6-3. Shape and dimensions of O-ring mounting groove
(For fixing S series)
(NOK S standard)
| unit=mm | |||||||||||
| NOK Call Number |
O-ring dimensions | Groove dimensions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thickness W | Inner diameter do | d-0.005 | D1+0.005 | D+0.005 | G+0.025 | H-0.01 | |||||
| S 3 S 4 S 5 S 6 S 7 S 8 S 9 S10 S11.2 S12 S12.5 S14 S15 S16 S18 S20 S22 |
1.5±0.1 | 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.7 11.5 12.0 13.5 14.5 15.5 17.5 19.5 21.5 |
±0.15 | 3 4 5 6 7 8 9 10 11.2 12 12.5 14 15 16 18 20 22 |
5.3 6.3 7.3 8.3 9.3 10.3 11.3 12.3 13.5 14.3 14.8 16.3 17.3 18.3 20.3 22.3 24.3 |
5 6 7 8 9 10 11 12 13.2 14 14.5 16 17 18 20 22 24 |
2.5 | 1.0 | |||
| S22.4 S24 S25 S26 S28 S29 S30 S31.5 S32 S34 S35 S35.5 S36 S38 S39 S40 |
2.0±0.1 | 21.9 23.5 24.5 25.5 27.5 28.5 29.5 31.0 31.5 33.5 34.5 35.0 35.5 37.5 38.5 39.5 |
22.4 24 25 26 28 29 30 31.5 32 34 35 35.5 36 38 39 40 |
25.9 27.5 28.5 29.5 31.5 32.5 33.5 35 35.5 37.5 38.5 39 39.5 41.5 42.5 43.5 |
25.4 27 28 29 31 32 33 34.5 35 37 38 38.5 39 41 42 43 |
2.7 | 1.5 | ||||
| S42 S44 S45 S46 S48 S50 S53 S55 S56 S60 S63 S65 S67 S70 |
41.5 43.5 44.5 45.5 47.5 49.5 52.5 54.5 55.5 59.5 62.5 64.5 66.5 69.5 |
±0.25 | 42 44 45 46 48 50 53 55 56 60 63 65 67 70 |
45.5 47.5 48.5 49.5 51 53 56 58 59 63 66 68 70 73 |
45 47 48 49 51 53 56 58 59 63 66 68 70 73 |
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| S71 S75 S80 S85 S90 S95 S100 S105 S110 S112 S115 S120 S125 |
70.5 74.5 79.5 84.5 89.5 94.5 99.5 104.5 109.5 111.5 114.5 119.5 124.5 |
±0.4 | 71 75 80 85 90 95 100 105 110 112 115 120 125 |
74 78 83 88 93 98 103 108 113 115 118 123 128 |
74 78 83 88 93 98 103 108 113 115 118 123 128 |
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| S130 S132 S135 S140 S145 S150 |
129.5 131.5 134.5 139.5 144.5 149.5 |
±0.6 | 130 132 135 140 145 150 |
133 135 138 143 148 153 |
133 135 138 143 148 153 |
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| References: "NOK O-ring" (NOK CORPORATION ed. Cat. No.050 ・ 2-98) NOK ・ O-ring, page 21 NOK S series (for fixing). | |||||||||||