Hunt Boston Electric Pencil Sharpener Model 18 and 19 replacement plastic helical gear 70 teeth.Also fit X-acto 18xx and 19xx series sharpeners This fine Nylon gear has improved design 6mm wide face for better durability and performanceOur gear is 20% thicker compare to OEM and other replacementsIt fit snugly and won’t slip of the shaft thanks to fine tuned center hole configuration and 15 degree Helical teeth angle Made out of Nylon – tough and flexible plasticNylon naturally slippery, no lubrication on gear teeth required!We recommend 1 drop of machine oil on to the cutter shaft though. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Only Nylons should be used for gears where a slippery surface is desired. All other materials (PLA, ABS, PET, etc.) will grind creating a plastic dust and eventually fail! For details, please review all pictures, or you can find installation videos on YouTube We subsidize shipping cost Material Nylon 70 tooth Diameter 53.8mm Hub width 8.2mm Do not waste your money on ABS or PLA plastic gear that may strip or even melt! If your Boston 19 sharpener has inner gear stripped (incorporated in to ABS plastic frame)Please visit our other listing for a model 19 inner gear guide Sharpener is not included – image is for reference only Thanks for reading.
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Improved Nylon replace gear Hunt Boston model 17 electric pencil sharpener 296A
Hunt Boston Electric Pencil Sharpener Model 17 replacement Nylon helical gear It is FDM made Nylon improved design gear has a 20% wider face (6mm) for better durability and reliable performance.Gear face is 20% wider compare to OEM and other replacements.It is made out of Nylon – tough and flexible plastic.Nylon is naturally slippery – no lubrication on gear teeth required.Only Nylons should be used for gears where a slippery surface is desired. All other materials (PLA, ABS, PET-G, etc.) will grind each other to dust and eventually fail. Do not waste money for ABS, PLA plastic gear that may strip or melt For details and to compare, please review all pictures.Please lubricate the cutter shaft. Gear specificationsTooth count 58 Diameter: 44.4mm (1-3/4″) Hub width 8.2mm (1/3″)It fits cutting assembly shaft snugly, no clip required! Also fit Panasonic KP-22A sharpener This gear purposely made 20% thicker so it won’t break like original did. It fit snugly and won’t slip of the shaft thanks to a 15 degree helical angle. Ruining motor pushes gear on to the shaft. Gear designed to be installed without the clip. Manufacturer omitted holding clip on later models.Thanks for reading.