SKF INSOCOAT Single Row Cylindrical Roller Bearings
SKF INSOCOAT single row cylindrical roller bearings provide reliable electrical insulation and high performance in electric motor applications. The specialized aluminium oxide coating protects against electrical erosion, reducing downtime and maintenance.
Key Advantages of SKF INSOCOAT Bearings
SKF INSOCOAT bearings effectively protect equipment from electrical erosion by integrating insulating properties. This unique protection significantly enhances machine reliability. The insulation layer uses an advanced aluminum oxide coating, ensuring high electrical resistance. This coating can withstand up to 3,000 V DC and provides a minimum resistance of 200 MΩ. This exceptional electrical performance is crucial for extending bearing life and reducing downtime.
Furthermore, SKF INSOCOAT bearings undergo a special sealing treatment during production. This treatment effectively prevents the coating from being affected by humid environments. It maintains stable electrical performance even in the presence of condensation. This means the bearings provide reliable protection under various operating conditions. These advantages make SKF INSOCOAT bearings an ideal choice for electrified applications.
Different Coating Options for SKF INSOCOAT Bearings
SKF INSOCOAT Single Row Cylindrical Roller Bearings come in multiple design variants to suit specific applications and voltage resistance needs. The VL0241 and VL0246 designs feature outer ring insulation, making them suitable for medium and small-sized motors. These variants offer resistance levels of 200 MΩ and 400 MΩ, respectively, depending on the insulation grade.
For larger motors, where internal space and surface area differ, SKF offers VL2071 and VL2076, which apply the insulation coating to the inner ring. These inner-coated designs reduce electrical capacitance and provide higher impedance, which enhances insulation stability in systems with high-frequency electrical interference.
These options allow engineers to select the ideal bearing depending on load capacity, shaft configuration, and operating voltage levels. All SKF INSOCOAT bearings are dimensionally interchangeable with standard cylindrical roller bearings, making retrofitting simple and convenient.
SKF INSOCOAT Bearings Applications
SKF INSOCOAT Single Row Cylindrical Roller Bearings combine high radial load capacity with excellent electrical insulation. They operate stably under heavy radial loads and high speeds. The electrical insulating coating on the external surfaces of the outer or inner ring effectively prevents current from passing through the bearing. This design is particularly important for applications that need to handle high-frequency currents.
These bearings feature a separable design, facilitating easier mounting and maintenance. For example, NU design bearings have two integral flanges on the outer ring and no flanges on the inner ring, allowing for axial displacement in both directions. These characteristics make SKF INSOCOAT Cylindrical Roller Bearings widely used in railways, electric motors, generators, wind energy, and industrial pumps. They provide reliable performance and extended service life in these critical applications.
FREQUENTLY ASKED QUESTIONS
What are SKF INSOCOAT bearings, and what are they used for?
SKF INSOCOAT bearings are bearings with an electrically insulating coating. Their main purpose is to prevent electric current from passing through the bearing. This effectively protects the bearing and the equipment it's in from damage caused by electrical erosion. They are particularly suitable for applications like motors and generators where harmful currents can occur.
What is the insulation performance of SKF INSOCOAT bearings?
The insulation performance of SKF INSOCOAT bearings is excellent. Their aluminum oxide coating provides a minimum electrical resistance of 200 MΩ. They can also withstand voltages up to 3,000 V DC. This high resistance ensures reliable operation of the bearing in electrical environments.
What are the design features of SKF INSOCOAT cylindrical roller bearings?
SKF INSOCOAT Single Row Cylindrical Roller Bearings feature high radial load capacity and a separable design. This makes installation and maintenance easier. They typically have an insulating coating on either the outer or inner ring, depending on the model. For example, NU designs allow for axial displacement.
Which industries primarily use SKF INSOCOAT bearings?
SKF INSOCOAT bearings are widely used in critical industries requiring electrical insulation. This includes railways, electric motors, generators, wind energy, and industrial pumps. In these areas, they effectively improve equipment reliability and uptime by preventing electrical damage.