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Retaining rings DIN 472 (internal, for bores): ring dimensions and groove diameter d2 × width m, 8 to 110 mm

What groove diameter and width does a DIN 472 internal retaining ring (circlip) need in a bore, and what are the ring's thickness and lug sizes? · Standard part · basis: DIN 472:2017 table as published by Maedler (d1, s, d2, m, d3, a, b); four rows cross-checked; McMaster-Carr linked for CAD

Also called: din 472, din 472 groove, internal circlip groove, bore circlip groove dimensions, internal retaining ring dimensions, din 472 table, circlip groove for 22mm bearing, internal snap ring groove, innensicherungsring, circlip groove 62mm bore, circlip groove 35mm bore

Exact dimensions. True size, with no printing tolerance added.

sizes
41 in table

Notes

  • DIN 472 is the internal retaining ring for bores: the ring sits in a groove cut into the housing bore and presses outward. Groove diameter d2 is larger than the bore d1 (depth = (d2 − d1) / 2, computed here), groove width m is the ring thickness + 0.1 mm up to 1.75 mm rings and + 0.15 mm from 2.0 mm rings up (true on every row). The ring numbers are thickness s, free outside diameter d3, lug width a and ring width b.
  • Table: 8 to 110 mm as printed in Maedler's DIN 472:2017 data sheet. Four rows (10, 20, 30, 38 mm) agree with an example table on Sunhyings' page; no second full table was readable, so a, b and d3 are from Maedler only. The groove depth column is derived from d1 and d2, not printed.
  • Files: grooved test sleeves for 11 sizes, bore d1 with the groove d2 × m, nominal. The sleeve's outside diameter (d2 + 6 mm), length (16 mm) and groove position are an example chosen here, not published; d1, d2 and m are the standard's. A bearing seat that needs a ring combines this groove with the bearing OD (see the deep-groove bearing pages).
  • Left out: the ring outline (lug shape and gap are not fully published), the lug-hole diameter d5 and the groove edge margin n (not in the table used), sizes below 8 mm and above 110 mm, heavy type.
  • McMaster-Carr: its DIN retaining ring category is linked below (it covers DIN 471 and DIN 472 rings); inch internal rings are also stocked there under MS 16625-type listings, but that size table was not readable here, so no inch numbers are given.

Retaining rings DIN 472 (internal, for bores): ring dimensions and… size chart

bore d1, mmring thickness s, mmring free outer Ø d3, mmlug width a (max), mmring width b (approx), mmgroove Ø d2, mmgroove width m, mmgroove depth (d2 − d1) / 2, mm
80.88.72.41.18.40.90.2
10110.83.21.410.41.10.2
11111.83.31.511.41.10.2
121133.41.712.51.10.25
13114.13.61.813.61.10.3
14115.13.71.814.61.10.3
15116.23.7215.71.10.35
16117.33.8216.81.10.4
17118.33.92.117.81.10.4
18119.54.12.2191.10.5
19120.54.12.2201.10.5
20121.54.12.3211.10.5
21122.54.22.4221.10.5
22123.54.22.5231.10.5
241.225.94.32.625.21.30.6
251.226.94.52.726.21.30.6
261.227.94.72.827.21.30.6
281.230.14.82.929.41.30.7
301.232.14.8331.41.30.7
321.234.45.43.233.71.30.85
351.537.85.43.4371.61
371.539.85.53.6391.61
381.540.85.53.7401.61
401.7543.55.83.942.51.851.25
421.7545.55.94.144.51.851.25
451.7548.56.24.347.51.851.25
471.7550.56.44.449.51.851.25
50254.26.54.6532.151.5
52256.26.74.7552.151.5
55259.26.85582.151.5
58262.26.95.2612.151.5
60264.27.35.4632.151.5
62266.27.35.5652.151.5
682.572.57.86.1712.651.5
722.576.57.86.4752.651.5
752.579.57.86.6782.651.5
802.585.58.5783.52.651.75
85390.58.67.288.53.151.75
90395.58.67.693.53.151.75
1003105.59.28.4103.53.151.75
110411710.491144.152

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

MaedlerRetaining rings DIN 472 for boreholes (DIN 472:2017): d1, s, d2, m, d3, a, b, 8 to 110 mmwebPublisher's page; dimensions are facts
SunhyingsRetaining rings (circlips) for shafts and bores: example groove table (DIN 472 rows used as a cross-check)webPublisher's page; dimensions are facts
McMaster-CarrDIN retaining rings (DIN 471 / 472) (free STEP/IGES per part, for your own design use; no redistribution)STEP, IGES, PDFMcMaster-Carr site terms: personal design use, no redistribution verify
McMaster-CarrRetaining rings (free STEP/IGES per part, for your own design use; no redistribution)STEP, IGES, PDFMcMaster-Carr site terms: personal design use, no redistribution verify

Free files

★ Free files 11 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

groove-gauge-bore-10mm-din-472Sleeve with a Ø10 bore and the DIN 472 ring groove: groove Ø10.4 (d2) × 1.1 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø16.4; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-12mm-din-472Sleeve with a Ø12 bore and the DIN 472 ring groove: groove Ø12.5 (d2) × 1.1 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø18.5; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-15mm-din-472Sleeve with a Ø15 bore and the DIN 472 ring groove: groove Ø15.7 (d2) × 1.1 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø21.7; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-17mm-din-472Sleeve with a Ø17 bore and the DIN 472 ring groove: groove Ø17.8 (d2) × 1.1 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø23.8; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-20mm-din-472Sleeve with a Ø20 bore and the DIN 472 ring groove: groove Ø21 (d2) × 1.1 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø27; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-25mm-din-472Sleeve with a Ø25 bore and the DIN 472 ring groove: groove Ø26.2 (d2) × 1.3 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø32.2; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-30mm-din-472Sleeve with a Ø30 bore and the DIN 472 ring groove: groove Ø31.4 (d2) × 1.3 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø37.4; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-35mm-din-472Sleeve with a Ø35 bore and the DIN 472 ring groove: groove Ø37 (d2) × 1.6 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø43; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-40mm-din-472Sleeve with a Ø40 bore and the DIN 472 ring groove: groove Ø42.5 (d2) × 1.85 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø48.5; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-50mm-din-472Sleeve with a Ø50 bore and the DIN 472 ring groove: groove Ø53 (d2) × 2.15 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø59; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
groove-gauge-bore-62mm-din-472Sleeve with a Ø62 bore and the DIN 472 ring groove: groove Ø65 (d2) × 2.15 mm wide (m), 16 mm long, groove centre 6 mm from the top, outside Ø71; nominal values; the outside diameter, length and groove position are an example, d1, d2 and m are the standard'sSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=retaining-rings-din-472-internal

Retaining rings DIN 472 (internal, for bores): ring dimensions and groove diameter d2 × width m, 8 to 110 mm, isometric render of a generated part
Render of groove-gauge-bore-25mm-din-472 from the free STEP; not to scale.

Fits with

Retaining rings DIN 471 (external, for shafts): ring dimensions and groove diameter d2 × width m, 3 to 100 mm, isometric render of a generated part
Retaining rings DIN 471 (external, for shafts): ring dimensions and groove diameter d2 × width m, 3 to 100 mm56 sizes★ 11 files
Metric shafts Ø3 to Ø10 with D-flats and clip grooves, isometric render of a generated part
Metric shafts Ø3 to Ø10 with D-flats and clip grooves10 sizes★ 10 files
Ball bearings, 683 to 6210 and flanged F6xx (ISO 15), isometric render of a generated part
Ball bearings, 683 to 6210 and flanged F6xx (ISO 15)44 sizes★ 44 files
Deep-groove ball bearings, series 60, 62, 63, 68 and 69: 6000 to 6310 (ISO 15), isometric render of a generated part
Deep-groove ball bearings, series 60, 62, 63, 68 and 69: 6000 to 6310 (ISO 15)55 sizes★ 55 files
608 ball bearing, isometric render of a generated part
608 ball bearing7×22×22 mm★ 2 files
Pillow block KP08 envelope with a 608 pocket, isometric render of a generated part
Pillow block KP08 envelope with a 608 pocket5 sizes★ 1 file

Questions

What groove does a 22 mm bore DIN 472 ring need?

Groove diameter 23.0 mm, 1.1 mm wide (depth 0.5 mm); the ring is 1.0 mm thick with a 23.5 mm free outside diameter.

How wide is a DIN 472 groove?

The ring thickness plus 0.1 mm for rings up to 1.75 mm (1.1 for 1.0, 1.3 for 1.2, 1.6 for 1.5) and plus 0.15 mm from 2.0 mm rings (2.15, 2.65, 3.15, 4.15).

Which bearing OD needs a DIN 472 ring?

Any bore size in the table; for a 22 mm bore (608 outside diameter) the groove is Ø23.0 × 1.1.