Stainless Steel DIN471 Retaining Rings For Shafts
A flat washer with a particularly large outer diameter in proportion to its central hole. These are commonly used to spread the load on thin sheet metal, and are named after their use on automobile fenders.
Specification
| Nominal diameter | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
|
| s | Max |
| 0.4 | 0.4 | 0.6 | 0.7 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Min |
| 0.35 | 0.35 | 0.55 | 0.65 | 0.75 | 0.75 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 |
| d3 | Max |
| 2.74 | 3.74 | 4.74 | 5.64 | 6.56 | 7.46 | 8.46 | 9.4 | 10.3 | 11.1 | 12 | 13 | 13.9 | 14.8 | 15.8 |
| Min |
| 2.55 | 3.55 | 4.55 | 5.45 | 6.32 | 7.22 | 8.22 | 8.94 | 9.84 | 10.64 | 11.54 | 12.54 | 13.44 | 14.34 | 15.34 |
| d5 | Min |
| 1 | 1 | 1 | 1.2 | 1.2 | 1.2 | 1.2 | 1.5 | 1.5 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
| a | Max |
| 1.9 | 2.2 | 2.5 | 2.7 | 3.1 | 3.2 | 3.3 | 3.3 | 3.3 | 3.3 | 3.4 | 3.5 | 3.6 | 3.7 | 3.8 |
| n | ≈ |
| 0.8 | 0.9 | 1.1 | 1.3 | 1.4 | 1.5 | 1.7 | 1.8 | 1.8 | 1.8 | 2 | 2.1 | 2.2 | 2.2 | 2.3 |
| Thousand pieces of weight (steel)≈kg | 0.017 | 0.022 | 0.066 | 0.084 | 0.121 | 0.158 | 0.3 | 0.34 | 0.41 | 0.5 | 0.53 | 0.64 | 0.67 | 0.7 | 0.82 |
| Nominal diameter | 18 | 19 | 20 | 21 | 22 | 24 | 25 | 26 | 28 | 29 | 30 | 32 | 34 | 35 | 36 |
|
| s | Max |
| 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.75 |
| Min |
| 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | 1.14 | 1.44 | 1.44 | 1.44 | 1.44 | 1.44 | 1.44 | 1.69 |
| d3 | Max |
| 16.6 | 17.6 | 18.63 | 19.63 | 20.63 | 22.41 | 23.41 | 24.41 | 26.11 | 27.11 | 28.11 | 29.81 | 31.75 | 32.45 | 33.45 |
| Min |
| 16.14 | 17.14 | 18.08 | 19.08 | 20.08 | 21.78 | 22.78 | 23.78 | 25.48 | 26.48 | 27.48 | 29.18 | 31 | 31.7 | 32.7 |
| d5 | Min |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 | 2.5 |
| a | Max |
| 3.9 | 3.9 | 4 | 4.1 | 4.2 | 4.4 | 4.4 | 4.5 | 4.7 | 4.8 | 5 | 5.2 | 5.4 | 5.6 | 5.6 |
| n | ≈ |
| 2.4 | 2.5 | 2.6 | 2.7 | 2.8 | 3 | 3 | 3.1 | 3.2 | 3.4 | 3.5 | 3.6 | 3.8 | 3.9 | 4 |
| Thousand pieces of weight (steel)≈kg | 1.11 | 1.22 | 1.3 | 1.42 | 1.5 | 1.77 | 1.9 | 1.96 | 2.92 | 3.2 | 3.31 | 3.54 | 3.8 | 4 | 5 |
| Nominal diameter | 38 | 40 | 42 | 45 | 48 | 50 | 52 | 55 | 56 | 58 | 60 | 62 | 63 | 65 | 68 |
|
| s | Max |
| 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2.5 | 2.5 |
| Min |
| 1.69 | 1.69 | 1.69 | 1.69 | 1.69 | 1.93 | 1.93 | 1.93 | 1.93 | 1.93 | 1.93 | 1.93 | 1.93 | 2.43 | 2.43 |
| d3 | Max |
| 35.45 | 36.89 | 38.89 | 41.89 | 44.89 | 46.19 | 48.19 | 51.26 | 52.26 | 54.26 | 56.26 | 58.26 | 59.26 | 61.26 | 63.96 |
| Min |
| 34.7 | 35.6 | 37.6 | 40.6 | 43.6 | 44.9 | 46.9 | 49.7 | 50.7 | 52.7 | 54.7 | 56.7 | 57.7 | 59.7 | 62.4 |
| d5 | Min |
| 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 |
| a | Max |
| 5.8 | 6 | 6.5 | 6.7 | 6.9 | 6.9 | 7 | 7.2 | 7.3 | 7.3 | 7.4 | 7.5 | 7.6 | 7.8 | 8 |
| n | ≈ |
| 4.2 | 4.4 | 4.5 | 4.7 | 5 | 5.1 | 5.2 | 5.4 | 5.5 | 5.6 | 5.8 | 6 | 6.2 | 6.3 | 6.5 |
| Thousand pieces of weight (steel)≈kg | 5.62 | 6.03 | 6.5 | 7.5 | 7.9 | 10.2 | 11.1 | 11.4 | 11.8 | 12.6 | 12.9 | 14.3 | 15.9 | 18.2 | 21.8 |
| Nominal diameter | 70 | 72 | 75 | 78 | 80 | 82 | 85 | 88 | 90 | 95 | 100 | 105 | 110 | 115 | 120 |
|
| s | Max |
| 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 |
| Min |
| 2.43 | 2.43 | 2.43 | 2.43 | 2.43 | 2.43 | 2.92 | 2.92 | 2.92 | 2.92 | 2.92 | 3.9 | 3.9 | 3.9 | 3.9 |
| d3 | Max |
| 65.96 | 67.96 | 70.96 | 73.96 | 74.96 | 76.96 | 79.96 | 83.04 | 85.04 | 90.04 | 95.04 | 98.54 | 103.54 | 108.54 | 113.54 |
| Min |
| 64.4 | 66.4 | 69.4 | 72.4 | 73.4 | 75.4 | 78.4 | 81.2 | 83.2 | 88.2 | 93.2 | 96.7 | 101.7 | 106.7 | 111.7 |
| d5 | Min |
| 3 | 3 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| a | Max |
| 8.1 | 8.2 | 8.4 | 8.6 | 8.6 | 8.7 | 8.7 | 8.8 | 8.8 | 9.4 | 9.6 | 9.9 | 10.1 | 10.6 | 11 |
| n | ≈ |
| 6.6 | 6.8 | 7 | 7.3 | 7.4 | 7.6 | 7.8 | 8 | 8.2 | 8.6 | 9 | 9.3 | 9.6 | 9.8 | 10.2 |
| Thousand pieces of weight (steel)≈kg | 22 | 22.5 | 24.6 | 26.2 | 27.3 | 31.2 | 36.4 | 41.2 | 44.5 | 49 | 53.7 | 80 | 82 | 84 | 86 |
| Nominal diameter | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 175 | 180 | 185 | 190 | 195 |
|
| s | Max |
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Min |
| 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 |
| d3 | Max |
| 118.54 | 123.63 | 128.63 | 133.63 | 138.63 | 142.63 | 146.63 | 151.63 | 156.13 | 161.13 | 166.13 | 171.03 | 176.13 | 181.22 | 186.22 |
| Min |
| 116.7 | 121.5 | 126.5 | 131.5 | 136.5 | 140.5 | 144.5 | 149.5 | 154 | 159 | 164 | 168.9 | 174 | 178.8 | 183.8 |
| d5 | Min |
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| a | Max |
| 11.4 | 11.6 | 11.8 | 12 | 12.2 | 13 | 13 | 13.3 | 13.5 | 13.5 | 13.5 | 14.2 | 14.2 | 14.2 | 14.2 |
| n | ≈ |
| 10.4 | 10.7 | 11 | 11.2 | 11.5 | 11.8 | 12 | 12.2 | 12.5 | 12.9 | 12.9 | 13.5 | 13.5 | 14 | 14 |
| Thousand pieces of weight (steel)≈kg | 90 | 100 | 104 | 110 | 115 | 120 | 135 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 220 |
| Nominal diameter | 200 | 210 | 220 | 230 | 240 | 250 | 260 | 270 | 280 | 290 | 300 |
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| s | Max |
| 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Min |
| 3.9 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 | 4.88 |
| d3 | Max |
| 191.22 | 198.72 | 208.72 | 218.72 | 228.72 | 238.72 | 245.72 | 255.81 | 265.81 | 275.81 | 285.81 |
| Min |
| 188.8 | 196.3 | 206.3 | 216.3 | 226.3 | 236.3 | 243.3 | 253 | 263 | 273 | 283 |
| d5 | Min |
| 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 |
| a | Max |
| 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 16.2 | 16.2 | 16.2 | 16.2 | 16.2 |
| n | ≈ |
| 14 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 |
| Thousand pieces weight (steel)≈kg | 230 | 248 | 265 | 290 | 310 | 335 | 355 | 375 | 398 | 418 | 440 |
Material
| 304 Chemical Composition(%) |
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | N≤ |
| 0.08 | 2 | 0.75 | 0.03 | 0.045 | 18.0-20.0 | 8.0-10.5 | 0.1 |
| 304 Mechanical property |
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200 |
| 316 Chemical Composition(%) |
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | Cu | MO | N |
| 0.017 | 0.98 | 0.25 | 0.0016 | 0.0414 | 16.23 | 10.08 | 0.32 | 2.06 | 0.037 |
| 316 Mechanical property |
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200 |