D620A LH Cast Iron Worm Gear Double Thread Click here for spec sheet:

Click here for spec sheet: SALF-H4 Spec Sheet

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Click here for spec sheet: UCFB Spec Sheet

Click here for spec sheet: SBLF-H4 Spec Sheet

the SNASTRS has an eccentric locking bearing insert

D620A LH Cast Iron Worm Gear Double Thread Click here for spec sheet:When used with Boston Gear worms, Boston Gears worm gears provide effective power transmission in applications requiring high ratio speed reduction in a limited space using right angle (90), non intersecting shafts. They are also the smoothest, quietest form of gearing when properly applied. Boston Gear offers worm gears manufactured from a variety of materials, such as acetal, minlon, bronze, and cast iron to suit your applications requirements.