  
| SIZE | RATIO | A | A1 | AB | AC | B | BB | BD | BE | BF | CC | H | HL | LL | Z | L | | 40 | 5:1 10:1 15:1 20:1 30:1 40:1
50:1 60:1 |
2.58 | | 3.78 | 3.94 | 1.85 | 3.31 | 2.68 | 2.13 | 3.15 | 1.575 | 5.00 | 1.34 | 2.09 | 5/16-18 | 0.63 | | 50 | 2.85 | | 4.13 | 4.48 | 2.08 | 3.82 | 2.72 | 1.97 | 3.54 | 1.969 | 5.91 | 1.38 | 2.56 | 5/16-8 | 0.63 | | 60 | 3.15 | | 4.72 | 5.00 | 2.20 | 4.33 | 2.99 | 2.13 | 3.94 | 2.362 | 6.97 | 1.65 | 2.95 | 3/8-16 | 0.75 | | 63 | 3.37 | | 5.08 | 5.51 | 2.36 | 4.45 | 3.46 | 2.69 | 4.87 | 2.480 | 7.32 | 1.89 | 2.95 | 3/8-16 | 0.75 | | 70 | 3.76 | | 5.51 | 6.10 | 2.52 | 5.12 | 3.31 | 2.56 | 4.92 | 2.756 | 8.46 | 2.16 | 3.54 | 3/8-16 | 0.75 | | 80 | 4.11 | | 6.30 | 6.69 | 2.85 | 5.51 | 3.94 | 2.76 | 5.51 | 3.150 | 9.84 | 2.56 | 4.13 | 3/8-16 | 0.75 | | 100 | 4.78 | | 7.00 | 8.03 | 3.33 | 6.42 | 4.49 | 3.54 | 7.09 | 3.937 | 12.20 | 3.15 | 5.12 | 1/2-13 | 0.94 | | 120 | 6.10 | 8.26 | 9.06 | 10.24 | 3.94 | 7.28 | 5.04 | 3.94 | 8.66 | 4.724 | 14.57 | 3.74 | 6.10 | 1/2-13 | 0.94 | | 135 | 6.89 | 9.06 | 10.24 | 11.65 | 4.33 | 8.27 | 5.91 | 4.33 | 10.24 | 5.315 | 16.73 | 4.13 | 7.28 | 5/8-11 | 1.13 | | 155 | 7.64 | 10.24 | 11.89 | 12.99 | 5.20 | 9.92 | 6.69 | 4.72 | 11.02 | 6.102 | 18.15 | 4.05 | 7.99 | 5/8-11 | 1.13 | | 175 | 8.78 | 11.42 | 12.80 | 14.57 | 5.71 | 10.31 | 7.32 | 5.51 | 12.60 | 6.890 | 20.51 | 4.84 | 8.78 | 3/4-10 | 1.38 | | 200 | 9.61 | 12.60 | 13.78 | 16.30 | 6.89 | 12.01 | 9.06 | 5.91 | 14.17 | 7.874 | 22.64 | 5.12 | 9.65 | 3/4-10 | 1.38 |
| SIZE | Input Shaft | Output Shaft | With Horizontal Base | | U | HS | T×V | S | LS | W×Y | E | F | M | N | G | X | | 40 | 0.500 | 1.10 | 1/8×1/16 | 0.625 | 1.38 | 3/16×3/32 | 3.54 | 3.94 | 4.33 | 4.92 | 0.51 | 0.39 | | 50 | 0.625 | 1.18 | 3/16×3/32 | 0.750 | 1.57 | 3/16×3/32 | 3.74 | 4.33 | 4.72 | 5.51 | 0.59 | 0.43 | | 60 | 0.750 | 1.57 | 3/16×3/32 | 1.000 | 1.97 | 1/4×1/8 | 4.13 | 4.72 | 5.12 | 5.91 | 0.71 | 0.43 | | 63 | 0.750 | 1.57 | 3/16×3/32 | 1.000 | 1.97 | 1/4×1/8 | 4.33 | 5.91 | 5.51 | 7.09 | 0.71 | 0.43 | | 70 | 0.875 | 1.57 | 3/16×3/32 | 1.125 | 2.36 | 1/4×1/8 | 4.53 | 5.91 | 5.91 | 7.48 | 0.71 | 0.59 | | 80 | 1.125 | 1.97 | 1/4×1/8 | 1.375 | 2.56 | 5/16×5/32 | 5.31 | 7.09 | 6.69 | 8.66 | 0.71 | 0.59 | | 100 | 1.375 | 1.97 | 5/16×5/32 | 1.500 | 2.95 | 3/8×3/16 | 6.10 | 8.66 | 7.48 | 10.63 | 0.79 | 0.59 | | 120 | 1.500 | 2.56 | 3/8×3/16 | 1.750 | 3.35 | 3/8×3/16 | 7.09 | 10.24 | 9.06 | 12.60 | 0.98 | 0.71 | | 135 | 1.625 | 2.95 | 3/8×3/16 | 2.250 | 3.74 | 1/2×1/4 | 7.87 | 11.42 | 9.84 | 13.78 | 1.18 | 0.71 | | 155 | 1.625 | 3.35 | 3/8×3/15 | 2.500 | 4.33 | 5/8×5/16 | 8.66 | 12.60 | 11.02 | 14.96 | 1.26 | 0.79 | | 175 | 1.875 | 3.35 | 1/2×1/4 | 2.750 | 4.33 | 5/8×5/16 | 9.84 | 13.78 | 12.20 | 16.14 | 1.46 | 0.79 | | 200 | 2.000 | 3.74 | 1/2×1/4 | 2.875 | 4.92 | 3/4×3/8 | 11.42 | 13.78 | 14.17 | 17.13 | 1.77 | 0.87 | |
