Products
| Specification | Pitch Length | Teeth Number | Specification | Pitch Length | Teeth Number | Specification | Pitch Length | Teeth Number |
| S2M-80 | 80.00 | 40 | S2M-180 | 180.00 | 90 | S2M-360 | 360.00 | 180 |
| S2M-88 | 88.00 | 44 | S2M-182 | 182.00 | 91 | S2M-370 | 370.00 | 185 |
| S2M-100 | 100.00 | 50 | S2M-190 | 190.00 | 95 | S2M-376 | 376.00 | 188 |
| S2M-112 | 112.00 | 56 | S2M-194 | 194.00 | 97 | S2M-400 | 400.00 | 200 |
| S2M-118 | 118.00 | 59 | S2M-200 | 200.00 | 100 | S2M-426 | 426.00 | 213 |
| S2M-120 | 120.00 | 60 | S2M-212 | 212.00 | 106 | S2M-440 | 440.00 | 220 |
| S2M-122 | 122.00 | 61 | S2M-224 | 224.00 | 112 | S2M-448 | 448.00 | 224 |
| S2M-124 | 124.00 | 62 | S2M-236 | 236.00 | 118 | S2M-452 | 452.00 | 226 |
| S2M-126 | 126.00 | 63 | S2M-240 | 240.00 | 120 | S2M-460 | 460.00 | 230 |
| S2M-130 | 130.00 | 65 | S2M-244 | 244.00 | 122 | S2M-492 | 492.00 | 246 |
| S2M-134 | 134.00 | 67 | S2M-248 | 248.00 | 124 | S2M-494 | 494.00 | 247 |
| S2M-138 | 138.00 | 69 | S2M-250 | 250.00 | 125 | S2M-500 | 500.00 | 250 |
| S2M-142 | 142.00 | 71 | S2M-260 | 260.00 | 130 | S2M-520 | 520.00 | 260 |
| S2M-144 | 144.00 | 72 | S2M-264 | 264.00 | 132 | S2M-560 | 560.00 | 280 |
| S2M-146 | 146.00 | 73 | S2M-280 | 280.00 | 140 | S2M-630 | 630.00 | 315 |
| S2M-152 | 152.00 | 76 | S2M-284 | 284.00 | 142 | S2M-710 | 710.00 | 355 |
| S2M-156 | 156.00 | 78 | S2M-288 | 288.00 | 144 | S2M-800 | 800.00 | 400 |
| S2M-160 | 160.00 | 80 | S2M-308 | 308.00 | 154 | S2M-900 | 900.00 | 450 |
| S2M-164 | 164.00 | 82 | S2M-322 | 322.00 | 161 | S2M-3000 | 3000.00 | 1500 |
| S2M-170 | 170.00 | 85 | S2M-320 | 320.00 | 160 | S2M-3672 | 3672.00 | 1836 |
| S2M-172 | 172.00 | 86 | S2M-354 | 354.00 | 177 |