QC back gears TPI "-pitch metric-pitch A-1 40x127x40 (D) 4.000 0.2500 6.3500 A-2 40x127x40 (D) 4.500 0.2222 5.6444 A-3 40x127x40 (D) 5.000 0.2000 5.0800 A-1 30x127x40 (?2) 5.333 0.1875 4.7625 A-4 40x127x40 (D) 5.500 0.1818 4.6182 A-5 40x127x40 (D) 5.750 0.1739 4.4174 A-6 40x127x40 (D) 6.000 0.1667 4.2333 A-2 30x127x40 (?2) 6.000 0.1667 4.2333 A-7 40x127x40 (D) 6.500 0.1538 3.9077 A-3 30x127x40 (?2) 6.667 0.1500 3.8100 A-8 40x127x40 (D) 7.000 0.1429 3.6286 A-4 30x127x40 (?2) 7.333 0.1364 3.4636 A-5 30x127x40 (?2) 7.667 0.1304 3.3130 B-1 40x127x40 (D) 8.000 0.1250 3.1750 A-6 30x127x40 (?2) 8.000 0.1250 3.1750 A-7 30x127x40 (?2) 8.667 0.1154 2.9308 B-2 40x127x40 (D) 9.000 0.1111 2.8222 A-8 30x127x40 (?2) 9.333 0.1071 2.7214 B-3 40x127x40 (D) 10.000 0.1000 2.5400 B-1 30x127x40 (?2) 10.667 0.0938 2.3812 B-4 40x127x40 (D) 11.000 0.0909 2.3091 B-5 40x127x40 (D) 11.500 0.0870 2.2087 B-2 30x127x40 (?2) 12.000 0.0833 2.1167 B-6 40x127x40 (D) 12.000 0.0833 2.1167 B-7 40x127x40 (D) 13.000 0.0769 1.9538 B-3 30x127x40 (?2) 13.333 0.0750 1.9050 B-8 40x127x40 (D) 14.000 0.0714 1.8143 B-4 30x127x40 (?2) 14.667 0.0682 1.7318 B-5 30x127x40 (?2) 15.333 0.0652 1.6565 B-6 30x127x40 (?2) 16.000 0.0625 1.5875 C-1 40x127x40 (D) 16.000 0.0625 1.5875 B-7 30x127x40 (?2) 17.333 0.0577 1.4654 C-2 40x127x40 (D) 18.000 0.0556 1.4111 B-8 30x127x40 (?2) 18.667 0.0536 1.3607 C-3 40x127x40 (D) 20.000 0.0500 1.2700 C-1 30x127x40 (?2) 21.333 0.0469 1.1906 C-4 40x127x40 (D) 22.000 0.0455 1.1545 C-5 40x127x40 (D) 23.000 0.0435 1.1043 C-6 40x127x40 (D) 24.000 0.0417 1.0583 C-2 30x127x40 (?2) 24.000 0.0417 1.0583 C-7 40x127x40 (D) 26.000 0.0385 0.9769 C-3 30x127x40 (?2) 26.667 0.0375 0.9525 C-8 40x127x40 (D) 28.000 0.0357 0.9071 C-4 30x127x40 (?2) 29.333 0.0341 0.8659 C-5 30x127x40 (?2) 30.667 0.0326 0.8283 D-1 40x127x40 (D) 32.000 0.0313 0.7937 C-6 30x127x40 (?2) 32.000 0.0313 0.7937 C-7 30x127x40 (?2) 34.667 0.0288 0.7327 D-2 40x127x40 (D) 36.000 0.0278 0.7056 C-8 30x127x40 (?2) 37.333 0.0268 0.6804 D-3 40x127x40 (D) 40.000 0.0250 0.6350 D-1 30x127x40 (?2) 42.667 0.0234 0.5953 D-4 40x127x40 (D) 44.000 0.0227 0.5773 D-5 40x127x40 (D) 46.000 0.0217 0.5522 D-6 40x127x40 (D) 48.000 0.0208 0.5292 D-2 30x127x40 (?2) 48.000 0.0208 0.5292 D-7 40x127x40 (D) 52.000 0.0192 0.4885 D-3 30x127x40 (?2) 53.333 0.0188 0.4763 D-8 40x127x40 (D) 56.000 0.0179 0.4536 D-4 30x127x40 (?2) 58.667 0.0170 0.4330 D-5 30x127x40 (?2) 61.333 0.0163 0.4141 D-6 30x127x40 (?2) 64.000 0.0156 0.3969 E-1 40x127x40 (D) 64.000 0.0156 0.3969 D-7 30x127x40 (?2) 69.333 0.0144 0.3663 E-2 40x127x40 (D) 72.000 0.0139 0.3528 D-8 30x127x40 (?2) 74.667 0.0134 0.3402 E-3 40x127x40 (D) 80.000 0.0125 0.3175 E-1 30x127x40 (?2) 85.333 0.0117 0.2977 E-4 40x127x40 (D) 88.000 0.0114 0.2886 E-5 40x127x40 (D) 92.000 0.0109 0.2761 E-6 40x127x40 (D) 96.000 0.0104 0.2646 E-2 30x127x40 (?2) 96.000 0.0104 0.2646 E-7 40x127x40 (D) 104.000 0.0096 0.2442 E-3 30x127x40 (?2) 106.667 0.0094 0.2381 E-8 40x127x40 (D) 112.000 0.0089 0.2268 E-4 30x127x40 (?2) 117.333 0.0085 0.2165 E-5 30x127x40 (?2) 122.667 0.0082 0.2071 E-6 30x127x40 (?2) 128.000 0.0078 0.1984 E-7 30x127x40 (?2) 138.667 0.0072 0.1832 E-8 30x127x40 (?2) 149.333 0.0067 0.1701 A-1 40x120x127x40 (?1) 3.780 0.2646 6.7204 A-1 40x127x120x40 (M1) 4.233 0.2362 6.0000 A-2 40x120x127x40 (?1) 4.252 0.2352 5.9737 A-3 40x120x127x40 (?1) 4.724 0.2117 5.3763 A-2 40x127x120x40 (M1) 4.762 0.2100 5.3333 A-1 30x120x127x40 (?3) 5.039 0.1984 5.0403 A-4 40x120x127x40 (?1) 5.197 0.1924 4.8876 A-3 40x127x120x40 (M1) 5.292 0.1890 4.8000 A-5 40x120x127x40 (?1) 5.433 0.1841 4.6751 A-1 30x127x120x40 (M2) 5.644 0.1772 4.5000 A-6 40x120x127x40 (?1) 5.669 0.1764 4.4803 A-2 30x120x127x40 (?3) 5.669 0.1764 4.4803 A-4 40x127x120x40 (M1) 5.821 0.1718 4.3636 A-5 40x127x120x40 (M1) 6.085 0.1643 4.1739 A-7 40x120x127x40 (?1) 6.142 0.1628 4.1356 A-3 30x120x127x40 (?3) 6.299 0.1587 4.0322 A-6 40x127x120x40 (M1) 6.350 0.1575 4.0000 A-2 30x127x120x40 (M2) 6.350 0.1575 4.0000 A-8 40x120x127x40 (?1) 6.614 0.1512 3.8402 A-7 40x127x120x40 (M1) 6.879 0.1454 3.6923 A-4 30x120x127x40 (?3) 6.929 0.1443 3.6657 A-3 30x127x120x40 (M2) 7.056 0.1417 3.6000 A-5 30x120x127x40 (?3) 7.244 0.1380 3.5063 A-8 40x127x120x40 (M1) 7.408 0.1350 3.4286 B-1 40x120x127x40 (?1) 7.559 0.1323 3.3602 A-6 30x120x127x40 (?3) 7.559 0.1323 3.3602 A-4 30x127x120x40 (M2) 7.761 0.1288 3.2727 A-5 30x127x120x40 (M2) 8.114 0.1232 3.1304 A-7 30x120x127x40 (?3) 8.189 0.1221 3.1017 B-1 40x127x120x40 (M1) 8.467 0.1181 3.0000 A-6 30x127x120x40 (M2) 8.467 0.1181 3.0000 B-2 40x120x127x40 (?1) 8.504 0.1176 2.9869 A-8 30x120x127x40 (?3) 8.819 0.1134 2.8802 A-7 30x127x120x40 (M2) 9.172 0.1090 2.7692 B-3 40x120x127x40 (?1) 9.449 0.1058 2.6882 B-2 40x127x120x40 (M1) 9.525 0.1050 2.6667 A-8 30x127x120x40 (M2) 9.878 0.1012 2.5714 B-1 30x120x127x40 (?3) 10.079 0.0992 2.5202 B-4 40x120x127x40 (?1) 10.394 0.0962 2.4438 B-3 40x127x120x40 (M1) 10.583 0.0945 2.4000 B-5 40x120x127x40 (?1) 10.866 0.0920 2.3375 B-1 30x127x120x40 (M2) 11.289 0.0886 2.2500 B-6 40x120x127x40 (?1) 11.339 0.0882 2.2401 B-2 30x120x127x40 (?3) 11.339 0.0882 2.2401 B-4 40x127x120x40 (M1) 11.642 0.0859 2.1818 B-5 40x127x120x40 (M1) 12.171 0.0822 2.0870 B-7 40x120x127x40 (?1) 12.283 0.0814 2.0678 B-3 30x120x127x40 (?3) 12.598 0.0794 2.0161 B-6 40x127x120x40 (M1) 12.700 0.0787 2.0000 B-2 30x127x120x40 (M2) 12.700 0.0787 2.0000 B-8 40x120x127x40 (?1) 13.228 0.0756 1.9201 B-7 40x127x120x40 (M1) 13.758 0.0727 1.8462 B-4 30x120x127x40 (?3) 13.858 0.0722 1.8328 B-3 30x127x120x40 (M2) 14.111 0.0709 1.8000 B-5 30x120x127x40 (?3) 14.488 0.0690 1.7532 B-8 40x127x120x40 (M1) 14.817 0.0675 1.7143 C-1 40x120x127x40 (?1) 15.118 0.0661 1.6801 B-6 30x120x127x40 (?3) 15.118 0.0661 1.6801 B-4 30x127x120x40 (M2) 15.522 0.0644 1.6364 B-5 30x127x120x40 (M2) 16.228 0.0616 1.5652 B-7 30x120x127x40 (?3) 16.378 0.0611 1.5509 B-6 30x127x120x40 (M2) 16.933 0.0591 1.5000 C-1 40x127x120x40 (M1) 16.933 0.0591 1.5000 C-2 40x120x127x40 (?1) 17.008 0.0588 1.4934 B-8 30x120x127x40 (?3) 17.638 0.0567 1.4401 B-7 30x127x120x40 (M2) 18.344 0.0545 1.3846 C-3 40x120x127x40 (?1) 18.898 0.0529 1.3441 C-2 40x127x120x40 (M1) 19.050 0.0525 1.3333 B-8 30x127x120x40 (M2) 19.756 0.0506 1.2857 C-1 30x120x127x40 (?3) 20.157 0.0496 1.2601 C-4 40x120x127x40 (?1) 20.787 0.0481 1.2219 C-3 40x127x120x40 (M1) 21.167 0.0472 1.2000 C-5 40x120x127x40 (?1) 21.732 0.0460 1.1688 C-1 30x127x120x40 (M2) 22.578 0.0443 1.1250 C-6 40x120x127x40 (?1) 22.677 0.0441 1.1201 C-2 30x120x127x40 (?3) 22.677 0.0441 1.1201 C-4 40x127x120x40 (M1) 23.283 0.0429 1.0909 C-5 40x127x120x40 (M1) 24.342 0.0411 1.0435 C-7 40x120x127x40 (?1) 24.567 0.0407 1.0339 C-3 30x120x127x40 (?3) 25.197 0.0397 1.0081 C-2 30x127x120x40 (M2) 25.400 0.0394 1.0000 C-6 40x127x120x40 (M1) 25.400 0.0394 1.0000 C-8 40x120x127x40 (?1) 26.457 0.0378 0.9601 C-7 40x127x120x40 (M1) 27.517 0.0363 0.9231 C-4 30x120x127x40 (?3) 27.717 0.0361 0.9164 C-3 30x127x120x40 (M2) 28.222 0.0354 0.9000 C-5 30x120x127x40 (?3) 28.976 0.0345 0.8766 C-8 40x127x120x40 (M1) 29.633 0.0337 0.8571 C-6 30x120x127x40 (?3) 30.236 0.0331 0.8401 D-1 40x120x127x40 (?1) 30.236 0.0331 0.8401 C-4 30x127x120x40 (M2) 31.044 0.0322 0.8182 C-5 30x127x120x40 (M2) 32.456 0.0308 0.7826 C-7 30x120x127x40 (?3) 32.756 0.0305 0.7754 D-1 40x127x120x40 (M1) 33.867 0.0295 0.7500 C-6 30x127x120x40 (M2) 33.867 0.0295 0.7500 D-2 40x120x127x40 (?1) 34.016 0.0294 0.7467 C-8 30x120x127x40 (?3) 35.276 0.0283 0.7200 C-7 30x127x120x40 (M2) 36.689 0.0273 0.6923 D-3 40x120x127x40 (?1) 37.795 0.0265 0.6720 D-2 40x127x120x40 (M1) 38.100 0.0262 0.6667 C-8 30x127x120x40 (M2) 39.511 0.0253 0.6429 D-1 30x120x127x40 (?3) 40.315 0.0248 0.6300 D-4 40x120x127x40 (?1) 41.575 0.0241 0.6109 D-3 40x127x120x40 (M1) 42.333 0.0236 0.6000 D-5 40x120x127x40 (?1) 43.465 0.0230 0.5844 D-1 30x127x120x40 (M2) 45.156 0.0221 0.5625 D-6 40x120x127x40 (?1) 45.354 0.0220 0.5600 D-2 30x120x127x40 (?3) 45.354 0.0220 0.5600 D-4 40x127x120x40 (M1) 46.567 0.0215 0.5455 D-5 40x127x120x40 (M1) 48.683 0.0205 0.5217 D-7 40x120x127x40 (?1) 49.134 0.0204 0.5170 D-3 30x120x127x40 (?3) 50.394 0.0198 0.5040 D-6 40x127x120x40 (M1) 50.800 0.0197 0.5000 D-2 30x127x120x40 (M2) 50.800 0.0197 0.5000 D-8 40x120x127x40 (?1) 52.913 0.0189 0.4800 D-7 40x127x120x40 (M1) 55.033 0.0182 0.4615 D-4 30x120x127x40 (?3) 55.433 0.0180 0.4582 D-3 30x127x120x40 (M2) 56.444 0.0177 0.4500 D-5 30x120x127x40 (?3) 57.953 0.0173 0.4383 D-8 40x127x120x40 (M1) 59.267 0.0169 0.4286 E-1 40x120x127x40 (?1) 60.472 0.0165 0.4200 D-6 30x120x127x40 (?3) 60.472 0.0165 0.4200 D-4 30x127x120x40 (M2) 62.089 0.0161 0.4091 D-5 30x127x120x40 (M2) 64.911 0.0154 0.3913 D-7 30x120x127x40 (?3) 65.512 0.0153 0.3877 E-1 40x127x120x40 (M1) 67.733 0.0148 0.3750 D-6 30x127x120x40 (M2) 67.733 0.0148 0.3750 E-2 40x120x127x40 (?1) 68.032 0.0147 0.3734 D-8 30x120x127x40 (?3) 70.551 0.0142 0.3600 D-7 30x127x120x40 (M2) 73.378 0.0136 0.3462 E-3 40x120x127x40 (?1) 75.591 0.0132 0.3360 E-2 40x127x120x40 (M1) 76.200 0.0131 0.3333 D-8 30x127x120x40 (M2) 79.022 0.0127 0.3214 E-1 30x120x127x40 (?3) 80.630 0.0124 0.3150 E-4 40x120x127x40 (?1) 83.150 0.0120 0.3055 E-3 40x127x120x40 (M1) 84.667 0.0118 0.3000 E-5 40x120x127x40 (?1) 86.929 0.0115 0.2922 E-1 30x127x120x40 (M2) 90.311 0.0111 0.2813 E-6 40x120x127x40 (?1) 90.709 0.0110 0.2800 E-2 30x120x127x40 (?3) 90.709 0.0110 0.2800 E-4 40x127x120x40 (M1) 93.133 0.0107 0.2727 E-5 40x127x120x40 (M1) 97.367 0.0103 0.2609 E-7 40x120x127x40 (?1) 98.268 0.0102 0.2585 E-3 30x120x127x40 (?3) 100.787 0.0099 0.2520 E-6 40x127x120x40 (M1) 101.600 0.0098 0.2500 E-2 30x127x120x40 (M2) 101.600 0.0098 0.2500 E-8 40x120x127x40 (?1) 105.827 0.0094 0.2400 E-7 40x127x120x40 (M1) 110.067 0.0091 0.2308 E-4 30x120x127x40 (?3) 110.866 0.0090 0.2291 E-3 30x127x120x40 (M2) 112.889 0.0089 0.2250 E-5 30x120x127x40 (?3) 115.906 0.0086 0.2191 E-8 40x127x120x40 (M1) 118.533 0.0084 0.2143 E-6 30x120x127x40 (?3) 120.945 0.0083 0.2100 E-4 30x127x120x40 (M2) 124.178 0.0081 0.2045 E-5 30x127x120x40 (M2) 129.822 0.0077 0.1957 E-7 30x120x127x40 (?3) 131.024 0.0076 0.1939 E-6 30x127x120x40 (M2) 135.467 0.0074 0.1875 E-8 30x120x127x40 (?3) 141.102 0.0071 0.1800 E-7 30x127x120x40 (M2) 146.756 0.0068 0.1731 E-8 30x127x120x40 (M2) 158.044 0.0063 0.1607