Below the Hook
Product Glossary

Use our Below the Hook Product Glossary to enhance your understanding of the terminology associated with our Below the Hook products.

Below the Hook Product Glossary

  • Adjustable Bail: Allows the bail to move left or right of the center of the lifter.
  • Auto-Latch: Used as a mechanical hold in the open position.
  • Bail: A mounting point on a lifter that attaches the top of a lifter directly to a hoist or crane hook.
  • Parking Stand: Used to store a lifter when not in use.
  • Center of Gravity (CG): Is the location of the balance point of a load.
  • Certificate of Compliance: A document signed by an authorized representative of a manufacturer, certifying that a product or batch of products was manufactured in accordance with all other applicable laws and specifications.
  • Certificate of Conformance: A document issued by an authorized party or manufacturer and states that the product meets the required standards or specifications.
  • Certificate of Proof Test: Document that certifies a load test was performed on a lifter.
  • Chain Top Rigging: Multiple leg chain sling attached to the bails on a lifter brought together as a single lifting point on the lifter.
  • Chain Wheel: A pocketed wheel that meshes with a chain to transmit motion.
  • Chamfered Drill Holes: A beveled edge around the hole.
  • Counter Balance: A weight added to a lifter designed to balance the lifter and the load.
  • Counter Weight: A weight added to balance a lifter.
  • Direct Drive: When mechanical parts are driven directly by a motor, without a belt or chain to transmit power.
  • Drop Chains: Chain slings added to the lower lifting lugs.
  • Gusset: Steel plates used for strengthening the structure of a lifter.
  • Headroom: The amount of vertical lift necessary to make and complete a lifting scenario. Considering all things like, the product that is to be lifted, the device doing the lifting, and the amount of free travel space from the crane hoist hook.
  • H-Frame Design: A structural lifter designed in the shape of the letter “H”.
  • Integrated Beam Stand: A stand built into a lifter used for proper storage of the lifter.
  • Keyed-In Bail: When a bail fits into a slot cut into the top of the lifter and is welded above and below.
  • Keyed-In Lug: When a lug fits into a slot cut into the bottom of the lifter and is welded above and below.
  • Load Pins: Pin used to attach rigging to a lifter.
  • Low Headroom Bail: Our standard plate bail welded to the top of a lifter.
  • Lug: The point on a lifter that attaches the lower rigging to the lifter.
  • Machined Bail: A bail that has a machined radius designed to reduce wear on the saddle of a hoist or crane hook.
  • Machined Rack and Pinion Adjustment: A machined linear mechanism that is comprised of a circular gear (pinion) that engages with a linear gear (rack).
  • Off-Center Load: Occurs when the balance point of an object is not located directly in the center of the load.
  • Pin Style Bail w/Taper: A pin mounted between two gussets designed to provide an easier fit to larger crane hooks, a taper is machined into the pin used to center the hook.
  • Proof Testing to 125%: of Rated Capacity a load at 125% of the rated capacity of a lifter is applied to demonstrate the fitness of the lifter.
  • Recessed Counter Weight: A counter weight that is moved closer to the bail used to reduce overall length of the lifter.
  • Self-Locking: A lifter or component of that automatically fixes itself in an open or closed position.
  • Shackle Lug: A mounting point on a lifter that attaches a lifting shackle used connect the bottom of the lifter to the load.