Double Slotted Disc Spring
| Item no. | D/mm | d/mm | t/mm | H0/mm | Allow transfer wheelbase ／kgs.cm | Axial pressure F/N |
| SY1301 | 14 | 3 | 0.5 | 1.4 | 0.6 | 80 |
| SY1302 | 14 | 4 | 0.5 | 1.3 | 1.5 | 140 |
| SY1303 | 14 | 5 | 0.5 | 1.2 | 2.6 | 210 |
| SY1304 | 18 | 6 | 0.5 | 1.5 | 3.2 | 180 |
| SY1305 | 18 | 7 | 0.5 | 1.4 | 5.0 | 250 |
| SY1306 | 18 | 8 | 0.5 | 1.3 | 7.1 | 310 |
| SY1307 | 22 | 9 | 0.6 | 1.6 | 9.5 | 370 |
| SY1308 | 22 | 10 | 0.6 | 1.6 | 12.5 | 430 |
| SY1309 | 22 | 11 | 0.6 | 1.5 | 15.1 | 500 |
| SY1310 | 27 | 12 | 0.65 | 1.8 | 19.4 | 520 |
| SY1311 | 27 | 13 | 0.65 | 1.8 | 23 | 590 |
| SY1312 | 27 | 14 | 0.65 | 1.7 | 27 | 680 |
| SY1313 | 27 | 15 | 0.65 | 1.6 | 31 | 770 |
| SY1314 | 37 | 16 | 0.9 | 2.6 | 50 | 1030 |
| SY1315 | 37 | 17 | 0.9 | 2.5 | 57 | 1150 |
| SY1316 | 37 | 18 | 0.9 | 2.4 | 67 | 1270 |
| SY1317 | 37 | 20 | 0.9 | 2.3 | 85 | 1540 |
| SY1318 | 42 | 22 | 0.9 | 2.5 | 98 | 1490 |
| SY1319 | 42 | 24 | 0.9 | 2.3 | 120 | 1760 |
| SY1320 | 42 | 25 | 0.9 | 2.3 | 133 | 1900 |
| SY1321 | 52 | 28 | 1.15 | 3.1 | 208 | 1550 |
| SY1322 | 52 | 30 | 1.15 | 3.0 | 248 | 1900 |
| SY1323 | 52 | 32 | 1.15 | 2.7 | 283 | 3300 |
| SY1324 | 52 | 35 | 1.15 | 2.5 | 331 | 3750 |
| SY1325 | 62 | 38 | 1.15 | 3.1 | 402 | 3600 |
| SY1326 | 62 | 40 | 1.15 | 3.0 | 453 | 4000 |
| SY1327 | 62 | 42 | 1.15 | 2.8 | 506 | 4450 |
| SY1328 | 62 | 45 | 1.15 | 2.5 | 597 | 5200 |
| SY1329 | 70 | 48 | 1.15 | 3.0 | 678 | 5000 |
| SY1330 | 70 | 50 | 1.15 | 2.7 | 746 | 5500 |
| SY1331 | 70 | 55 | 1.15 | 2.4 | 928 | 7000 |
| SY1332 | 80 | 60 | 1.15 | 2.7 | 1116 | 6800 |
| SY1333 | 90 | 65 | 1.15 | 3.1 | 1308 | 6700 |
| SY1334 | 90 | 70 | 1.15 | 2.7 | 1538 | 8000 |
| SY1335 | 100 | 75 | 1.15 | 3.1 | 1758 | 7800 |
| SY1336 | 100 | 80 | 1.15 | 2.7 | 2045 | 9300 |
| SY1337 | 110 | 85 | 1.15 | 3.1 | 2288 | 9000 |
| SY1338 | 110 | 90 | 1.15 | 2.7 | 2590 | 10600 |
| SY1339 | 120 | 100 | 1.15 | 2.7 | 3241 | 11900 |