Silicone oil for dampering. Module 0.8, Number Of teeth: 11, Pitch circle 8.8, Pressure Angle 20, Resistance Range 30-200 gf.cm Silicone oil for dampering.Module 0.8, Number Of teeth: 11, Pitch circle 8.8, Pressure Angle 20, Resistance Range 30-200 gf.cm. Gear: POM, Shaft: POM, Support: PC, Cover: PC.The resistance torque can be customized.ISO9001, ISO14001, Meet RoHSstandard.Usage: make the ...