Balancing Weights Specifications

Help with Balancing Weights specifications:

Weight Types

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	Balancing / Dynamic Balancing Weight		Balancing or dynamic balancing weights are used to help balance rotating components or machinery. If not balanced properly, rotating components exhibit unbalanced centrifugal forces. In turn, this causes noise, wear, vibration, and premature component failure. There are many different types of balancing weights. Products include balancing correction weight kits, balancing clips, balancing c-clamps, balancing machine drive belts, and lead weights for balancing sheaves. Balancing weight suppliers can assist both commercial and industrial customers with selection and sizing. As a rule, the faster a component rotates, the more critical balancing weights become. Balancing clips vary by type and application. For example, squirrel cage balancing clips are slightly-curved balancing weights that are designed for balancing fans with curved blades. Backward-incline balancing clips are flat pieces of metal that are used to balance flat-bladed fans. They are usually made of spring steel or stainless steel. Steel balancing c-clamps are suitable for both squirrel cage fans and vane axial flow fans. They have a serrated surface that functions as a second set screw. Heavy-duty balancing c-clamps are balancing weights that are designed for outdoor environments where fan blades may rust or corrode. Balancing weights include air foil clips, devices which are designed for blowers. Throat size is the most important specification to consider. Typically, suppliers of air foil clips designate their products as narrow throat, wide throat, and extra-wide throat. Air foil clips may also be coated with polytetrafluoroethylene (PTFE) to provide chemical resistance. Other types of balancing weights include balancing machine drive belts, products which improve belt performance and reduce noise levels; and adhesive-backed lead weights for balancing sheaves, products which may be used to improve the performance of fan blades. Balancing correction weight kits may consist of many different types of products. For example, a balancing weight starter kit may include squirrel cage clips, steel c-clamps, airfoil clamps in both standard and extra-wide sizes, lead weights, and an adjustable carrying case. Balancing weights that come in kit form may also include products such as backward incline clips or squirrel cage clips. Replacement packages and specialized or custom balancing weights are also commonly available. Accessories may include wrenches and markers for indicating magnet locations.
	Counterweight / Counterbalance Weight		Counterweights are used to counterbalance an opposing mass in a linear or rotary motion system, allowing movement with lower driving forces.
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Mass / Weight Denomination

	Denomination		The mass or weight of the calibration or reference weight in metric (SI, GMS, grams or kilograms) or avoirdupois (English, Imperial, pounds or ounces) units.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Units or Measurement System
	Your choices are...
	Avoirdupois (Lbs., Oz.)		Avoirdupois weight units include pounds, ounces, and tons. Avoirdupois unit systems are sometimes called Imperial or English units, but avoirdupois is the typically terminology used for the weights and weighing industry.
	Metric (SI, g or kg)		Metric weight units include grams, kilograms, and metric tons. Avoirdupois unit systems are sometimes called as SI or GMS units system, but metric is the typically terminology used for the weights and weighing industry.
	Specialty / Other		Other unlisted, proprietary or specialized unit of weight such as pennyweight, grains, or troy ounces.
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Weight Type / Shape

	Shape
	Your choices are...
	Adhesive / Stick-on Weight		Stick-on weights have an adhesive layer or tape on one surface to allow bonding to a surface for balancing or weight adjustment.
	Bar / Rod Weight		Weights in the forms of bars or rods. Bar or rod-shaped weights are typically used as ballast, counter, or balancing weights.
	Block Weight / Brick		Weights in the forms of bars or rods. Brick shaped weights are typically used as ballast, counter, test or balancing weights. Block shaped weights are commonly used in calibration of higher capacity scales. Block weights often have a grip handle and are also called grip handle weights. Hock-style block calibration weights have a hook and are hung from a weight cart. Very heavy block weights are sometimes stackable. A weight cart or lift may be required to move very heavy block weights.
	Clamp-on / Split Weight		Weights in the form of a clamp-on or split construction. Clamp-on or split construction weights are design for use as ballast weights, sinking weights, pipeline weights, fishing line weights, and cable weights.
	Clip-on Weight		Clip-on weights are commonly used as balance or dynamic balancing weights on wheels or rotating spindles. The weights clip-on to the wheel or rim.
	Cylinder Weight		Weights in the form of a cylinder. Cylindrical shaped weights are often used as scale calibration weights.
	Fasten / Bolt-on Weight		Weight designed to bolt-on or fasten onto a ship, spindle, pipeline, or other component. Bolt-on weights are typically used as ballasts, balancing weights, counterweights, load test weights, and as other specialized weights.
	Leaf Weight		Weights in the forms of leaf or thin metal tab. Leaf-shaped weights are typically used as calibration weights. Leaf weights have very low denominations.
	Plate Weight		Weights in the form of metal plates. Plate-shaped weights are typically used as ballast, counter, test or balancing weights.
	Ring Weight		Weights in the forms of ring, toroid, or doughnut. Ring-shaped weights are typically used as inertial, test, counter, or balancing weights.
	Shot / Pellet Weight		Weights in the form of shot or pellets. Shot or pellet-shaped weights are typically used as ballast, counter, or balancing weights. They are also used for adjusting or correcting a reference weight by addition of shot to a cavity in the reference weight.
	Slotted Weight		Slotted weights have a disc shape with a slot from the center of to the outer diameter of the disc. Slotted weights are often used as test or load weights on mechanical testing equipment, hardness tester, creep or stress rupture testers, and other material testers. The slots allow weights to be added onto a rod shape hanger. Load or force application can be increased or decreased by adding or removing weights.
	Wire Weight		Weights in the form of metal wires. Wire-shaped weights are typically used as calibration weights. Wire weights have very low denominations.
	Specialty / Other		Other unlisted, proprietary, or specialized weight shape type.
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Materials

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	Aluminum		Weight manufactured from aluminum. Aluminum is a low density metal with good corrosion resistance. Aluminum is often anodized to enhance corrosion resistance.
	Cast Iron		Weight manufactured from cast iron. Cast iron is a high-carbon ferrous alloy.
	Concrete		Weight manufactured from concrete.
	Brass		Weight manufactured from brass. Brass is a metal alloy of copper and zinc with good corrosion resistance.
	Filled Polymer / Rubber		Weight manufactured from a filled polymer or rubber.
	Granite / Stone		Weight manufactured from granite or stone.
	Lead		Weight manufactured from lead. Lead is a very dense metal.
	Molybdenum		Weight manufactured from molybdenum. Molybdenum is a very dense metal.
	Sand / Gravel		Weight made from sand or gravel within a container such as a plastic bag or barrel.
	Stainless Steel		Weight manufactured from stainless steel. Stainless steel is a metal with excellent corrosion resistance.
	Steel		Weight manufactured from carbon or alloy steel. Steel usually requires a surface treatment or coating to prevent corrosion.
	Tungsten		Weight manufactured from tungsten. Tungsten is a very dense metal.
	Water		Weight made from water within a container such as a plastic bag or barrel.
	Zinc		Weight manufactured from zinc. Zinc usually requires a surface treatment or coating to prevent corrosion.
	Specialty / Other		Other unlisted, proprietary or specialized material of construction.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
	Non-magnetic?		Weight manufactured from a non-magnetic material. Magnetic fields can impact weight calibration and scale verifications in some cases.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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