Scroll type pump

A scroll type pump comprising:

• a housing,
• a driving scroll member disposed in said housing and composed of a first disc and a spiral first fluid compressing wall provided on one side surface of the first disc,
• a follower scroll member disposed in said housing and composed of a second disc and a spiral second fluid compressing wall provided on one side surface of the second disc to engage with said first fluid compressing wall, said spiral second fluid compressing wall defining an end spaced apart from the one side surface of the second disc, said follower scroll member being driven by said driving scroll member to rotate,
• a first bearing mounting part extending from said second disc to a predetermined position located on a side of said end of said spiral second fluid compressing wall with respect to a center of gravity of said follower scroll member,
• a first bearing mounted with respect to said first bearing mounting part,
• a second bearing mounting part extending from said second disc to a position which is opposed to said first bearing mounting part, with said center of gravity of said follower scroll member being located between said first bearing mounting part and said second bearing mounting part,
• a second bearing mounted in said second bearing mounting part, and
• a supporting part for supporting rotation of said follower scroll member, said supporting part being fitted to at least said second bearing and being fixed to said housing.