DuraKapp™#4X Babbitt 1 lb. Regular Bar
$44.00

DuraKapp™ #4X Nickel Babbitt is formulated for higher temperature, high-speed applications where standard babbitt falls short. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, these nominal 1 lb regular bars are well-suited for machinery, engine, and generator bearing refurbishment. Kapp Alloy has been manufacturing quality babbitt alloys for over 70 years, making them a reliable source for precision bearing materials built to handle demanding operating conditions.
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DuraKapp™#4X Babbitt 5 lb Notch Bar
$190.00

Kapp Alloy's DuraKapp™ #4X Nickel Babbitt is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, these 5 lb notch bars deliver reliable performance where standard babbitts fall short. Backed by over 70 years of manufacturing experience, Kapp Alloy produces consistent, quality alloys trusted by bearing professionals across industries.
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DuraKapp™#4X Babbitt .187" (4.8mm) x 25 lb spool
$922.00

DuraKapp™ #4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, this .187" (4.8mm) diameter wire also works as a spray wire for surface wear components. Available on a convenient 25 lb spool, it's a reliable choice for demanding industrial bearing work. Kapp Alloy has been manufacturing quality babbitt products for over 70 years.
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DuraKapp™#4X Babbitt .125" (3.2mm) x 25 lb spool
$929.00

DuraKapp™ #4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With an 88.8Sn/3.5Cu/7.5Sb/0.2Ni alloy composition, it also works as a spray wire for surface wear components. Available in .125" (3.2mm) diameter on a 25 lb spool, this is a reliable option from a manufacturer with over 70 years of experience producing quality babbitt alloys.
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DuraKapp™#4X Babbitt .098" (2.5mm) x 25 lb spool
$954.00

DuraKapp™ 4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With an alloy composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, it also works as a spray wire for surface wear components. Available in .098" (2.5mm) diameter on a 25 lb spool, this is a reliable option for demanding bearing and surface restoration work. Kapp Alloy has been manufacturing quality babbitt products for over 70 years.
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DuraKapp™#4X Babbitt .079" (2mm) x 25 lb spool
$969.00

DuraKapp™ #4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With an alloy composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, this wire also works as a spray wire for surface wear components. Available in .079" (2mm) diameter on a 25 lb spool, it's a reliable choice for demanding bearing applications where standard babbitt may fall short.
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DuraKapp™#4X Babbitt .062" x 25 lb spool
$982.00

DuraKapp™ #4X Nickel Babbitt wire is built for high-speed, higher-temperature applications including machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, this .062" (1.6mm) diameter wire also works as a spray wire for surface wear components. Available on a 25 lb spool, it's a reliable choice for bearing work that demands consistent performance under demanding operating conditions. Kapp Alloy has been manufacturing quality babbitt alloys for over 70 years.
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DuraKapp™#4X Babbitt 35 lb Ingot
$1,250.00

Kapp Alloy's DuraKapp™ #4X Nickel Babbitt is a tin-based alloy designed for higher temperature, high-speed machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, it delivers reliable performance in demanding applications. Available in nominal 35 lb ingots, this product has been manufactured by Kapp Alloy & Wire for over 70 years. Note that a minimum order quantity of 350 lbs applies.
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DuraKapp™#4X Babbitt .125" (3.2mm) x 250 lb Payout Pak
$7,360.00

Kapp Alloy's DuraKapp™ #4X Nickel Babbitt wire is built for demanding applications — specifically higher temperature, high-speed machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, this .125" (3.2mm) diameter wire also works as a spray wire for surface wear components. The 250 lb Payout Pak keeps your operation running efficiently with less downtime for resupply. Backed by over 70 years of manufacturing experience, Kapp Alloy delivers consistent, reliable babbitt wire you can count on.
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DuraKapp™#4X Babbitt .098" (2.5mm) x 250 lb Payout Pak
$7,560.00

DuraKapp™ #4X Nickel Babbitt wire is built for demanding applications where standard babbitt falls short. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, it handles higher temperatures and high-speed conditions in machinery, engine, and generator bearing refurbishment. It also works as a spray wire for surface wear components. This 250 lb Payout Pak comes in .098" (2.5mm) diameter, offering a reliable supply for continuous production or large-scale bearing work.
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DuraKapp™#4X Babbitt .079" (2mm) x 250 lb Payout Pak
$7,685.00

Kapp Alloy's DuraKapp™ #4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With an 88.8Sn/3.5Cu/7.5Sb/0.2Ni alloy composition, it also works as a spray wire for surface wear components. Available in .079" (2mm) diameter on a 250 lb Payout Pak, this is a reliable choice backed by over 70 years of manufacturing experience.
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DuraKapp™#4X Babbitt .062" x 250 lb Payout Pak
$7,785.00

DuraKapp™ #4X Nickel Babbitt wire is built for higher temperature, high-speed applications including machinery, engine, and generator bearing refurbishment. With a composition of 88.8Sn/3.5Cu/7.5Sb/0.2Ni, this .062" (1.6mm) diameter wire also works as a spray wire for surface wear components. The 250 lb. Payout Pak keeps workflow efficient for larger jobs. Kapp Alloy has been manufacturing quality babbitt products for over 70 years.
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ASTM-B23 4X Nickel Babbitt

DuraKapp™ #4X Nickel Babbitt is built for demanding bearing applications where standard alloys fall short. By adding Nickel to the #2 Babbitt matrix, it delivers higher tensile and compression strength at elevated temperatures without losing ductility—a balance that's critical to preventing bearing failure. Made from high-grade virgin raw materials using Kapp Alloy's Precision Microcasting™ process, it's a reliable choice for compressors, marine diesel engines, steel mills, mining machinery, paper mills, and crushers.

DuraKapp™#4X Nickel Babbitt lasts longer under severe service because it provides higher strength at higher temperatures without sacrificing ductility. In any bearing application, strength without this crucial ductility leads to bearing failure.

Nickel Babbitt Benefits & Features

Holds the oil film
Pours freely and fills all liner crevices
Anti-frictional
Cannot cut the shaft
Resists high temperatures
High thermal conductivity

Nickel Babbitt Applications

Compressors and blowers
Marine and locomotive diesel engines
Marine bearings
Reduction gears
Dredges
Lumber and cement mills
Rock and gravel machinery
Steel mills
Mining machinery
Sugar mills
Paper mills
Crushers
Electric railroads
Clay working machinery
Paired with KappaTinning™ Compound and Kapp CopperBond™ Flux