With its latest generation of electrically insulated bearings, SKF has raised the performance standard to provide constant electrical performance, even in high humidity. The Insocoat bearing range comprises bearings with an electrically insulating coating on the external surfaces of its inner or outer ring, plasma-sprayed with an aluminium oxide coating. The coating, which is naturally hygroscopic, is sealed with a resin to protect against the conductive effects of high humidity and moisture ingress.
These bearings are specially designed and manufactured for use in rotating electrical machines, such as industrial electric motors, traction motors and generators. They prevent the passage of harmful electrical currents from the rotor to the machine frame via the bearings, which causes progressive electrical erosion of the rolling contact surfaces and ultimately premature failure.
Following the introduction of an improved plasma spray coating process and optimised ceramic layer, SKF can provide this superior insulating coating as standard and off-the-shelf across its entire Insocoat range. The bearings can withstand voltages of 3000 V DC, sufficient to cope with the vast majority of stray bearing current problems in electrical machines. In addition, the upgraded moisture-resistant coating provides greater protection against humidity storage environments, which can compromise a bearing’s insulating properties before it is even placed in service. This makes the bearings highly robust during transport and handling. Combining both bearing and insulation in a single solution, Insocoat protects against electrical erosion at a significantly lower total cost of ownership compared to other techniques such as shaft or housing insulation.
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Pneumatic systems & components
One of SKF’s key customers based in Cape Town, which depends on steam systems for its production processes, was facing costly challenges related to high energy consumption and excessive maintenance hours. SKF recommended the TKSU 10 ultrasonic leak detector as a more streamlined, user-friendly alternative.
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Shaft power components
A collaborative bearing failure analysis conducted by SKF and Authorised Distributor, Bearings Services Durban at one of South Africa’s leading sugar refinery plants in KwaZulu-Natal provided tremendous value for the customer.
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Shaft power components
BMG’s specialised Gates belting range includes Predator V-belts, engineered for optimal performance in Africa’s harshest conditions.
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News & events
In one of motorsport’s most demanding arenas, a partnership forged in engineering precision and high-performance ambition has proven its worth. SKF, a global leader in bearing technology and innovation, celebrated a remarkable milestone in partnership with SVR Toyota GAZOO Racing, taking second position overall at the 2025 Dakar Rally.
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Shaft power components
Machine vibrations are important indicators when it comes to assessing the current condition of a machine. Damage to rolling element bearings and other machine components can be detected at an early stage before costly machine downtime occurs.
Read more...SKF empowers employees SKF South Africa
News & events
The cornerstone to SKF’s success as a global leader in premium bearing products and rotating technology is an unwavering commitment to investing in its valued employees. Tsholofelo Choma, who now proudly holds the position of quality environmental health and safety (QEHS) officer, exemplifies SKF’s employee-centricity ethos.
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Shaft power components
BMG’s total plant management solutions encompass a technical advisory service for maintenance programmes that includes correct chain and sprocket selection, which is a critical factor in any power transmission system.
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Shaft power components
The SKF Rotating Equipment Performance Centre provides anyone from anywhere with easy access to a comprehensive suite of advanced condition monitoring, analytical and diagnostic solutions.
Read more...Next-gen battery-driven grease gun SKF South Africa
Other technologies
SKF’s innovative TLGB 21 battery-driven grease gun optimises lubrication efficiency and reduces costs, by seamlessly combining advanced technology with a smart, rugged design.
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