Berges® F211.37sb Spring Tensioning PulleyBerges Spring Tensioning pulley type F211. 37sb interchange with Lenze Simplabelt size 11. 104. 30. 6. 1. for use with wide belts type CW b 37 and fixed diameter pulley, speed change achieved by changing center distance between sheaves. Diameter 220mm with length through bore of 130mm, one spring on each side of pulley for a total of two springs. Maximum shaft diameter 28mm with standard bores listed for sale, alternative bores are available contact
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