RFA WEAR RING
The square bearing ring RFA is a space saving component and an extension to the range of heavy duty bearing elements. It is used as a piston bearing element fitted in recessed grooves.
| Materials | |||
| Square Bearing Ring | |||
| Standard | POM-Compound | ||
| Alternative (on request) | PTFE-Compounds, Engineering Plastics, Thermoset Material | ||
| Application Range | |||
| Pressure [bar] | Temperature Range [°C] | Sliding Speed [m/s] | |
| Standard | – | – -55 … +120 | 3 |
| Design Hints Surface Finish | |||
| Surface Quality | Surface Hardness | ||
| Ra [µm] | Rt [µm] | [HRC] | |
| Sliding Surfaces | 0.1 – 0.3 | ≤ 1.5 | > 40 |
| Groove Base | 0.8 | ≤ 6.3 | |
| Groove Sides | 3.2 | ≤ 15 | |
SIZE
| D | d | b | b1 | d1 | e | Ref. Number |
| 40 | 35 | 9,5 | 9,7 | 39 | 7 | 12302 |
| 45 | 40 | 9,5 | 9,7 | 44 | 7 | 12306 |
| 46 | 41 | 5,9 | 6 | 45 | 7 | 136883 |
| 50 | 45 | 9,5 | 9,7 | 49 | 7 | 12308 |
| 55 | 50 | 9,5 | 9,7 | 54 | 7 | 12309 |
| 56 | 51 | 9,5 | 9,7 | 55 | 7 | 12310 |
| 60 | 55 | 5,9 | 6 | 59 | 7 | 136884 |
| 63 | 58 | 9,5 | 9,7 | 62 | 7 | 12312 |
| 65 | 60 | 9,5 | 9,7 | 64 | 7 | 12313 |
| 70 | 65 | 9,5 | 9,7 | 69 | 7 | 12314 |
| 75 | 70 | 9,5 | 9,7 | 74 | 7 | 12315 |
| 80 | 75 | 5,9 | 6 | 79 | 7 | 136885 |
| 80 | 75 | 9,5 | 9,7 | 79 | 7 | 12317 |
| 85 | 80 | 9,5 | 9,7 | 84 | 7 | 12318 |
| 90 | 82 | 5,9 | 6 | 89 | 7 | 12304 |
| 90 | 85 | 9,5 | 9,7 | 89 | 7 | 12320 |
| 95 | 90 | 9,5 | 9,7 | 94 | 7 | 12321 |
| 100 | 95 | 5,9 | 6 | 99 | 7 | 136886 |
| 100 | 95 | 9,5 | 9,7 | 99 | 7 | 12322 |
| 105 | 100 | 9,5 | 9,7 | 104 | 10 | 12323 |
| 110 | 105 | 9,5 | 9,7 | 109 | 10 | 12324 |
| 115 | 110 | 9,5 | 9,7 | 114 | 10 | 12325 |
| 120 | 115 | 5,9 | 6 | 119 | 10 | 136887 |
| 120 | 115 | 9,5 | 9,7 | 119 | 10 | 12326 |
| 125 | 120 | 9,3 | 9,5 | 124 | 10 | 19835 |
| 125 | 120 | 9,5 | 9,7 | 124 | 10 | 12327 |
| 130 | 125 | 14,8 | 15 | 129 | 10 | 12328 |
| 135 | 130 | 14,8 | 15 | 134 | 10 | 12329 |
| 140 | 135 | 14,8 | 15 | 139 | 10 | 12330 |
| 145 | 140 | 14,8 | 15 | 144 | 10 | 12331 |
| 150 | 145 | 14,8 | 15 | 149 | 10 | 12332 |
| 155 | 150 | 14,8 | 15 | 154 | 10 | 12333 |
| 160 | 155 | 14,8 | 15 | 159 | 10 | 12334 |
| 160 | 155 | 24,5 | 25 | 159 | 10 | 19836 |
| 170 | 165 | 14,8 | 15 | 169 | 10 | 12336 |
| 170 | 165 | 32,5 | 33 | 169 | 10 | 19837 |
| 180 | 172 | 3,5 | 3,6 | 179 | 10 | 19838 |
| 180 | 175 | 14,8 | 15 | 179 | 10 | 12337 |
| 190 | 185 | 14,8 | 15 | 189 | 10 | 12339 |
| 200 | 195 | 14,8 | 15 | 199 | 10 | 12340 |
| 210 | 205 | 14,8 | 15 | 209 | 12 | 12341 |
| 220 | 215 | 14,8 | 15 | 219 | 12 | 12342 |
| 225 | 220 | 14,8 | 15 | 224 | 12 | 12343 |
| 235 | 230 | 14,8 | 15 | 234 | 12 | 12344 |
| 240 | 235 | 14,8 | 15 | 239 | 12 | 12345 |
| 240 | 235 | 24,5 | 25 | 239 | 12 | 19839 |
| 250 | 245 | 14,8 | 15 | 249 | 12 | 12347 |
| 265 | 260 | 14,8 | 15 | 264 | 12 | 12349 |
| 275 | 270 | 14,8 | 15 | 274 | 12 | 12351 |
| 280 | 275 | 14,8 | 15 | 279 | 12 | 12352 |
| 290 | 285 | 14,8 | 15 | 289 | 12 | 12353 |
| 300 | 295 | 14,8 | 15 | 299 | 12 | 12354 |
| 310 | 305 | 14,8 | 15 | 309 | 15 | 12355 |
| 320 | 315 | 14,8 | 15 | 319 | 15 | 12356 |
| 340 | 335 | 24,5 | 25 | 339 | 15 | 12357 |
| 350 | 345 | 24,5 | 25 | 349 | 15 | 12358 |
| 360 | 355 | 24,5 | 25 | 359 | 15 | 12359 |
| 380 | 375 | 24,5 | 25 | 379 | 15 | 12360 |
| 400 | 395 | 24,5 | 25 | 399 | 15 | 12362 |
| 420 | 415 | 24,5 | 25 | 419 | 15 | 12364 |
| 425 | 420 | 24,5 | 25 | 424 | 15 | 12365 |
| 450 | 445 | 24,5 | 25 | 449 | 15 | 12368 |
| 480 | 475 | 24,5 | 25 | 479 | 15 | 12370 |
| 500 | 495 | 24,5 | 25 | 499 | 15 | 12371 |
| 560 | 555 | 24,5 | 25 | 559 | 15 | 12374 |
| 600 | 595 | 24,5 | 25 | 599 | 15 | 12376 |
| 630 | 625 | 24,5 | 25 | 629 | 15 | 12377 |
| 650 | 645 | 24,5 | 25 | 649 | 15 | 12379 |
| 700 | 695 | 24,5 | 25 | 699 | 15 | 12381 |