Specifications Precision grade JIS B 1704 grade 3 Core hardness HB165194 Gear teeth Gleason Surface hardness Pressure angle 20 Surface treatment Black oxide Material S45C (Carbon steel) Surface finish Cut Heat treatment - Datum reference surface for gear cutting Bore

B2 B3

16 Miter Module 25

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Mounting distance Total length Crown to back length Hub width Length of bore Face width Holding surface dia. Face angle Shape Allowable torque(kgfm) Allowable torque(Nm) Backlash (mm) Weight (kgf) Catalog No. m z A B C D E F G H I J K L Bending strength Surface durability Bending strength Surface durability SM2-16 [ DXF| DWG| 3D CAD] SM2.5-16 [ DXF| DWG| 3D CAD] SM3-16 [ DXF| DWG| 3D CAD] SM4-16 [ DXF| DWG| 3D CAD] SM5-16 [ DXF| DWG| 3D CAD] 2 2.5 3 4 5 16 16 16 16 16 10 12 14 16 20 27 34 42 55 70 32 40 48 64 80 34.83 43.53 52.24 69.66 87.07 30 35 40 50 65 19 21 23 28 37 15.41 16.77 18.12 20.83 28.53 11.5 12 13 13.5 20 19 21 23 28 37 7 9 11 14 17 - - - - - 5100' 5100' 5100' 5100' 5100' B2 B2 B2 B2 B2 0.3913 0.778 1.36 3.131 6.002 0.0339 0.069 0.1231 0.2923 0.5728 3.837 7.629 13.34 30.7 58.86 0.3324 0.6767 1.207 2.866 5.617 0.060.16 0.070.17 0.080.18 0.120.27 0.140.34 0.09 0.13 0.22 0.48 1 SM2-16 SM2.5-16 SM3-16 SM4-16 SM5-16

Pitch Angle 45

20 Miter Module 18

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Mounting distance Total length Crown to back length Hub width Length of bore Face width Holding surface dia. Face angle Shape Allowable torque(kgfm) Allowable torque(Nm) Backlash (mm) Weight (kgf) Catalog No. m z A B C D E F G H I J K L Bending strength Surface durability Bending strength Surface durability SM1-20 [ DXF| DWG| 3D CAD] SM1.25-20 [ DXF| DWG| 3D CAD] SM1.5-20 [ DXF| DWG| 3D CAD] SM2-20 [ DXF| DWG| 3D CAD] SM2.5-20 [ DXF| DWG| 3D CAD] 1 1.25 1.5 2 2.5 20 20 20 20 20 6 8 8 12 14 16 22 26 34 42 20 25 30 40 50 21.41 26.77 32.12 42.83 53.54 20 23 30 37 48 13.94 15.27 21.24 24.89 32.54 10.71 11.38 16.06 18.41 24.77 8 9 13 14 19 12 13 19 22 29 5 6 8 10 12 9.86 13.03 15.37 21.72 28.06 4948' 4948' 4948' 4948' 4948' B3 B3 B3 B3 B3 0.0909 0.1734 0.3179 0.7271 1.387 0.0086 0.0166 0.031 0.0733 0.1435 0.8914 1.7 3.118 7.13 13.6 0.0843 0.1628 0.304 0.7188 1.407 0.030.13 0.040.14 0.050.15 0.060.16 0.070.17 0.02 0.04 0.07 0.15 0.3 SM1-20 SM1.25-20 SM1.5-20 SM2-20 SM2.5-20 SM3-20 [ DXF| DWG| 3D CAD] SM3.5-20 [ DXF| DWG| 3D CAD] SM4-20 [ DXF| DWG| 3D CAD] SM5-20 [ DXF | DWG| 3D CAD] SM6-20 [ DXF| DWG| 3D CAD] SM8-20 [ DXF| DWG| 3D CAD] 3 3.5 4 5 6 8 20 20 20 20 20 20 16 20 20 25 28 30 50 60 64 80 100 130 60 70 80 100 120 160 64.24 74.95 85.65 107.07 128.48 171.31 58 65 75 90 104 125 39.84 44.13 50.78 60.38 67.67 73.33 30.12 32.47 37.83 43.54 48.24 50.66 23 25 27 30 34 30 35 40 45 54 60 62 15 18 20 26 30 35 31.57 39.09 43.43 54.46 67.15 95 4948' 4948' 4948' 4948' 4948' 4948' B3 B3 B3 B3 B3 B3 2.454 3.959 5.817 11.61 19.44 42.07 0.2587 0.4236 0.6307 1.288 2.224 5.061 24.07 38.82 57.04 113.9 190.6 412.6 2.537 4.154 6.185 12.63 21.81 49.63 0.080.18 0.10.25 0.120.27 0.140.34 0.160.36 0.20.45 0.5 0.8 1.1 2.1 3.6 7.1 SM3-20 SM3.5-20 SM4-20 SM5-20 SM6-20 SM8-20

Pitch Angle 45

CAUTION:	Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
NOTE:	The allowable torques shown in the table are calculated according to JGMA Standards 403-01 and 404-01.
USEFUL HINT :	For additional tooth surface strength, these gears may be induction hardened to HRC4853 to increase the strength approximately four fold.

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