Main shaft sleeve made from abrasion-resistant beryllium copper. The M30 Mini Retro Steam Engine Model is a vertical double-cylinder reciprocating double-acting steam engine equipped with a flyball speed reducer.
M30 3.7CC Mini Retro Vertical Double-cylinder Double-acting Steam Engine Model
M30 3.7CC Mini Retro Vertical Double-Cylinder Steam Engine Model Speed Reducer
M30 3.7cc Mini Vertical Double Cylinder Steam Engine Model with Speed Reducer
M30 3.7CC Vertical Retro 2-Cyl Double-Acting Steam Engine Model w/ Speed Reducer
