• Since the worm is an hourglass worm, there are more teeth in continuous engagement
• The a tooth bearing is larger, and there are two instantaneous lines of contact, so the length of contact line is longer
• Easily establishing lubrication oil film, smaller friction coefficient, higher transmission coefficient, saving energy
• Large loading capacity under the same specification, compact dimension can be designed under the same transmitted power and the same transmission ratio
• The teeth of worm can be ground, and after nitriding, the tooth surface hardness is higher(HRC≥55), tooth surface roughness is lower(Ra≤0.8) and the tooth accuracy grade is higher
• Smoother functioning, lower noisiness and longer service life