal |
| 15 | 15.5 | 15.8 | 1.0 | 14.3 | DIN 472 internal |
| 16 | 16.5 | 16.8 | 1.0 | 15.3 | DIN 472 internal |
| 17 | 17.5 | 17.8 | 1.0 | 16.3 | DIN 472 internal |
| 18 | 18.5 | 18.8 | 1.2 | 17.2 | DIN 472 internal |
| 19 | 19.5 | 19.8 | 1.2 | 18.2 | DIN 472 internal |
| 20 | 20.5 | 20.8 | 1.2 | 19.2 | DIN 472 internal |
| 22 | 22.5 | 22.9 | 1.2 | 21.2 | DIN 472 internal |
| 24 | 24.5 | 24.9 | 1.2 | 23.2 | DIN 472 internal |
| 25 | 25.5 | 25.9 | 1.2 | 24.2 | DIN 472 internal |
| 28 | 28.6 | 29.0 | 1.5 | 27.0 | DIN 472 internal |
| 30 | 30.6 | 31.0 | 1.5 | 29.0 | DIN 472 internal |
| 32 | 32.6 | 33.0 | 1.5 | 31.0 | DIN 472 internal |
| 35 | 35.7 | 36.1 | 1.5 | 34.0 | DIN 472 internal |
| 40 | 40.8 | 41.3 | 1.75 | 39.0 | DIN 472 internal |
| 45 | 45.8 | 46.3 | 1.75 | 44.0 | DIN 472 internal |
| 50 | 51.0 | 51.5 | 2.0 | 49.0 | DIN 472 internal |
| 55 | 56.0 | 56.5 | 2.0 | 54.0 | DIN 472 internal |
| 60 | 61.0 | 61.5 | 2.0 | 59.0 | DIN 472 internal |
| 65 | 66.2 | 66.8 | 2.5 | 64.0 | DIN 472 internal |
| 70 | 71.2 | 71.8 | 2.5 | 69.0 | DIN 472 internal |
| 75 | 76.2 | 76.8 | 2.5 | 74.0 | DIN 472 internal |
| 80 | 81.2 | 81.8 | 2.5 | 79.0 | DIN 472 internal |
| 85 | 86.5 | 87.1 | 3.0 | 84.0 | DIN 472 internal |
| 90 | 91.5 | 92.1 | 3.0 | 89.0 | DIN 472 internal |
| 95 | 96.5 | 97.1 | 3.0 | 94.0 | DIN 472 internal |
| 100 | 101.5 | 102.1 | 3.0 | 99.0 | DIN 472 internal |
Materials & Finishes
Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.
Typical Applications
Axial retention of bearings, gears and shafts in housings and on shafts.
Pricing
Retaining Rings (Circlips) are stocked and supplied to order. Pricing starts from approximately US$0.030 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Request a quotation below for your exact specification.
Request a Quotation for Retaining Rings (Circlips)
Tell us the size, material, finish and quantity you need for Retaining Rings (Circlips) (DIN 471 / DIN 472) and our team will respond within one business day.