OCHIAI
Ochiai Retaining Rings Basic Internal Ring RTW
Manufacturer: Ochiai Co., Ltd.
Model : RTW
Features
- This is a basic retaining ring that is mounted from the thrust direction (parallel to the hole or shaft) onto the mating hole (shaft) with a grooved surface.
Specifications
RTW-6 through 65 (Unit: mm)
| Size No. | Retaining Rings | d₄ (Ref.) | Groove dimention | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d₃ | t | b | a | d₀ | d₁ | d₂ | m | Ref. n | ||||||
| Basic | Tol. | Basic | Tol. | Approx. | Approx. | Min. | Basic | Tol. | Basic | Tol. | Min. | |||
| RTW-6 | 6.7 | ±0.18 | 0.4 | ±0.03 | 0.7 | 1.6 | 0.8 | 2.5 | 6 | 6.25 | +0.04/0 | 0.5 | +0.1/0 | 0.5 |
| RTW-7 | 7.7 | 0.4 | 0.8 | 1.7 | 0.8 | 3.0 | 7 | 7.3 | +0.06/0 | 0.5 | 0.5 | |||
| RTW-8 | 8.8 | 0.4 | 0.9 | 1.7 | 0.8 | 3.5 | 8 | 8.4 | 0.5 | 0.6 | ||||
| RTW-9 | 9.8 | 0.6 | ±0.04 | 1.1 | 2.2 | 0.8 | 4.0 | 9 | 9.4 | 0.7 | 0.6 | |||
| RTW-10 | 10.7 | 1 | ±0.05 | 1.5 | 2.8 | 1.2 | 4 | 10 | 10.4 | +0.11/0 | 1.15 | +0.14/0 | 0.6 | |
| RTW-11 | 11.8 | 1 | 1.5 | 3 | 1.2 | 4 | 11 | 11.4 | 1.15 | 0.6 | ||||
| RTW-12 | 13 | 1 | 1.7 | 3.1 | 1.5 | 5 | 12 | 12.5 | 1.15 | 0.8 | ||||
| RTW-13 | 14.1 | 1 | 1.7 | 3.1 | 1.5 | 6 | 13 | 13.6 | 1.15 | 0.9 | ||||
| RTW-14 | 15.1 | 1 | 1.9 | 3.6 | 1.7 | 6.4 | 14 | 14.6 | 1.15 | 0.9 | ||||
| RTW-15 | 16.2 | 1 | 1.9 | 3.6 | 1.7 | 7.4 | 15 | 15.7 | 1.15 | 1.1 | ||||
| RTW-16 | 17.3 | 1 | 1.9 | 3.7 | 1.7 | 8 | 16 | 16.8 | 1.15 | 1.2 | ||||
| RTW-17 | 18.3 | ±0.2 | 1 | 1.9 | 3.8 | 1.7 | 9 | 17 | 17.8 | 1.15 | 1.2 | |||
| RTW-18 | 19.5 | 1 | 2.4 | 4 | 1.7 | 10 | 18 | 19 | +0.21/0 | 1.15 | 1.5 | |||
| RTW-19 | 20.5 | 1 | 2.5 | 4 | 2 | 11 | 19 | 20 | 1.15 | 1.5 | ||||
| RTW-20 | 21.5 | 1 | 2.5 | 4 | 2 | 12 | 20 | 21 | 1.15 | 1.5 | ||||
| RTW-21 | 22.5 | 1 | 2.5 | 4.1 | 2 | 12 | 21 | 22 | 1.15 | 1.5 | ||||
| RTW-22 | 23.5 | 1 | 2.5 | 4.1 | 2 | 13 | 22 | 23 | 1.15 | 1.5 | ||||
| RTW-24 | 25.9 | 1.2 | ±0.06 | 2.5 | 4.3 | 2 | 15 | 24 | 25.2 | 1.35 | 1.8 | |||
| RTW-25 | 26.9 | 1.2 | 3 | 4.4 | 2 | 16 | 25 | 26.2 | 1.35 | 1.8 | ||||
| RTW-26 | 27.9 | 1.2 | 3 | 4.6 | 2 | 16 | 26 | 27.2 | 1.35 | 1.8 | ||||
| RTW-27 | 29.1 | ±0.25 | 1.2 | 3 | 4.6 | 2 | 17 | 27 | 28.4 | 1.35 | 2.1 | |||
| RTW-28 | 30.1 | 1.2 | 3 | 4.6 | 2 | 18 | 28 | 29.4 | +0.25/0 | 1.35 | 2.1 | |||
| RTW-30 | 32.1 | 1.2 | 3 | 4.7 | 2 | 20 | 30 | 31.4 | 1.35 | 2.1 | ||||
| RTW-32 | 34.4 | 1.2 | 3.5 | 5.2 | 2.5 | 21 | 32 | 33.7 | 1.35 | 2.6 | ||||
| RTW-34 | 36.5 | 1.5 | 3.5 | 5.2 | 2.5 | 23 | 34 | 35.7 | 1.65 | 2.6 | ||||
| RTW-35 | 37.8 | 1.5 | 3.5 | 5.2 | 2.5 | 24 | 35 | 37 | 1.65 | 3.0 | ||||
| RTW-36 | 38.8 | 1.5 | 3.5 | 5.2 | 2.5 | 25 | 36 | 38 | 1.65 | 3.0 | ||||
| RTW-37 | 39.8 | 1.5 | 3.5 | 5.2 | 2.5 | 26 | 37 | 39 | 1.65 | 3.0 | ||||
| RTW-38 | 40.8 | 1.5 | 4 | 5.3 | 2.5 | 27 | 38 | 40 | 1.65 | 3.3 | ||||
| RTW-40 | 43.5 | ±0.4 | 1.75 | ±0.07 | 4 | 5.7 | 2.5 | 28 | 40 | 42.5 | 1.9 | 3.8 | ||
| RTW-42 | 45.5 | 1.75 | 4 | 5.8 | 2.5 | 30 | 42 | 44.5 | 1.9 | 3.8 | ||||
| RTW-45 | 48.5 | 1.75 | 4.5 | 5.9 | 2.5 | 33 | 45 | 47.5 | 1.9 | 3.8 | ||||
| RTW-46 | 49.7 | ±0.45 | 1.75 | 5 | 6.1 | 2.5 | 33 | 46 | 48.5 | 1.9 | 3.8 | |||
| RTW-47 | 50.5 | 1.75 | 4.5 | 6.1 | 2.5 | 34 | 47 | 49.5 | 1.9 | 3.8 | ||||
| RTW-48 | 51.5 | 1.75 | 4.5 | 6.2 | 2.5 | 35 | 48 | 50.5 | +0.3/0 | 1.9 | 4.5 | |||
| RTW-50 | 54.2 | 2 | 4.5 | 6.5 | 2.5 | 37 | 50 | 53 | 2.2 | 4.5 | ||||
| RTW-52 | 56.2 | 2 | 5.1 | 6.5 | 2.5 | 39 | 52 | 55 | 2.2 | 4.5 | ||||
| RTW-55 | 59.2 | 2 | 5.1 | 6.5 | 2.5 | 41 | 55 | 58 | 2.2 | 4.5 | ||||
| RTW-56 | 60.2 | 2 | 5.1 | 6.6 | 2.5 | 42 | 56 | 59 | 2.2 | 4.5 | ||||
| RTW-58 | 62.2 | 2 | 5.1 | 6.8 | 2.5 | 44 | 58 | 61 | 2.2 | 4.5 | ||||
| RTW-60 | 64.2 | 2 | 5.5 | 6.8 | 2.5 | 46 | 60 | 63 | 2.2 | 4.5 | ||||
| RTW-62 | 66.2 | 2 | 5.5 | 6.9 | 2.5 | 48 | 62 | 65 | 2.2 | 4.5 | ||||
| RTW-63 | 67.2 | 2 | 5.5 | 6.9 | 2.5 | 49 | 63 | 66 | 2.2 | 4.5 | ||||
| RTW-65 | 69.2 | 2.5 | ±0.08 | 5.5 | 7 | 2.5 | 50 | 65 | 68 | 2.7 | 4.5 | |||
RTW-68 through 300 (Unit: mm)
| Size No. | Retaining Rings | d₄ (Ref.) | Groove dimention | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d₃ | t | b | a | d₀ | d₁ | d₂ | m | Ref. n | ||||||
| Basic | Tol. | Basic | Tol. | Approx. | Approx. | Min. | Basic | Tol. | Basic | Tol. | Min. | |||
| RTW-68 | 72.5 | ±0.45 | 2.5 | +0.08 | 6 | 7.4 | 2.5 | 53 | 68 | 71 | +0.3/0 | 2.7 | +0.14/0 | 4.5 |
| RTW-70 | 74.5 | 2.5 | 6 | 7.4 | 2.5 | 55 | 70 | 73 | 2.7 | 4.5 | ||||
| RTW-72 | 76.5 | 2.5 | 6.6 | 7.4 | 2.5 | 57 | 72 | 75 | 2.7 | 4.5 | ||||
| RTW-75 | 79.5 | 2.5 | 6.6 | 7.8 | 2.5 | 59.2 | 75 | 78 | 2.7 | 4.5 | ||||
| RTW-78 | 82.5 | ±0.55 | 2.5 | 6.6 | 8 | 2.5 | 62 | 78 | 81 | +0.35/0 | 2.7 | 4.5 | ||
| RTW-80 | 85.5 | 2.5 | 7 | 8 | 2.5 | 64 | 80 | 83.5 | 2.7 | 5.3 | ||||
| RTW-82 | 87.5 | 2.5 | 7 | 8 | 3 | 66 | 82 | 85.5 | 2.7 | 5.3 | ||||
| RTW-85 | 90.5 | 3 | ±0.09 | 7 | 8 | 3 | 69 | 85 | 88.5 | 3.2 | +0.54/0 | 5.3 | ||
| RTW-88 | 93.5 | 3 | 7.6 | 8.2 | 3 | 71 | 88 | 91.5 | 3.2 | 5.3 | ||||
| RTW-90 | 95.5 | 3 | 7.6 | 8.3 | 3 | 73 | 90 | 93.5 | 3.2 | 5.3 | ||||
| RTW-92 | 97.5 | 3 | 8 | 8.3 | 3 | 74 | 92 | 95.5 | 3.2 | 5.3 | ||||
| RTW-95 | 100.5 | 3 | 8 | 8.5 | 3 | 77 | 95 | 98.5 | 3.2 | 5.3 | ||||
| RTW-98 | 103.5 | 3 | 8.3 | 8.7 | 3 | 80 | 98 | 101.5 | 3.2 | 5.3 | ||||
| RTW-100 | 105.5 | 3 | 8.3 | 8.8 | 3 | 82 | 100 | 103.5 | 3.2 | 5.3 | ||||
| RTW-102 | 108 | 4 | 8.9 | 9 | 3 | 83 | 102 | 106 | +0.54/0 | 4.2 | 6.0 | |||
| RTW-105 | 112 | 4 | 8.9 | 9.1 | 3 | 86 | 105 | 109 | 4.2 | 6.0 | ||||
| RTW-108 | 115 | 4 | 8.9 | 9.5 | 3 | 87 | 108 | 112 | 4.2 | 6.0 | ||||
| RTW-110 | 117 | 4 | 8.9 | 10.2 | 3 | 89 | 110 | 114 | 4.2 | 6.0 | ||||
| RTW-112 | 119 | 4 | 8.9 | 10.2 | 3 | 90 | 112 | 116 | 4.2 | 6.0 | ||||
| RTW-115 | 122 | ±0.65 | 4 | 9.5 | 10.2 | 3 | 94 | 115 | 119 | 4.2 | 6.0 | |||
| RTW-120 | 127 | 4 | 9.5 | 10.7 | 3 | 98 | 120 | 124 | +0.63/0 | 4.2 | 6.0 | |||
| RTW-125 | 132 | 4 | 10 | 10.7 | 3.5 | 103 | 125 | 129 | 4.2 | 6.0 | ||||
| RTW-130 | 137 | +1.26/-0.63 | 4 | 10 | 10.7 | 3.5 | 108 | 130 | 134 | 4.2 | +0.2/0 | 6.0 | ||
| RTW-135 | 142 | 4 | 10.8 | 11 | 3.5 | 113 | 135 | 139 | 4.2 | 6.0 | ||||
| RTW-140 | 147 | 4 | 10.8 | 11 | 3.5 | 118 | 140 | 144 | 4.2 | 6.0 | ||||
| RTW-145 | 152 | 4 | 10.8 | 11 | 3.5 | 123 | 145 | 149 | 4.2 | 6.0 | ||||
| RTW-150 | 158 | 4 | 11.5 | 11.8 | 3.5 | 126 | 150 | 155 | 4.2 | 7.5 | ||||
| RTW-155 | 164 | 4 | 11.5 | 11.8 | 3.5 | 130 | 155 | 160 | 4.2 | 7.5 | ||||
| RTW-160 | 169 | 4 | 12 | 12.5 | 3.5 | 134 | 160 | 165 | 4.2 | 7.5 | ||||
| RTW-165 | 174.5 | 4 | 12 | 12.7 | 3.5 | 139 | 165 | 170 | 4.2 | 7.5 | ||||
| RTW-170 | 179.5 | 4 | 12 | — | 3.5 | 145 | 170 | 175 | 4.2 | 7.5 | ||||
| RTW-175 | 184.5 | +1.44/-0.72 | 4 | 12.5 | — | 3.5 | 149 | 175 | 180 | 4.2 | 7.5 | |||
| RTW-180 | 189.5 | 4 | 13 | — | 4 | 153 | 180 | 185 | +0.72/0 | 4.2 | 7.5 | |||
| RTW-185 | 194.5 | 4 | 13.5 | — | 4 | 157 | 185 | 190 | 4.2 | 7.5 | ||||
| RTW-190 | 199.5 | 4 | 13.5 | — | 4 | 162 | 190 | 195 | 4.2 | 7.5 | ||||
| RTW-195 | 204.5 | 4 | 13.5 | — | 4 | 167 | 195 | 200 | 4.2 | 7.5 | ||||
| RTW-200 | 209.5 | 4 | 14 | — | 4 | 171 | 200 | 205 | 4.2 | 7.5 | ||||
| RTW-210 | 222 | 5 | ±0.15 | 14 | — | 4 | 181 | 210 | 216 | 5.2 | +0.25/0 | 9.0 | ||
| RTW-220 | 232 | 5 | 14 | — | 4 | 191 | 220 | 226 | 5.2 | 9.0 | ||||
| RTW-230 | 242 | 5 | 14 | — | 4 | 201 | 230 | 236 | 5.2 | 9.0 | ||||
| RTW-240 | 252 | +1.62/-0.81 | 5 | 14 | — | 4 | 211 | 240 | 246 | 5.2 | 9.0 | |||
| RTW-250 | 262 | 5 | 14 | — | 4 | 221 | 250 | 256 | +0.81/0 | 5.2 | 9.0 | |||
| RTW-260 | 275 | 5 | 16 | — | 4 | 227 | 260 | 268 | 5.2 | 12.0 | ||||
| RTW-270 | 285 | 5 | 16 | — | 4 | 237 | 270 | 278 | 5.2 | 12.0 | ||||
| RTW-280 | 295 | 5 | 16 | — | 4 | 247 | 280 | 288 | 5.2 | 12.0 | ||||
| RTW-290 | 305 | 5 | 16 | — | 4 | 257 | 290 | 298 | 5.2 | 12.0 | ||||
| RTW-300 | 315 | 5 | 16 | — | 4 | 267 | 300 | 308 | 5.2 | 12.0 | ||||
- Material = Carbon spring steel
- – Up to RTW-200
Hardness = 40 through 50HRC, Finish = Phosphate coating (ACP) - – RTW-210 or over
Hardness = 40 through 50HRC, Finish = Phosphate coating (ACP)
