Internal Retaining Rings (Imperial, Series 2000-5000)
Imperial internal retaining rings for bores, series 2000-5000 — stamped rings assembled axially into a groove machined inside a housing. Ring numbers 25 through 750 cover bore sizes 0.25 to 7.5 in the collected table, with per-size tolerances, thrust loads Fn/Fr/Frg, and plier-tool assignments per size band. Full per-size table below.
Last updated: 2026-11
Specifications
The imperial counterpart of the metric internal ring (the DIN 472 page covers that series): a thin stamped ring expanded with retaining-ring pliers and seated axially into a groove cut inside a housing or bore, where it retains a shaft, bearing or bushing against axial movement out of the housing. The collected table runs ring numbers 25 through 750 with the matching bore diameter d1 printed per row (ring 25 → 0.25, ring 500 → 5), and — like its external twin — prints the full tolerance set per size (plus tolerances inline, minus tolerances as a positional sequence after the row), the thrust-load columns Fn/Fr/Frg, and the plier tool per size band (J0/J01 upward). Where the joint puts the groove in the housing — a bearing retained in a blind housing, a bushing in a bored lug — this is the ring; where the groove is on the shaft, the external series above applies. The source’s own unit statement ("All measurements in millimeters (mm)" over the imperial programme) is preserved as printed.
| Series | Internal retaining rings for bores, imperial series 2000-5000; sizes by ring number 25-750 with bore diameter d1 0.25-7.5 printed per row |
|---|---|
| Ring section s | 0.015 (ring 25) to 0.187 (ring 750), per-size tolerance pairs in the table below |
| Groove diameter d3 | Per-size groove-in-bore diameter with printed tolerance pair (e.g. ring 50 → d3 .548 + .010 / – .005; ring 500 → 5.485 + .065 / – .065, minus tokens as printed) — the housing groove must land inside the band |
| Thrust loads Fn / Fr | Fn 190 (ring 25) to 108,100 (ring 750); Fr 426 to 201,173 — units as printed by the source |
| Tool assignment | Plier tools J0/J01 upward printed per size band; the smallest rings print "—" in the tool column — as printed |
| Units as printed | The collected page prints "All measurements in millimeters (mm)" over this imperial series; values are reproduced token-for-token with no conversion — confirm unit basis on the RFQ |
| MOQ / lead time | Not owner-confirmed for this family — confirmed at quotation |
| Ring n° | d1 (in) | s (in) | d3 (in) | a (in) | b (in) | c (in) | d5 (in) | d2 (in) | m (in) | n (in) | Fn | Fr | g (in) | Frg | lbs* (per 1000) | Tool |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 0.25 | 0.015 + .002 / – .002 | .280 + .010 / – .005 | 0.065 + .003 / – .003 | 0.025 + .002 / – .002 | 0.015 + .002 / – .002 | 0.031 + .010 / – .002 | 0.268 + .001 / -.001 | 0.02 + .002 / -.000 | 0.027 | 190 | 426 | 0.0085 | 190 | 0.053 | – / – |
| 31 | 0.312 | 0.015 + .002 / – .002 | .346 + .010 / – .005 | 0.091 + .004 / – .004 | 0.043 + .002 / – .002 | 0.026 + .002 / – .002 | 0.047 + .000 / – .006 | 0.33 + .001 / -.001 | 0.02 + .002 / -.000 | 0.027 | 240 | 538 | 0.013 | 190 | 0.132 | J0 / J01 |
| 37 | 0.375 | 0.025 + .002 / – .002 | .415 + .010 / – .005 | 0.082 + .003 / – .003 | 0.04 + .003 / – .003 | 0.028 + .003 / – .003 | 0.041 + .010 / – .002 | 0.397 + .002 / -.002 | 0.029 + .003 / -.000 | 0.033 | 350 | 1066 | 0.018 | 530 | 0.264 | J0 / J01 |
| 43 | 0.438 | 0.025 + .002 / – .002 | .482 + .010 / – .005 | 0.098 + .003 / – .003 | 0.049 + .003 / – .003 | 0.029 + .003 / – .003 | 0.041 + .010 / – .002 | 0.461 + .002 / -.002 | 0.029 + .003 / -.000 | 0.036 | 440 | 1238 | 0.021 | 530 | 0.374 | J0 / J01 |
| 45 | 0.453 | 0.025 + .002 / – .002 | .498 + .010 / – .005 | 0.098 + .003 / – .003 | 0.05 + .003 / – .003 | 0.03 + .003 / – .003 | 0.047 + .010 / – .002 | 0.477 + .002 / -.002 | 0.029 + .003 / -.000 | 0.036 | 460 | 1299 | 0.021 | 530 | 0.374 | J0 / J01 |
| 50 | 0.5 | 0.035 + .002 / – .002 | .548 + .010 / – .005 | 0.114 + .003 / – .003 | 0.053 + .004 / – .004 | 0.035 + .004 / – .004 | 0.047 + .010 / – .002 | 0.53 + .002 / -.002 | 0.039 + .003 / -.000 | 0.045 | 510 | 2010 | 0.021 | 1100 | 0.682 | J0 / J01 |
| 51 | 0.512 | 0.035 + .002 / – .002 | .560 + .010 / – .005 | 0.114 + .005 / – .005 | 0.053 + .004 / – .004 | 0.035 + .004 / – .004 | 0.047 + .010 / – .002 | 0.542 + .002 / -.002 | 0.039 + .003 / -.000 | 0.045 | 520 | 2060 | 0.021 | 1100 | 0.682 | J0 / J01 |
| 56 | 0.562 | 0.035 + .002 / – .002 | .620 + .010 / – .005 | 0.132 + .005 / – .005 | 0.053 + .004 / – .004 | 0.035 + .004 / – .004 | 0.047 + .010 / – .002 | 0.596 + .002 / -.002 | 0.039 + .003 / -.000 | 0.051 | 710 | 2253 | 0.021 | 1100 | 0.79 | J0 / J01 |
| 62 | 0.625 | 0.035 + .002 / – .002 | .694 + .010 / – .005 | 0.132 + .005 / – .005 | 0.06 + .004 / – .004 | 0.035 + .004 / – .004 | 0.062 + .010 / – .002 | 0.665 + .002 / -.002 | 0.039 + .003 / -.000 | 0.06 | 1050 | 2507 | 0.021 | 1100 | 1.03 | J1 / J11 |
| 68 | 0.688 | 0.035 + .002 / – .002 | .763 + .010 / – .005 | 0.132 + .005 / – .005 | 0.063 + .004 / – .004 | 0.036 + .004 / – .004 | 0.062 + .010 / – .002 | 0.732 + .002 / -.002 | 0.039 + .003 / -.000 | 0.066 | 1280 | 2741 | 0.021 | 1100 | 1.034 | J1 / J11 |
| 75 | 0.75 | 0.035 + .002 / – .002 | .831 + .010 / – .005 | 0.142 + .005 / – .005 | 0.07 + .004 / – .004 | 0.04 + .004 / – .004 | 0.062 + .010 / – .002 | 0.796 + .002 / -.002 | 0.039 + .003 / -.000 | 0.069 | 1460 | 3045 | 0.028 | 1100 | 1.296 | J1 / J11 |
| 77 | 0.777 | 0.042 + .002 / – .002 | .859 + .010 / – .005 | 0.146 + .005 / – .005 | 0.074 + .005 / – .005 | 0.044 + .005 / – .005 | 0.062 + .010 / – .002 | 0.825 + .003 / -.003 | 0.046 + .003 / -.000 | 0.072 | 1580 | 7618 | 0.028 | 1650 | 1.65 | J1 / J11 |
| 81 | 0.812 | 0.042 + .002 / – .002 | .901 + .015 / – .010 | 0.155 + .005 / – .005 | 0.077 + .005 / – .005 | 0.044 + .005 / – .005 | 0.062 + .010 / – .002 | 0.862 + .003 / -.003 | 0.046 + .003 / -.000 | 0.075 | 1710 | 4872 | 0.028 | 1650 | 1.771 | J1 / J11 |
| 86 | 0.866 | 0.042 + .002 / – .002 | .961 + .015 / – .010 | 0.155 + .005 / – .005 | 0.081 + .005 / – .005 | 0.045 + .005 / – .005 | 0.062 + .010 / – .002 | 0.92 + .003 / -.003 | 0.046 + .003 / -.000 | 0.081 | 1980 | 5177 | 0.028 | 1650 | 1.98 | J1 / J11 |
| 87 | 0.875 | 0.042 + .002 / – .002 | .971 + .015 / – .010 | 0.155 + .005 / – .005 | 0.084 + .005 / – .005 | 0.045 + .005 / – .005 | 0.062 .+ .010 / – .002 | 0.931 + .003 / -.003 | 0.046 + .003 / -.000 | 0.084 | 2080 | 5227 | 0.028 | 1650 | 1.991 | J1 / J11 |
| 90 | 0.901 | 0.042 + .002 / – .002 | 1.000 + .015 / – .010 | 0.155 + .005 / – .005 | 0.087 + .005 / – .005 | 0.047 + .005 / – .005 | 0.062 + .010 / – .002 | 0.959 + .003 / -.003 | 0.046 + .003 / -.000 | 0.087 | 2200 | 5430 | 0.03 | 1650 | 2.156 | J1 / J11 |
| 93 | 0.938 | 0.042 + .002 / – .002 | 1.041 + .015 / – .010 | 0.155 + .005 / – .005 | 0.091 + .005 / – .005 | 0.05 + .005 / – .005 | 0.062 + .010 / – .002 | 1 + .003 / -.003 | 0.046 + .003 / -.000 | 0.093 | 2450 | 5684 | 0.03 | 1650 | 2.354 | J1 / J11 |
| 100 | 1 | 0.042 + .002 / – .002 | 1.111 + .015 / – .010 | 0.155 + .005 / – .005 | 0.104 + .005 / – .005 | 0.052 + .005 / – .005 | 0.062 + .010 / – .002 | 1.066 + .003 / -.003 | 0.046 + .003 / -.000 | 0.099 | 2800 | 6039 | 0.034 | 1650 | 2.706 | J1 / J11 |
| 102 | 1.023 | 0.042 + .002 / – .002 | 1.136 + .015 / – .010 | 0.155 + .005 / – .005 | 0.106 + .005 / – .005 | 0.054 + .005 / – .005 | 0.062 + .010 / – .002 | 1.091 + .003 / -.003 | 0.046 + .003 / -.000 | 0.102 | 3000 | 6141 | 0.034 | 1650 | 2.838 | J1 / J11 |
| 106 | 1.062 | 0.05 + .002 / – .002 | 1.180 + .025 / – .020 | 0.18 + .005 / – .005 | 0.11 + .006 / – .006 | 0.055 + .006 / – .006 | 0.078 + .015 / – .002 | 1.13 + .004 / -.004 | 0.056 + .004 / -.000 | 0.102 | 3050 | 7562 | 0.035 | 2400 | 3.696 | J2 / J21 |
| 112 | 1.125 | 0.05 + .002 / – .002 | 1.249 + .025 / – .020 | 0.18 + .005 / – .005 | 0.116 + .006 / – .006 | 0.057 + .006 / – .006 | 0.078 + .015 / – .002 | 1.197 + .004 / -.004 | 0.056 + .004 / -.000 | 0.108 | 3400 | 8019 | 0.036 | 2400 | 4.07 | J2 / J21 |
| 118 | 1.181 | 0.05 + .002 / – .002 | 1.319 + .025 / – .020 | 0.18 + .005 / – .005 | 0.12 + .006 / – .006 | 0.058 + .006 / – .006 | 0.078 + .015 / – .002 | 1.255 + .004 / -.004 | 0.056 + .004 / -.000 | 0.111 | 3700 | 8526 | 0.036 | 2400 | 4.367 | J2 / J21 |
| 118 | 1.188 | 0.05 + .002 / – .002 | 1.319 + .025 / – .020 | 0.18 + .005 / – .005 | 0.12 + .006 / – .006 | 0.058 + .006 / – .006 | 0.078 + .015 / – .002 | 1.262 + .004 / -.004 | 0.056 + .004 / -.000 | 0.111 | 3700 | 8526 | 0.036 | 2400 | 4.367 | J2 / J21 |
| 125 | 1.25 | 0.05 + .002 / – .002 | 1.388 + .025 / – .020 | 0.18 + .005 / – .005 | 0.124 + .006 / – .006 | 0.062 + .006 / – .006 | 0.078 + .015 / – .002 | 1.33 + .004 / -.004 | 0.056 + .004 / -.000 | 0.12 | 4250 | 8932 | 0.038 | 2400 | 4.774 | J2 / J21 |
| 125 | 1.259 | 0.05 + .002 / – .002 | 1.388 + .025 / – .020 | 0.18 + .005 / – .005 | 0.124 + .006 / – .006 | 0.062 + .006 / – .006 | 0.078 + .015 / – .002 | 1.339 + .004 / -.004 | 0.056 + .004 / -.000 | 0.12 | 4250 | 8932 | 0.038 | 2400 | 4.774 | J2 / J21 |
| 131 | 1.312 | 0.05 + .002 / – .002 | 1.456 + .025 / – .020 | 0.201 + .006 / – .006 | 0.13 + .006 / – .006 | 0.062 + .006 / – .006 | 0.078 + .015 / – .002 | 1.396 + .004 / -.004 | 0.056 + .004 / -.000 | 0.126 | 4700 | 9440 | 0.038 | 2400 | 5.918 | J2 / J21 |
| 137 | 1.375 | 0.05 + .002 / – .002 | 1.526 + .025 / – .020 | 0.201 + .006 / – .006 | 0.13 + .006 / – .006 | 0.063 + .006 / – .006 | 0.078 + .015 / – .002 | 1.461 + .004 / -.004 | 0.056 + .004 / -.000 | 0.129 | 5050 | 9846 | 0.038 | 2400 | 5.837 | J2 / J21 |
| 137 | 1.378 | 0.05 + .002 / – .002 | 1.526 + .025 / – .020 | 0.201 + .006 / – .006 | 0.13 + .006 / – .006 | 0.063 + .006 / – .006 | 0.078 + .015 / – .002 | 1.464 + .004 / -.004 | 0.056 + .004 / -.000 | 0.129 | 5050 | 9846 | 0.038 | 2400 | 5.837 | J2 / J21 |
| 143 | 1.438 | 0.05 + .002 / – .002 | 1.596 + .025 / – .020 | 0.201 + .006 / – .006 | 0.133 + .006 / – .006 | 0.065 + .006 / – .006 | 0.078 + .015 / – .002 | 1.528 + .004 / -.004 | 0.056 + .004 / -.000 | 0.135 | 5500 | 10353 | 0.038 | 2400 | 6.664 | J2 / J21 |
| 145 | 1.456 | 0.05 + .002 / – .002 | 1.616 + .025 / – .020 | 0.201 + .006 / – .006 | 0.133 + .006 / – .006 | 0.065 + .006 / – .006 | 0.078 + .015 / – .002 | 1.548 + .004 / -.004 | 0.056 + .004 / -.000 | 0.138 | 5700 | 10455 | 0.038 | 2400 | 6.93 | J2 / J21 |
| 150 | 1.5 | 0.05 + .002 / – .002 | 1.660 + .025 / – .020 | 0.201 + .006 / – .006 | 0.133 + .006 / – .006 | 0.066 + .006 / – .006 | 0.078 + .015 / – .002 | 1.594 + .004 / -.004 | 0.056 + .004 / -.000 | 0.141 | 6000 | 10708 | 0.038 | 2400 | 6.417 | J2 / J21 |
| 156 | 1.562 | 0.062 + .003 / – .003 | 1.734 + .035 / – .025 | 0.213 + .006 / – .006 | 0.157 + .007 / – .007 | 0.078 + .007 / – .007 | 0.078 + .015 / – .002 | 1.658 + .005 / -.005 | 0.068 + .004 / -.000 | 0.144 | 6350 | 13906 | 0.05 | 3900 | 9.372 | J2 / J21 |
| 156 | 1.575 | 0.062 + .003 / – .003 | 1.734 + .035 / – .025 | 0.213 + .006 / – .006 | 0.157 + .007 / – .007 | 0.078 + .007 / – .007 | 0.078 + .015 / – .002 | 1.671 + .005 / -.005 | 0.068 + .004 / -.000 | 0.144 | 6350 | 13906 | 0.05 | 3900 | 9.372 | J2 / J21 |
| 162 | 1.625 | 0.062 + .003 / – .003 | 1.804 + .035 / – .025 | 0.213 + .006 / – .006 | 0.164 + .007 / – .007 | 0.082 + .007 / – .007 | 0.078 + .015 / – .002 | 1.725 + .005 / -.005 | 0.068 + .004 / -.000 | 0.15 | 6900 | 14413 | 0.05 | 3900 | 10.01 | J2 / J21 |
| 165 | 1.653 | 0.062 + .003 / – .003 | 1.835 + .035 / – .025 | 0.213 + .006 / – .006 | 0.167 + .007 / – .007 | 0.083 + .007 / – .007 | 0.078 + .015 / – .002 | 1.755 + .005 / -.005 | 0.068 + .004 / -.000 | 0.153 | 7200 | 14718 | 0.05 | 3900 | 10.406 | J2 / J21 |
| 168 | 1.688 | 0.062 + .003 / – .003 | 1.874 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.085 + .007 / – .007 | 0.078 + .015 / – .002 | 1.792 + .005 / -.005 | 0.068 + .004 / -.000 | 0.156 | 7450 | 15022 | 0.05 | 3900 | 11.143 | J2 / J21 |
| 175 | 1.75 | 0.062 + .003 / – .003 | 1.942 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.083 + .007 / – .007 | 0.078 + .015 / – .002 | 1.858 + .005 / -.005 | 0.068 + .004 / -.000 | 0.162 | 8050 | 15580 | 0.05 | 3900 | 11.658 | J2 / J21 |
| 181 | 1.812 | 0.062 + .003 / – .003 | 2.012 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.084 + .007 / – .007 | 0.093 + .015 / – .002 | 1.922 + .005 / -.005 | 0.068 + .004 / -.000 | 0.165 | 8450 | 16139 | 0.05 | 3900 | 11.948 | J2 / J21 |
| 185 | 1.85 | 0.062 + .003 / – .003 | 2.054 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.085 + .007 / – .007 | 0.093 + .015 / – .002 | 1.962 + .005 / -.005 | 0.068 + .004 / -.000 | 0.168 | 8750 | 16443 | 0.05 | 3900 | 12.298 | J2 / J21 |
| 187 | 1.875 | 0.062 + .003 / – .003 | 2.072 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.085 + .007 / – .007 | 0.093 + .015 / – .002 | 1.989 + .005 / -.005 | 0.068 + .004 / -.000 | 0.171 | 9050 | 16697 | 0.05 | 3900 | 12.822 | J2 / J21 |
| 193 | 1.938 | 0.062 + .003 / – .003 | 2.141 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.085 + .007 / – .007 | 0.093 + .015 / – .002 | 2.056 + .005 / -.005 | 0.068 + .004 / -.000 | 0.177 | 9700 | 17255 | 0.05 | 3900 | 12.89 | J2 / J21 |
| 200 | 2 | 0.062 + .003 / – .003 | 2.210 + .035 / – .025 | 0.213 + .006 / – .006 | 0.17 + .007 / – .007 | 0.085 + .007 / – .007 | 0.093 + .015 / – .002 | 2.122 + .005 / -.005 | 0.068 + .004 / -.000 | 0.183 | 10300 | 17763 | 0.05 | 3900 | 13.376 | J2 / J21 |
| 206 | 2.047 | 0.078 + .003 / – .003 | 2.280 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.091 + .007 / – .007 | 0.093 + .015 / – .002 | 2.171 + .006 / -.006 | 0.086 + .005 / -.000 | 0.186 | 10850 | 23091 | 0.061 | 6200 | 19.294 | J2 / J21 |
| 206 | 2.062 | 0.078 + .003 / – .003 | 2.280 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.091 + .007 / – .007 | 0.093 + .015 / – .002 | 2.186 + .006 / -.006 | 0.086 + .005 / -.000 | 0.186 | 10850 | 23091 | 0.062 | 6200 | 19.294 | J2 / J21 |
| 212 | 2.125 | 0.078 + .003 / – .003 | 2.350 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.096 + .007 / – .007 | 0.093 + .015 / – .002 | 2.251 + .006 / -.006 | 0.086 + .005 / -.000 | 0.189 | 11350 | 23751 | 0.062 | 6200 | 19.25 | J2 / J21 |
| 218 | 2.165 | 0.078 + .003 / – .003 | 2.415 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.098 + .007 / – .007 | 0.093 + .015 / – .002 | 2.295 + .006 / -.006 | 0.086 + .005 / -.000 | 0.195 | 12050 | 24461 | 0.062 | 6200 | 20.548 | J2 / J21 |
| 218 | 2.188 | 0.078 + .003 / – .003 | 2.415 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.098 + .007 / – .007 | 0.093 + .015 / – .002 | 2.318 + .006 / -.006 | 0.086 + .005 / -.000 | 0.195 | 12050 | 24461 | 0.062 | 6200 | 20.548 | J2 / J21 |
| 225 | 2.25 | 0.078 + .003 / – .003 | 2.490 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.099 + .007 / – .007 | 0.093 + .015 / – .002 | 2.382 + .006 / -.006 | 0.086 + .005 / -.000 | 0.198 | 12600 | 25223 | 0.062 | 6200 | 20.35 | J2 / J21 |
| 231 | 2.312 | 0.078 + .003 / – .003 | 2.560 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.1 + .007 / – .007 | 0.093 + .015 / – .002 | 2.45 + .006 / -.006 | 0.086 + .005 / -.000 | 0.207 | 13550 | 25832 | 0.062 | 6200 | 22.352 | J2 / J21 |
| 237 | 2.375 | 0.078 + .003 / – .003 | 2.630 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.102 + .007 / – .007 | 0.093 + .015 / – .002 | 2.517 + .006 / -.006 | 0.086 + .005 / -.000 | 0.213 | 14300 | 26542 | 0.062 | 6200 | 23.738 | J2 / J21 |
| 244 | 2.44 | 0.078 + .003 / – .003 | 2.702 + .040 / – .030 | 0.228 + .006 / – .006 | 0.228 + .006 / – .006 | 0.103 + .007 / – .007 | 0.11 + .015 / – .002 | 2.584 + .006 / -.006 | 0.086 + .005 / -.000 | 0.216 | 14900 | 27304 | 0.062 | 6200 | 24.684 | J3 / J31 |
| 250 | 2.5 | 0.078 + .003 / – .003 | 2.775 + .040 / – .030 | 0.248 + .006 / – .006 | 0.248 + .006 / – .006 | 0.114 + .012 / – .000 | 0.128 + .000 / – .008 | 2.648 + .006 / -.006 | 0.086 + .005 / -.000 | 0.222 | 15650 | 28014 | 0.062 | 6200 | 30.749 | J3 / J31 |
| 250 | 2.531 | 0.078 + .003 / – .003 | 2.775 + .040 / – .030 | 0.248 + .006 / – .006 | 0.248 + .006 / – .006 | 0.114 + .012 / – .000 | 0.128 + .000 / – .008 | 2.681 + .006 / -.006 | 0.086 + .005 / -.000 | 0.225 | 15650 | 28014 | 0.062 | 6200 | 30.749 | J3 / J31 |
| 256 | 2.562 | 0.093 + .003 / – .003 | 2.844 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.109 + .007 / – .007 | 0.11 + .015 / – .002 | 2.714 + .006 / -.006 | 0.103 + .005 / -.000 | 0.228 | 16500 | 34206 | 0.07 | 9000 | 34.122 | J3 / J31 |
| 262 | 2.625 | 0.093 + .003 / – .003 | 2.910 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.111 + .007 / – .007 | 0.11 + .015 / – .002 | 2.781 + .006 / -.006 | 0.103 + .005 / -.000 | 0.234 | 17350 | 35068 | 0.07 | 9000 | 34.454 | J3 / J31 |
| 268 | 2.677 | 0.093 + .003 / – .003 | 2.980 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.113 + .007 / – .007 | 0.11 + .015 / – .002 | 2.837 + .006 / -.006 | 0.103 + .005 / -.000 | 0.24 | 18250 | 35931 | 0.072 | 9000 | 38.898 | J3 / J31 |
| 268 | 2.688 | 0.093 + .003 / – .003 | 2.980 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.113 + .007 / – .007 | 0.11 + .015 / – .002 | 2.848 + .006 / -.006 | 0.103 + .005 / -.000 | 0.24 | 18250 | 35931 | 0.072 | 9000 | 38.898 | J3 / J31 |
| 275 | 2.75 | 0.093 + .003 / – .003 | 3.050 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.115 + .007 / – .007 | 0.11 + .015 / – .002 | 2.914 + .006 / -.006 | 0.103 + .005 / -.000 | 0.246 | 19200 | 36642 | 0.074 | 9000 | 38.474 | J3 / J31 |
| 281 | 2.812 | 0.093 + .003 / – .003 | 3.121 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.115 + .007 / – .007 | 0.11 + .015 / – .002 | 2.98 + .006 / -.006 | 0.103 + .005 / -.000 | 0.252 | 20050 | 37504 | 0.07 | 9000 | 39.734 | J3 / J31 |
| 281 | 2.835 | 0.093 + .003 / – .003 | 3.121 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.115 + .007 / – .007 | 0.11 + .015 / – .002 | 3.006 + .006 / -.006 | 0.103 + .005 / -.000 | 0.255 | 20050 | 37504 | 0.07 | 9000 | 39.734 | J3 / J31 |
| 287 | 2.875 | 0.093 + .003 / – .003 | 3.191 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.12 + .007 / – .007 | 0.11 + .015 / – .002 | 3.051 + .006 / -.006 | 0.103 + .005 / -.000 | 0.264 | 21500 | 38367 | 0.074 | 9000 | 42.986 | J3 / J31 |
| 300 | 2.953 | 0.093 + .003 / – .003 | 3.325 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.122 + .007 / – .007 | 0.11 + .015 / – .002 | 3.135 + .006 / -.006 | 0.103 + .005 / -.000 | 0.273 | 23150 | 40093 | 0.074 | 9000 | 44.095 | J3 / J31 |
| 300 | 3 | 0.093 + .003 / – .003 | 3.325 + .040 / – .030 | 0.26 + .006 / – .006 | 0.26 + .006 / – .006 | 0.122 + .007 / – .007 | 0.11 + .015 / – .002 | 3.182 + .006 / -.006 | 0.103 + .005 / -.000 | 0.273 | 23150 | 40093 | 0.074 | 9000 | 44.095 | J3 / J31 |
| 306 | 3.062 | 0.109 + .003 / – .003 | 3.418 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.126 + .008 / – .008 | 0.125 + .015 / – .002 | 3.248 + .006 / -.006 | 0.12 + .005 / -.000 | 0.279 | 24100 | 47807 | 0.078 | 12000 | 60.5 | J3 / J31 |
| 312 | 3.125 | 0.109 + .003 / – .003 | 3.488 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.129 + .008 / – .008 | 0.125 + .015 / – .002 | 3.315 + .006 / -.006 | 0.12 + .005 / -.000 | 0.285 | 25200 | 48822 | 0.079 | 12000 | 64.46 | J3 / J31 |
| 315 | 3.149 | 0.109 + .003 / – .003 | 3.523 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.129 + .008 / – .008 | 0.125 + .015 / – .002 | 3.341 + .006 / -.006 | 0.12 + .005 / -.000 | 0.288 | 25700 | 49329 | 0.08 | 12000 | 64.649 | J3 / J31 |
| 315 | 3.156 | 0.109 + .003 / – .003 | 3.523 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.129 + .008 / – .008 | 0.125 + .015 / – .002 | 3.348 + .006 / -.006 | 0.12 + .005 / -.000 | 0.288 | 25700 | 49329 | 0.08 | 12000 | 64.649 | J3 / J31 |
| 325 | 3.25 | 0.109 + .003 / – .003 | 3.623 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.135 + .008 / – .008 | 0.125 + .015 / – .002 | 3.446 + .006 / -.006 | 0.12 + .005 / -.000 | 0.294 | 27000 | 50750 | 0.083 | 12000 | 66.469 | J3 / J31 |
| 334 | 3.346 | 0.109 + .003 / – .003 | 3.734 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.14 + .008 / – .008 | 0.125 + .015 / – .002 | 3.546 + .006 / -.006 | 0.12 + .005 / -.000 | 0.3 | 28300 | 52374 | 0.086 | 12000 | 67.628 | J3 / J31 |
| 347 | 3.469 | 0.109 + .003 / – .003 | 3.857 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.144 + .008 / – .008 | 0.125 + .015 / – .002 | 3.675 + .006 / -.006 | 0.12 + .005 / -.000 | 0.309 | 30200 | 54201 | 0.086 | 12000 | 69.058 | J3 / J31 |
| 350 | 3.5 | 0.109 + .003 / – .003 | 3.890 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.142 + .008 / – .008 | 0.125 + .015 / – .002 | 3.71 + .006 / -.006 | 0.12 + .005 / -.000 | 0.315 | 31200 | 54709 | 0.088 | 12000 | 69.953 | J3 / J31 |
| 354 | 3.543 | 0.109 + .003 / – .003 | 3.936 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.142 + .008 / – .008 | 0.125 + .015 / – .002 | 3.755 + .006 / -.006 | 0.12 + .005 / -.000 | 0.318 | 31800 | 55419 | 0.088 | 12000 | 70.62 | J3 / J31 |
| 354 | 3.562 | 0.109 + .003 / – .003 | 3.936 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.142 + .008 / – .008 | 0.125 + .015 / – .002 | 3.776 + .006 / -.006 | 0.12 + .005 / -.000 | 0.321 | 31800 | 55419 | 0.088 | 12000 | 70.62 | J3 / J31 |
| 362 | 3.625 | 0.109 + .003 / – .003 | 4.024 + .055 / – .055 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.15 + .008 / – .008 | 0.125 + .015 / – .002 | 3.841 + .006 / -.006 | 0.12 + .005 / -.000 | 0.324 | 33200 | 56739 | 0.093 | 12000 | 75.79 | J3 / J31 |
| 375 | 3.74 | 0.109 + .003 / – .003 | 4.157 + .065 / – .065 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.155 + .008 / – .008 | 0.125 + .015 / – .002 | 3.964 + .006 / -.006 | 0.12 + .005 / -.000 | 0.336 | 35600 | 58566 | 0.096 | 12000 | 78.188 | J3 / J31 |
| 375 | 3.75 | 0.109 + .003 / – .003 | 4.157 + .065 / – .065 | 0.315 + .008 / – .008 | 0.315 + .008 / – .008 | 0.155 + .008 / – .008 | 0.125 + .015 / – .002 | 3.974 + .006 / -.006 | 0.12 + .005 / -.000 | 0.336 | 35600 | 58566 | 0.096 | 12000 | 78.188 | J3 / J31 |
| 387 | 3.875 | 0.109 + .003 / – .003 | 4.291 + .065 / – .065 | 0.331 + .012 / – .012 | 0.331 + .012 / – .012 | 0.16 + .008 / – .008 | 0.125 + .015 / – .002 | 4.107 + .006 / -.006 | 0.12 + .005 / -.000 | 0.348 | 38000 | 60494 | 0.098 | 12000 | 89.408 | J3 / J31 |
| 393 | 3.938 | 0.109 + .003 / – .003 | 4.358 + .065 / – .065 | 0.331 + .012 / – .012 | 0.331 + .012 / – .012 | 0.161 + .008 / – .008 | 0.125 + .015 / – .002 | 4.174 + .006 / -.006 | 0.12 + .005 / -.000 | 0.354 | 39300 | 61611 | 0.099 | 12000 | 88.44 | J3 / J31 |
| 400 | 4 | 0.109 + .003 / – .003 | 4.424 + .065 / – .065 | 0.331 + .012 / – .012 | 0.331 + .012 / – .012 | 0.166 + .008 / – .008 | 0.125 + .015 / – .002 | 4.24 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 40700 | 62626 | 0.102 | 12000 | 91.564 | J3 / J31 |
| 412 | 4.125 | 0.109 + .003 / – .003 | 4.558 + .065 / – .065 | 0.331 + .012 / – .012 | 0.331 + .012 / – .012 | 0.171 + .009 / – .009 | 0.125 + .015 / – .002 | 4.365 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 42000 | 64554 | 0.104 | 12000 | 95.04 | J3 / J31 |
| 425 | 4.25 | 0.109 + .003 / – .003 | 4.691 + .065 / – .065 | 0.331 + .012 / – .012 | 0.331 + .012 / – .012 | 0.18 + .009 / – .009 | 0.125 + .015 / – .002 | 4.49 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 43200 | 66483 | 0.11 | 12000 | 99.946 | J3 / J31 |
| 433 | 4.331 | 0.109 + .003 / – .003 | 4.756 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.18 + .009 / – .009 | 0.156 + .020 / – .005 | 4.571 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 44500 | 67599 | 0.114 | 12000 | 104.698 | J4 / J41 |
| 450 | 4.5 | 0.109 + .003 / – .003 | 4.940 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.181 + .009 / – .009 | 0.156 + .020 / – .005 | 4.74 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 45800 | 70340 | 0.117 | 12000 | 108.592 | J4 / J41 |
| 462 | 4.625 | 0.109 + .003 / – .003 | 5.076 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.183 + .009 / – .009 | 0.156 + .020 / – .005 | 4.865 + .006 / -.006 | 0.12 + .005 / -.000 | 0.36 | 47000 | 72370 | 0.121 | 12000 | 121 | J4 / J41 |
| 475 | 4.724 | 0.109 + .003 / – .003 | 5.213 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.183 + .009 / – .009 | 0.156 + .020 / – .005 | 4.969 + .006 / -.006 | 0.12 + .005 / -.000 | 0.366 | 49000 | 74298 | 0.123 | 12000 | 120.604 | J4 / J41 |
| 475 | 4.75 | 0.109 + .003 / – .003 | 5.213 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.183 + .009 / – .009 | 0.156 + .020 / – .005 | 4.995 + .006 / -.006 | 0.12 + .005 / -.000 | 0.366 | 49000 | 74298 | 0.123 | 12000 | 120.604 | J4 / J41 |
| 500 | 5 | 0.109 + .003 / – .003 | 5.485 + .065 / – .065 | 0.366 + .012 / – .012 | 0.366 + .012 / – .012 | 0.186 + .009 / – .009 | 0.156 + .020 / – .005 | 5.26 + .006 / -.006 | 0.12 + .005 / -.000 | 0.39 | 55000 | 78155 | 0.126 | 12000 | 128.128 | J4 / J41 |
| 525 | 5.25 | 0.125 + .004 / – .004 | 5.770 + .065 / – .065 | 0.378 + .012 / – .012 | 0.378 + .012 / – .012 | 0.198 + .009 / – .009 | 0.156 + .020 / – .005 | 5.52 + .007 / -.007 | 0.139 + .006 / -.000 | 0.405 | 60000 | 94091 | 0.134 | 15000 | 162.778 | J4 / J41 |
| 537 | 5.375 | 0.125 + .004 / – .004 | 5.910 + .065 / – .065 | 0.378 + .012 / – .012 | 0.378 + .012 / – .012 | 0.198 + .009 / – .009 | 0.156 + .020 / – .005 | 5.65 + .007 / -.007 | 0.139 + .006 / -.000 | 0.405 | 61500 | 96324 | 0.134 | 15000 | 167.398 | J4 / J41 |
| 550 | 5.5 | 0.125 + .004 / – .004 | 6.066 + .065 / – .065 | 0.378 + .012 / – .012 | 0.378 + .012 / – .012 | 0.198 + .009 / – .009 | 0.156 + .020 / – .005 | 5.77 + .007 / -.007 | 0.139 + .006 / -.000 | 0.405 | 63300 | 98658 | 0.134 | 15000 | 172.37 | J4 / J41 |
| 575 | 5.75 | 0.125 + .004 / – .004 | 6.336 + .065 / – .065 | 0.378 + .012 / – .012 | 0.378 + .012 / – .012 | 0.198 + .009 / – .009 | 0.156 + .020 / – .005 | 6.02 + .007 / -.007 | 0.139 + .006 / -.000 | 0.405 | 65900 | 103124 | 0.134 | 15000 | 177.474 | J4 / J41 |
| 600 | 6 | 0.125 + .004 / – .004 | 6.620 + .065 / – .065 | 0.378 + .012 / – .012 | 0.378 + .012 / – .012 | 0.198 + .009 / – .009 | 0.156 + .020 / – .005 | 6.27 + .007 / -.007 | 0.139 + .006 / -.000 | 0.405 | 68600 | 107489 | 0.134 | 15000 | 188.276 | J4 / J41 |
| 625 | 6.25 | 0.156 + .005 / – .005 | 6.895 + .080 / – .080 | 0.472 + .012 / – .012 | 0.472 + .012 / – .012 | 0.211 + .009 / – .009 | 0.187 + .020 / – .005 | 6.53 + .008 / -.008 | 0.174 + .008 / -.000 | 0.42 | 741000 | 139766 | 0.142 | 23000 | 303.6 | J5 / J51 |
| 650 | 6.5 | 0.156 + .005 / – .005 | 7.170 + .080 / – .080 | 0.472 + .012 / – .012 | 0.472 + .012 / – .012 | 0.219 + .009 / – .009 | 0.187 + .020 / – .005 | 6.79 + .008 / -.008 | 0.174 + .008 / -.000 | 0.435 | 79900 | 145450 | 0.145 | 23000 | 319 | J5 / J51 |
| 662 | 6.625 | 0.156 + .005 / – .005 | 7.308 + .080 / – .080 | 0.531 + .012 / – .012 | 0.531 + .012 / – .012 | 0.221 + .009 / – .009 | 0.187 + .020 / – .005 | 6.925 + .008 / -.008 | 0.174 + .008 / -.000 | 0.45 | 84200 | 148190 | 0.146 | 23000 | 340.56 | J5 / J51 |
| 675 | 6.75 | 0.156 + .005 / – .005 | 7.445 + .080 / – .080 | 0.531 + .012 / – .012 | 0.531 + .012 / – .012 | 0.224 + .009 / – .009 | 0.187 + .020 / – .005 | 7.055 + .008 / -.008 | 0.174 + .008 / -.000 | 0.456 | 87000 | 151032 | 0.15 | 23000 | 355.388 | J5 / J51 |
| 700 | 7 | 0.156 + .005 / – .005 | 7.720 + .080 / – .080 | 0.531 + .012 / – .012 | 0.531 + .012 / – .012 | 0.232 + .009 / – .009 | 0.187 + .020 / – .005 | 7.315 + .008 / -.008 | 0.174 + .008 / -.000 | 0.471 | 93100 | 156615 | 0.157 | 23000 | 376.64 | J5 / J51 |
| 725 | 7.25 | 0.187 + .005 / – .005 | 7.995 + .090 / – .090 | 0.551 + .012 / – .012 | 0.551 + .012 / – .012 | 0.238 + .010 / – .010 | 0.187 + .020 / – .005 | 7.575 + .008 / -.008 | 0.209 + .008 / -.000 | 0.486 | 99600 | 194373 | 0.162 | 34000 | 490.6 | J5 / J51 |
| 750 | 7.5 | 0.187 + .005 / – .005 | 8.270 + .090 / – .090 | 0.551 + .012 / – .012 | 0.551 + .012 / – .012 | 0.247 + .010 / – .010 | 0.187 + .020 / – .005 | 7.84 + .008 / -.008 | 0.209 + .008 / -.000 | 0.51 | 108100 | 201173 | 0.166 | 34000 | 508.2 | J5 / J51 |
- Row 1 (25): The collected page states "All measurements in millimeters (mm)" over an imperial series rendered here exactly as printed (no conversion). Loads Fn/Fr/Frg are in the units printed by the source; lbs* is footnoted "per 1000 pieces".
- Row 1 (25): The internal table's Tool column prints "– / –" (em dash pair) for the smallest rings; reproduced as printed.
- Row 15 (87): Ring 87 prints its c plus-tolerance as ".+ .010" (stray dot before the plus); transcribed as printed.
Materials
- Material per RFQ — the collected specification table covers geometry and load figures only
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (Internal Retaining Rings (Imperial, Series 2000-5000)) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantities and lead times for this family are confirmed at quotation — send your sizes, grades and quantities on the RFQ and the quote will carry a firm schedule. Sample availability is confirmed with the quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
Internal or external retaining ring — how does the joint decide?
By where the groove is machined. A housing-bore groove takes the internal ring: the ring is expanded into the groove and holds the assembly from sliding out of the housing — the classic case is retaining a bearing in a blind housing where a shoulder would be unreachable. A shaft groove takes the external ring: the ring is spread over the shaft end and snaps into its groove to shoulder the assembly. The two imperial series here (2000-5000 internal, 2100-5100 external) are dimensioned as separate programmes with different ring-number ladders, groove diameters and plier tools, so a housing groove and a shaft groove in the same machine will order two different rings, not one part used two ways.
What should an RFQ for these rings state?
The ring number (with the bore diameter it must fit), the series (internal 2000-5000 here vs the external 2100-5100 series), the groove diameter and width your housing machines, material and finish for the environment, the axial load to be retained, and quantity per size — plus destination country. The unit basis printed by dimension tables for this family varies by source, so state it explicitly. Commercial terms are confirmed at quotation.
What should an RFQ for these retaining rings state?
State the standard (DIN 471 external for a shaft, or DIN 472 internal for a bore), the shaft or bore nominal diameter, the ring material (the collected sheets attribute A2 stainless steel to the rings), the groove diameter and width your drawing machines, and quantity per size. Commercial terms are confirmed at quotation.
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support