Specifications Precision grade JIS B 1704 grade 4 Core hardness HB115120 Gear teeth Gleason Surface hardness Pressure angle 20 Surface treatment - Material Duracon (M90-44) Surface finish Injection molded Heat treatment - Datum reference surface for teeth Bore

B1

20 Miter Module 0.51.5

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 DM0.5-20 [ DXF|DWG | 3D CAD] DM0.8-20 [ DXF|DWG | 3D CAD] DM1-20 [ DXF|DWG | 3D CAD] DM1.5-20 [ DXF|DWG | 3D CAD] 0.5 0.8 1 1.5 20 20 20 20 3 5 6 8 8 12 16 20 10 16 20 30 10.71 17.13 21.41 32.12 11 16 21 30 7.97 10.83 14.62 20.59 6.35 8.56 11.71 16.06 4 5 7 10 7 10 13 19 2.5 3.5 4.5 7 4.93 10.1 11.27 18.2 4948' 4948' 4948' 4948' B1 B1 B1 B1 0.0102 0.0356 0.0614 0.1078 - - - - 0.1 0.3491 0.6021 1.057 - - - - 0.040.14 0.060.16 0.080.18 0.10.2 1 2 4 13 DM0.5-20 DM0.8-20 DM1-20 DM1.5-20

Pitch Angle 45

NOTE:	The bore tolerance is generally -0.05 to -0.1 but may be + values at the central portion of the hole. Re-machining the bore is not recommended since reworking material may expose voids.
NOTE:	The allowable torque show in the table are the calculated values using the Lewis formula.

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