Neodymium sphere magnet (magnetic ball) 25 mm, nickel-plated

Neodymium Sphere Magnet 40 mm N48 (Magnetic Ball)

$38.97 Prices in USD, no import duties
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Neodymium sphere magnet (magnetic ball) 25 mm, nickel-plated

Neodymium Sphere Magnet 40 mm N48 (Magnetic Ball)

MS-BL-40
  • Size Ø 40 mm
  • Grade N48
  • Material Neodymium (NdFeB)
All specifications
$38.97 Prices in USD, no import duties
  • No minimum order
  • Free US shipping from $50
  • Volume discounts across the whole cart

Volume prices

Quantity Price per piece You save
1–9 (your quantity) $38.97 List price
10–49 (your quantity) $35.08 −10%
50–199 (your quantity) $31.18 −20%
200+ (your quantity) $27.28 −30%

Mix & match: quantities of all products in your cart count towards the tier. The discount is applied automatically in the cart.

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In stock. Ships the same working day from US stock, delivery in about 5 business days

  • Free US shipping from $50
  • Prices in USD, no import duties
  • Shipped from the US, own stock
  • 14-day returns for consumers
Description

Neodymium Sphere Magnet 40 mm (Magnetic Ball)

The Neodymium Sphere Magnet 40 mm (1.57") (Magnetic Ball) is a neodymium (NdFeB) magnet in grade N48 with a nickel coating (Ni-Cu-Ni). It is a sphere with a diameter of 40 mm (1.57"), magnetised through its diameter, with the north and south poles on opposite sides. Spheres are used for magnetic construction and demonstration models, flexible joints, displays and educational projects.

N48 is one of the higher grades of neodymium and gives a high holding force for its size (N50 and N52 are stronger still). The holding force is highest when the magnet sits directly on a thick, flat steel plate. In practice the force is lower on thin or painted steel, on rough surfaces or with an air gap.

  • Dimensions: Ø 40 mm (1.57")
  • Grade N48 neodymium (NdFeB) with nickel coating (Ni-Cu-Ni)
  • Maximum operating temperature 80 °C (176 °F)

The nickel coating protects the magnet against corrosion in dry, indoor conditions. For damp or outdoor use, seal or shield the magnet.

Please handle with care: a magnet of this size attracts steel and other magnets from a distance and can cause serious pinching injuries. Separate magnets by sliding them apart, never let them snap together, and wear gloves when handling several at once. Keep away from children, pacemakers and sensitive electronics.

Shipping & duties

Free US shipping from $50. Orders ship the same working day from our own US stock, with delivery in about 5 business days. Below $50, shipping is a flat $5.99. Prices are in USD, with no import duties on US deliveries. Your total is shown at checkout before you pay. Consumers can return items within 14 days.

Shipping: free US shipping from $50 · Shipping policy · Returns & refunds

Safety

Neodymium magnets are very strong. Keep them away from pacemakers, electronics and magnetic cards, wear gloves with larger sizes and keep small magnets away from children.

Magnet safety guide

Technical data

Specifications

Specifications: Neodymium Sphere Magnet 40 mm N48 (Magnetic Ball)
ShapeSphere (ball)
DimensionsØ 40 mm
MaterialNeodymium (NdFeB)
GradeN48
MagnetisationAxial (through diameter)
Max. operating temperature80 °C (176 °F)
CoatingNickel (Ni-Cu-Ni)
SKUMS-BL-40
Shipping weight252 g

Nominal values. Real holding force depends on steel thickness, surface, air gap and direction of pull.

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