Chinese Made Handcrank Set

 


Chinese made HA-1 hand cranks and balance wheels





Close up of Chinese crank, showing the casting irregularities

Balance wheel comparison between the Chinese HA-1 and a mid 20th century Singer wheel.
Typically the Chinese made balance wheel is about 100g heavier than the Singer, and being wider in profile, is not suitable to drop down cabinets.

The shaft is approx (to the nearest mm) Dia 20mm, depth 25mm. The pulley dia where the belt goes is 58mm and the dia of the outer wheel is 138mm. The profile measurement is approx 40mm

 
Showing the decals on the unmodified Chinese HA-1 Crank
 
 

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