3/8 Pitch Timing Belt Pulley Flanges
Aluminum

| Aluminum Part # |
Steel Part # |
# Grooves |
Inside Dia ±0.003 |
Outside Dia ±0.015 |
| 10-LFA |
10-LFS |
10 |
0.976 |
1.438 |
| 11-LFA |
11-FLS |
11 |
1.101 |
1.531 |
| 12-LFA |
12-LFS |
12 |
1.226 |
1.656 |
| 13-LFA |
13-LFS |
13 |
1.276 |
1.781 |
| 14-LFA |
14-LFS |
14 |
1.401 |
1.906 |
| 15-LFA |
15-LFS |
15 |
1.521 |
2.032 |
| 16-LFA |
16-LFS |
16 |
1.578 |
2.125 |
| 17-LFA |
17-LFS |
17 |
1.701 |
2.250 |
| 18-LFA |
18-LFS |
18 |
1.824 |
2.375 |
| 19-LFA |
19-LFS |
19 |
1.910 |
2.500 |
| 20-LFA |
20-LFS |
20 |
2.035 |
2.625 |
| 21-LFA |
21-LFS |
21 |
2.120 |
2.750 |
| 22-LFA |
22-LFS |
22 |
2.241 |
2.875 |
| 24-LFA |
24-LFS |
24 |
2.375 |
3.093 |