Industrial Bearing Specialists

White-metal bearings are commonly used in machines to allow spinning components such as gears to rotate. White-metal alloys are used to manufacture these bearings, due to their smooth texture that exhibit minimal friction. A metallic alloy is a combination of metals, or sometimes a combination of metals with other non-metallic elements, that form a new material that is referred to as an alloy. White-metal alloys get their name form their colour, and usually include tin, lead, and zinc. Most white-metal alloys have a tin or lead base.

Tin-lead and tin-copper alloys have low melting points, which is also the case with Babbitt metal. Also referred to as “bearing metal”, this alloy is ideal to be used a solder. Solder is a material that is used to melt together metallic objects such as electric wires while maintaining electrical conductivity. A soldering iron is used to heat up the solder. With a low melting point, the solder becomes malleable, at which point it melts onto the intended surface. This method is also used to connect electronic components such as resistors, capacitors, and diodes to printed circuit boards.

For industrial bearings, the alloy is reformulated to suit its intended applications. For light- and medium-duty big-end bearings in internal-combustion engines, the alloy consists mostly of tin, with a small addition of copper and antimony. The main bearings in such a machine have less tin and more antimony. General-purpose heavy-duty variants are also used in large machinery. This alloy has 6% lead added and less tin. This results in a more durable alloy that is ideal for heavy-duty applications.

Some electrical motors also use industrial white-metal bearings composed of a unique alloy. The composition consists of 60% tin, 10% antimony, 28,5% copper, and only 1,5% lead. This alloy is also good for bearings that are used in marine engines. However, the most commonly used variant is a low-cost, general-purpose alloy that is ideal for medium-duty applications. This alloy consists of 48,5% lead and 40% tin, with small additions of copper and antimony to make up the remainder. There is a plethora of different white-metal alloys used for such components and we can manufacture the right components for your business’s needs.

Technoslide specialises in white-metal and civil bearings. Our services include the repair and manufacture of these components to match the needs of our customers. We offer fast turnaround on our repairs as well, ensuring that a faulty component is quickly repaired or replaced. For more on how we can assist your business, please peruse our website.