DIN 705 Adjusting Rings
DIN 705 adjusting rings — axially fitted position rings locked by a set screw, grooved pin or taper pin against a shaft, with the collected 49-size table from d = 2 to 200 mm covering d, b, dc, d0, d1, the locking-element sizes and reference weights for Form A and Form B / C.
Last updated: 2026-11
Specifications
A DIN 705 adjusting ring is a flat collar that slips axially over a shaft and is then locked in position by a small set screw, grooved pin or taper pin through the ring’s hub — the standard way to set a bearing, gear or lever position on a plain shaft without machining a groove. Forms A, B and C differ in the locking detail; the collected table prints reference weights for Form A and for Form B / C per size. The table spans nominal diameters d = 2 to 200 mm — 49 sizes — with d under an H8 band, hub width b under js14, outside diameter dc under h13, the locking-thread size d0, the pin bore d1 under H11, and the printed set-screw / grooved-pin / taper-pin designations per size. Where a size lists "/" or "-" for a locking element, the collected table prints no such option for that size. Materials are not printed by the collected specification and stay per RFQ.
| Standard | DIN 705 — adjusting rings (axially fitted shaft collars locked by set screw or pin) |
|---|---|
| Nominal diameter range (table) | d = 2 to 200 mm — 49 sizes as printed (parenthesised sizes are non-preferred in the source table) |
| Tolerance bands | d min = nominal (H8); b js14; dc max = nominal size (h13); d1 H11 — as printed per column |
| Source footnotes | As printed: “d1 ≤ 70 one set screw with slot”; “d2 ≥ 75 one set screw with hexagon socket” |
| Row, nominal d 1 | nominal d 2 | d 2 (max 2.014, H8) | b 3.5 (max 3.65 / min 3.35, js14) | dc 6 (max = nominal size) / min 5.82 (h13) | d0 M2 | d1 0.6 (max 0.66, H11) | set screw① M2×3 | grooved pin② / | taper pin② 0.6×6 | ≈ kg/1000 pcs Form A 0.69 / Form B C 0.65 |
| Row, nominal d 2 | nominal d 2.5 | d 2.5 (max 2.514, H8) | b 4 (max 4.15 / min 3.85, js14) | dc 7 (max = nominal size) / min 6.78 (h13) | d0 M2 | d1 0.8 (max 0.86, H11) | set screw① M2×3 | grooved pin② / | taper pin② 0.8×6 | ≈ kg/1000 pcs Form A 1.05 / Form B C 0.96 |
| Row, nominal d 3 | nominal d 3 | d 3 (max 3.014, H8) | b 5 (max 5.15 / min 4.85, js14) | dc 7 (max = nominal size) / min 6.78 (h13) | d0 M2 | d1 0.8 (max 0.86, H11) | set screw① M2×3 | grooved pin② / | taper pin② 0.8×6 | ≈ kg/1000 pcs Form A 1.23 / Form B C 1.15 |
| Row, nominal d 4 | nominal d (3.5) | d 3.5 (max 3.518, H8) | b 5 (max 5.15 / min 4.85, js14) | dc 8 (max = nominal size) / min 7.78 (h13) | d0 M2.5 | d1 1 (max 1.06, H11) | set screw① M2.5×3 | grooved pin② / | taper pin② 1×8 | ≈ kg/1000 pcs Form A 1.62 / Form B C 1.55 |
| Row, nominal d 5 | nominal d 4 | d 4 (max 4.018, H8) | b 5 (max 5.15 / min 4.85, js14) | dc 8 (max = nominal size) / min 7.78 (h13) | d0 M2.5 | d1 1 (max 1.06, H11) | set screw① M2.5×3 | grooved pin② / | taper pin② 1×8 | ≈ kg/1000 pcs Form A 1.52 / Form B C 1.45 |
| Row, nominal d 6 | nominal d (4.5) | d 4.5 (max 4.518, H8) | b 6 (max 6.15 / min 5.85, js14) | dc 10 (max = nominal size) / min 9.78 (h13) | d0 M3 | d1 1.5 (max 1.56, H11) | set screw① M3×4 | grooved pin② 1.5×10 | taper pin② 1.5×10 | ≈ kg/1000 pcs Form A 2.96 / Form B C 2.89 |
| Row, nominal d 7 | nominal d 5 | d 5 (max 5.018, H8) | b 6 (max 6.15 / min 5.85, js14) | dc 10 (max = nominal size) / min 9.78 (h13) | d0 M3 | d1 1.5 (max 1.56, H11) | set screw① M3×4 | grooved pin② 1.5×10 | taper pin② 1.5×10 | ≈ kg/1000 pcs Form A 2.8 / Form B C 2.73 |
| Row, nominal d 8 | nominal d (5.5) | d 5.5 (max 5.518, H8) | b 6 (max 6.15 / min 5.85, js14) | dc 12 (max = nominal size) / min 11.73 (h13) | d0 M4 | d1 1.5 (max 1.56, H11) | set screw① M4×5 | grooved pin② 1.5×12 | taper pin② 1.5×12 | ≈ kg/1000 pcs Form A 4.32 / Form B C 4.14 |
| Row, nominal d 9 | nominal d 6 | d 6 (max 6.018, H8) | b 8 (max 8.18 / min 7.82, js14) | dc 12 (max = nominal size) / min 11.73 (h13) | d0 M4 | d1 1.5 (max 1.56, H11) | set screw① M4×5 | grooved pin② 1.5×12 | taper pin② 1.5×12 | ≈ kg/1000 pcs Form A 5.48 / Form B C 5.26 |
| Row, nominal d 10 | nominal d (7) | d 7 (max 7.022, H8) | b 8 (max 8.18 / min 7.82, js14) | dc 12 (max = nominal size) / min 11.73 (h13) | d0 M4 | d1 1.5 (max 1.56, H11) | set screw① M4×5 | grooved pin② 1.5×12 | taper pin② 1.5×12 | ≈ kg/1000 pcs Form A 4.88 / Form B C 4.64 |
| Row, nominal d 11 | nominal d 8 | d 8 (max 8.022, H8) | b 8 (max 8.18 / min 7.82, js14) | dc 16 (max = nominal size) / min 15.73 (h13) | d0 M4 | d1 2 (max 2.06, H11) | set screw① M4×6 | grooved pin② 2×16 | taper pin② 2×16 | ≈ kg/1000 pcs Form A 9.4 / Form B C 9.2 |
| Row, nominal d 12 | nominal d 10 | d 10 (max 10.022, H8) | b 10 (max 10.18 / min 9.82, js14) | dc 20 (max = nominal size) / min 19.67 (h13) | d0 M5 | d1 3 (max 3.06, H11) | set screw① M5×8 | grooved pin② 3×20 | taper pin② 3×20 | ≈ kg/1000 pcs Form A 18.5 / Form B C 18 |
| Row, nominal d 13 | nominal d 12 | d 12 (max 12.027, H8) | b 12 (max 12.215 / min 11.785, js14) | dc 22 (max = nominal size) / min 21.67 (h13) | d0 M6 | d1 4 (max 4.075, H11) | set screw① M6×8 | grooved pin② 4×22 | taper pin② 4×22 | ≈ kg/1000 pcs Form A 25.2 / Form B C 24.4 |
| Row, nominal d 14 | nominal d 14 | d 14 (max 14.027, H8) | b 12 (max 12.215 / min 11.785, js14) | dc 25 (max = nominal size) / min 24.67 (h13) | d0 M6 | d1 4 (max 4.075, H11) | set screw① M6×8 | grooved pin② 4×24 | taper pin② 4×24 | ≈ kg/1000 pcs Form A 31.7 / Form B C 30.9 |
| Row, nominal d 15 | nominal d (15) | d 15 (max 15.027, H8) | b 12 (max 12.215 / min 11.785, js14) | dc 25 (max = nominal size) / min 24.67 (h13) | d0 M6 | d1 4 (max 4.075, H11) | set screw① M6×8 | grooved pin② 4×24 | taper pin② 4×24 | ≈ kg/1000 pcs Form A 29.8 / Form B C 28.8 |
| Row, nominal d 16 | nominal d 16 | d 16 (max 16.027, H8) | b 12 (max 12.215 / min 11.785, js14) | dc 28 (max = nominal size) / min 27.67 (h13) | d0 M6 | d1 4 (max 4.075, H11) | set screw① M6×8 | grooved pin② 4×28 | taper pin② 4×28 | ≈ kg/1000 pcs Form A 38.4 / Form B C 37.6 |
| Row, nominal d 17 | nominal d 18 | d 18 (max 18.027, H8) | b 14 (max 14.215 / min 13.785, js14) | dc 32 (max = nominal size) / min 31.61 (h13) | d0 M6 | d1 5 (max 5.075, H11) | set screw① M6×8 | grooved pin② 5×32 | taper pin② 5×32 | ≈ kg/1000 pcs Form A 60 / Form B C 58.4 |
| Row, nominal d 18 | nominal d 20 | d 20 (max 20.033, H8) | b 14 (max 14.215 / min 13.785, js14) | dc 32 (max = nominal size) / min 31.61 (h13) | d0 M6 | d1 5 (max 5.075, H11) | set screw① M6×8 | grooved pin② 5×32 | taper pin② 5×32 | ≈ kg/1000 pcs Form A 53 / Form B C 52 |
| Row, nominal d 19 | nominal d 22 | d 22 (max 22.033, H8) | b 14 (max 14.215 / min 13.785, js14) | dc 36 (max = nominal size) / min 35.61 (h13) | d0 M6 | d1 5 (max 5.075, H11) | set screw① M6×10 | grooved pin② 5×36 | taper pin② 5×36 | ≈ kg/1000 pcs Form A 69 / Form B C 67.9 |
| Row, nominal d 20 | nominal d (24) | d 24 (max 24.033, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 40 (max = nominal size) / min 39.61 (h13) | d0 M8 | d1 6 (max 6.075, H11) | set screw① M8×12 | grooved pin② 6×40 | taper pin② 6×40 | ≈ kg/1000 pcs Form A 100 / Form B C 98 |
| Row, nominal d 21 | nominal d 25 | d 25 (max 25.033, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 40 (max = nominal size) / min 39.61 (h13) | d0 M8 | d1 6 (max 6.075, H11) | set screw① M8×10 | grooved pin② 6×40 | taper pin② 6×40 | ≈ kg/1000 pcs Form A 95.6 / Form B C 93.2 |
| Row, nominal d 22 | nominal d (26) | d 26 (max 26.033, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 40 (max = nominal size) / min 39.61 (h13) | d0 M8 | d1 6 (max 6.075, H11) | set screw① M8×10 | grooved pin② 6×40 | taper pin② 6×40 | ≈ kg/1000 pcs Form A 90.5 / Form B C 88.3 |
| Row, nominal d 23 | nominal d (28) | d 28 (max 28.033, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 45 (max = nominal size) / min 44.61 (h13) | d0 M8 | d1 6 (max 6.075, H11) | set screw① M8×12 | grooved pin② 6×45 | taper pin② 6×45 | ≈ kg/1000 pcs Form A 122 / Form B C 119 |
| Row, nominal d 24 | nominal d 30 | d 30 (max 30.033, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 45 (max = nominal size) / min 44.61 (h13) | d0 M8 | d1 6 (max 6.075, H11) | set screw① M8×10 | grooved pin② 6×45 | taper pin② 6×45 | ≈ kg/1000 pcs Form A 111 / Form B C 108 |
| Row, nominal d 25 | nominal d 32 | d 32 (max 32.039, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 50 (max = nominal size) / min 49.61 (h13) | d0 M8 | d1 8 (max 8.09, H11) | set screw① M8×12 | grooved pin② 8×50 | taper pin② 8×50 | ≈ kg/1000 pcs Form A 145 / Form B C 140 |
| Row, nominal d 26 | nominal d (35) | d 35 (max 35.039, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 56 (max = nominal size) / min 55.54 (h13) | d0 M8 | d1 8 (max 8.09, H11) | set screw① M8×12 | grooved pin② 8×55 | taper pin② 8×55 | ≈ kg/1000 pcs Form A 187 / Form B C 182 |
| Row, nominal d 27 | nominal d 36 | d 36 (max 36.039, H8) | b 16 (max 16.215 / min 15.785, js14) | dc 56 (max = nominal size) / min 55.54 (h13) | d0 M8 | d1 8 (max 8.09, H11) | set screw① M8×12 | grooved pin② 8×55 | taper pin② 8×55 | ≈ kg/1000 pcs Form A 180 / Form B C 176 |
| Row, nominal d 28 | nominal d 40 | d 40 (max 40.039, H8) | b 18 (max 18.215 / min 17.785, js14) | dc 63 (max = nominal size) / min 62.54 (h13) | d0 M10 | d1 8 (max 8.09, H11) | set screw① M10×16 | grooved pin② 8×60 | taper pin② 8×60 | ≈ kg/1000 pcs Form A 261 / Form B C 256 |
| Row, nominal d 29 | nominal d 45 | d 45 (max 45.039, H8) | b 18 (max 18.215 / min 17.785, js14) | dc 70 (max = nominal size) / min 69.54 (h13) | d0 M10 | d1 8 (max 8.09, H11) | set screw① M10×16 | grooved pin② 8×70 | taper pin② 8×70 | ≈ kg/1000 pcs Form A 317 / Form B C 310 |
| Row, nominal d 30 | nominal d 50 | d 50 (max 50.039, H8) | b 18 (max 18.215 / min 17.785, js14) | dc 80 (max = nominal size) / min 79.54 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×16 | grooved pin② 10×80 | taper pin② 10×80 | ≈ kg/1000 pcs Form A 429 / Form B C 421 |
| Row, nominal d 31 | nominal d (55) | d 55 (max 55.046, H8) | b 18 (max 18.215 / min 17.785, js14) | dc 80 (max = nominal size) / min 79.54 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×16 | grooved pin② 10×80 | taper pin② 10×80 | ≈ kg/1000 pcs Form A 373 / Form B C 364 |
| Row, nominal d 32 | nominal d 56 | d 56 (max 56.046, H8) | b 18 (max 18.215 / min 17.785, js14) | dc 80 (max = nominal size) / min 79.54 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×16 | grooved pin② 10×80 | taper pin② 10×80 | ≈ kg/1000 pcs Form A 361 / Form B C 352 |
| Row, nominal d 33 | nominal d (60) | d 60 (max 60.046, H8) | b 20 (max 20.26 / min 19.74, js14) | dc 90 (max = nominal size) / min 89.46 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×16 | grooved pin② 10×90 | taper pin② 10×90 | ≈ kg/1000 pcs Form A 552 / Form B C 543 |
| Row, nominal d 34 | nominal d 63 | d 63 (max 63.046, H8) | b 20 (max 20.26 / min 19.74, js14) | dc 90 (max = nominal size) / min 89.46 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×16 | grooved pin② 10×90 | taper pin② 10×90 | ≈ kg/1000 pcs Form A 508 / Form B C 498 |
| Row, nominal d 35 | nominal d (65) | d 65 (max 65.046, H8) | b 20 (max 20.26 / min 19.74, js14) | dc 100 (max = nominal size) / min 99.46 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×20 | grooved pin② 10×100 | taper pin② 10×100 | ≈ kg/1000 pcs Form A 708 / Form B C 698 |
| Row, nominal d 36 | nominal d 70 | d 70 (max 70.046, H8) | b 20 (max 20.26 / min 19.74, js14) | dc 100 (max = nominal size) / min 99.46 (h13) | d0 M10 | d1 10 (max 10.09, H11) | set screw① M10×20 | grooved pin② 10×100 | taper pin② 10×100 | ≈ kg/1000 pcs Form A 626 / Form B C 616 |
| Row, nominal d 37 | nominal d (75) | d 75 (max 75.046, H8) | b 22 (max 22.26 / min 21.74, js14) | dc 110 (max = nominal size) / min 109.46 (h13) | d0 M12 | d1 10 (max 10.09, H11) | set screw① M12×20 | grooved pin② 10×110 | taper pin② 10×110 | ≈ kg/1000 pcs Form A 871 / Form B C 860 |
| Row, nominal d 38 | nominal d 80 | d 80 (max 80.046, H8) | b 22 (max 22.26 / min 21.74, js14) | dc 110 (max = nominal size) / min 109.46 (h13) | d0 M12 | d1 10 (max 10.09, H11) | set screw① M12×20 | grooved pin② 10×110 | taper pin② 10×110 | ≈ kg/1000 pcs Form A 768 / Form B C 755 |
| Row, nominal d 39 | nominal d (85) | d 85 (max 85.054, H8) | b 22 (max 22.26 / min 21.74, js14) | dc 125 (max = nominal size) / min 124.37 (h13) | d0 M12 | d1 12 (max 12.11, H11) | set screw① M12×25 | grooved pin② 12×120 | taper pin② 12×120 | ≈ kg/1000 pcs Form A 1130 / Form B C 1110 |
| Row, nominal d 40 | nominal d 90 | d 90 (max 90.054, H8) | b 22 (max 22.26 / min 21.74, js14) | dc 125 (max = nominal size) / min 124.37 (h13) | d0 M12 | d1 12 (max 12.11, H11) | set screw① M12×20 | grooved pin② 12×120 | taper pin② 12×120 | ≈ kg/1000 pcs Form A 1010 / Form B C 990 |
| Row, nominal d 41 | nominal d 100 | d 100 (max 100.054, H8) | b 25 (max 25.26 / min 24.74, js14) | dc 140 (max = nominal size) / min 139.37 (h13) | d0 M12 | d1 12 (max 12.11, H11) | set screw① M12×25 | grooved pin② / | taper pin② 12×140 | ≈ kg/1000 pcs Form A 1470 / Form B C 1450 |
| Row, nominal d 42 | nominal d 110 | d 110 (max 110.054, H8) | b 25 (max 25.26 / min 24.74, js14) | dc 160 (max = nominal size) / min 159.37 (h13) | d0 M12 | d1 12 (max 12.11, H11) | set screw① M12×30 | grooved pin② / | taper pin② 12×160 | ≈ kg/1000 pcs Form A 2060 / Form B C 2040 |
| Row, nominal d 43 | nominal d (120) | d 120 (max 120.054, H8) | b 25 (max 25.26 / min 24.74, js14) | dc 160 (max = nominal size) / min 159.37 (h13) | d0 M12 | d1 12 (max 12.11, H11) | set screw① M12×25 | grooved pin② / | taper pin② 12×160 | ≈ kg/1000 pcs Form A 1710 / Form B C 1690 |
| Row, nominal d 44 | nominal d 125 | d 125 (max 125.063, H8) | b 28 (max 28.26 / min 27.74, js14) | dc 180 (max = nominal size) / min 179.37 (h13) | d0 M16 | d1 16 (max 16.11, H11) | set screw① M16×35 | grooved pin② / | taper pin② 16×180 | ≈ kg/1000 pcs Form A 2850 / Form B C 2820 |
| Row, nominal d 45 | nominal d 140 | d 140 (max 140.063, H8) | b 28 (max 28.26 / min 27.74, js14) | dc 200 (max = nominal size) / min 199.28 (h13) | d0 M16 | d1 16 (max 16.11, H11) | set screw① M16×35 | grooved pin② / | taper pin② 16×200 | ≈ kg/1000 pcs Form A 3470 / Form B C 3430 |
| Row, nominal d 46 | nominal d (150) | d 150 (max 150.063, H8) | b 28 (max 28.26 / min 27.74, js14) | dc 200 (max = nominal size) / min 199.28 (h13) | d0 M16 | d1 16 (max 16.11, H11) | set screw① M16×30 | grooved pin② / | taper pin② 16×200 | ≈ kg/1000 pcs Form A 2980 / Form B C 2940 |
| Row, nominal d 47 | nominal d 160 | d 160 (max 160.063, H8) | b 32 (max 32.31 / min 31.69, js14) | dc 220 (max = nominal size) / min 219.28 (h13) | d0 M20 | d1 - (max -, H11) | set screw① M20×35 | grooved pin② / | taper pin② / | ≈ kg/1000 pcs Form A 4460 / Form B C - |
| Row, nominal d 48 | nominal d 180 | d 180 (max 180.063, H8) | b 32 (max 32.31 / min 31.69, js14) | dc 250 (max = nominal size) / min 249.28 (h13) | d0 M20 | d1 - (max -, H11) | set screw① M20×40 | grooved pin② / | taper pin② / | ≈ kg/1000 pcs Form A 5900 / Form B C - |
| Row, nominal d 49 | nominal d 200 | d 200 (max 200.072, H8) | b 32 (max 32.31 / min 31.69, js14) | dc 280 (max = nominal size) / min 279.19 (h13) | d0 M20 | d1 - (max -, H11) | set screw① M20×45 | grooved pin② / | taper pin② / | ≈ kg/1000 pcs Form A 7560 / Form B C - |
| Materials / finish | Not printed by the collected specification — per RFQ |
| MOQ / lead time | Not owner-confirmed for this family — confirmed at quotation |
Materials
- Not printed by the collected specification — per RFQ
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 (DIN 705 Adjusting Rings) 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
How do I lock a DIN 705 ring, and which form does the table describe?
The ring’s hub carries three locking options per size, printed in the collected table: a set screw (size d0, e.g. M4 for nominal d 6), a parallel grooved pin through the d1 bore, or a taper pin in the same bore — marked with the source’s ①/② footnotes about slot versus hexagon-socket drives. Where the row prints “/” or “-” the source offers no such option for that size (grooved and taper pins disappear above d 75 and d1 closes at d 160). Form A versus Form B / C differ in the locking detail; the table prints reference weights for both so you can sanity-check the part you are quoting. Confirm the form against your drawing before ordering.
When is an adjusting ring better than a grooved retaining ring?
When the position must be adjustable or the shaft must stay ungrooved. A DIN 471/472 ring needs a groove machined at an exact position and is effectively permanent; a DIN 705 collar clamps anywhere on a plain shaft and can be repositioned or removed with hand tools. The trade-offs: it protrudes further from the shaft (dc is several times d), and the set screw or pin bears locally on the shaft surface, so it suits positioning duty rather than high axial loads.
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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