diameters to achieve the same gear ratio.
number relationships.
#35 #219
15 tooth = 18 tooth
16 tooth = 19, 20 tooth
17 tooth = 20, 21 tooth
18 tooth = 22 tooth
19 tooth = 23 tooth
| #35 | #219 |
| 15-54 = 3.60 | 18-65 = 3.61 |
| 16-54 = 3.38 | 19-64 = 3.37 20-67 = 3.35 |
| 17-54 = 3.18 | 20-64 = 3.20 21-67 = 3.19 (closer) |
| 18-54 = 3.00 | 22-66 = 3.00 |
| 19-54 = 2.84 | 23-65 = 2.82 |
Pitch diameters are measured approximately half way between the bottom and
the top of each tooth at pin centerline.
| 15-54 1.80" - 6.45" |
= 18-65 1.77" - 6.38" |
|
| 16-54 1.92" - 6.45" |
= 19-64 1.87" - 6.27" |
or 20-67 1.97" - 6.57" |
| 17-54 2.04" - 6.45" |
= 20-64 1.97" - 6.27" |
or 21-67 2.07" - 6.57" |
|
18-54 2.16" - 6.45" |
= 22-66 2.16" - 6.47" |
#35 vs #219 Ratio & Pitch Diameters
| # of Teeth | # 35 | #219 | 8 mm |
| 10 | 1.2135" | 0.9967" | 1.0194" |
| 11 | 1.3311 | 1.0932 | 1.1181 |
| 12 | 1.4489 | 1.19 | 1.2171 |
| 13 | 1.567 | 1.287 | 1.3163 |
| 14 | 1.6852 | 1.3841 | 1.4156 |
| 15 | 1.8037 | 1.4814 | 1.5151 |
| 16 | 1.9222 | 1.5788 | 1.6146 |
| 17 | 2.0408 | 1.6762 | 1.7143 |
| 18 | 2.1595 | 1.7737 | 1.814 |
| 19 | 2.2783 | 1.8713 | 1.9138 |
| 20 | 2.3972 | 1.9689 | 2.0136 |
| 21 | 2.5161 | 2.0665 | 2.1135 |
| 22 | 2.635 | 2.1642 | 2.2134 |
| 23 | 2.754 | 2.2619 | 2.3133 |
| 24 | 2.873 | 2.3597 | 2.4133 |
| 25 | 2.992 | 2.4575 | 2.5133 |
| 26 | 3.1111 | 2.5552 | 2.6133 |
| 27 | 3.2302 | 2.653 | 2.7133 |
| 53 | 6.3301 | 5.1991 | 5.3173 |
| 54 | 6.4494 | 5.2971 | 5.4175 |
| 55 | 6.5687 | 5.3951 | 5.5177 |
| 56 | 6.688 | 5.4931 | 5.6179 |
| 57 | 6.8073 | 5.5911 | 5.7182 |
| 58 | 6.9266 | 5.6891 | 5.8184 |
| 59 | 7.0459 | 5.7871 | 5.9186 |
| 60 | 7.1653 | 5.8851 | 6.0188 |
| 61 | 7.2846 | 5.9831 | 6.119 |
| 62 | 7.4039 | 6.0811 | 6.2193 |
| 63 | 7.5232 | 6.1791 | 6.3195 |
| 64 | 7.6425 | 6.2771 | 6.4197 |
| 65 | 7.7618 | 6.3751 | 6.5199 |
| 66 | 7.8812 | 6.4731 | 6.6202 |
| 67 | 8.0005 | 6.5711 | 6.7204 |
| 68 | 8.1198 | 6.6691 | 6.8206 |
| 69 | 8.2391 | 6.7671 | 6.9209 |
| 70 | 8.3584 | 6.8651 | 7.0211 |
| 71 | 8.4778 | 6.9631 | 7.1213 |
| 72 | 8.5971 | 7.0611 | 7.2216 |
| 73 | 8.7164 | 7.1591 | 7.3218 |
| 74 | 8.8358 | 7.2571 | 7.422 |
| 75 | 8.9551 | 7.3551 | 7.5223 |
| 76 | 9.0744 | 7.4531 | 7.6225 |
| 77 | 9.1938 | 7.5511 | 7.7228 |
| 78 | 9.3131 | 7.6492 | 7.823 |
| 79 | 9.4324 | 7.7472 | 7.9232 |
| 80 | 9.5518 | 7.8452 | 8.0235 |
| 81 | 9.6711 | 7.9432 | 8.1237 |
| 82 | 9.7904 | 8.0412 | 8.224 |
| 83 | 9.9098 | 8.1392 | 8.3242 |
| 84 | 10.0291 | 8.2372 | 8.4245 |
| 85 | 10.1484 | 8.3353 | 8.5247 |
| 86 | 10.2678 | 8.4333 | 8.6249 |
| 87 | 10.3871 | 8.5313 | 8.7252 |
| 88 | 10.5065 | 8.6293 | 8.8254 |
| 89 | 10.6258 | 8.7273 | 8.9257 |
| 90 | 10.7451 | 8.8253 | 9.0259 |
Chart generated by TS Racing and SMC Clutches
