Crown Block

  • The retaining bar can prevent drill line from jumping out of and jumping off sheave grooves.
  • Sheave grooves are medium-frequency induction hardened, prolonging the sheave service life.
  • Sheave bearings are lubricated individually with the grease cup at the shaft end.
  • Sheaves and bearings of the crown block may be interchanged with those of the traveling block.
  • ‚ÄčThe crown clocks conform to API Spec 8A /4F.
Product Specifications