Insert bearings

Within the workshop, a reliable bearing is a guarantee of protection for your production lines. At Rubix, find insert bearings tailored to the rigorous demands of the B2B sector.

They optimize machine performance while remaining capable of tolerating shaft misalignments. Whether standard or specific, their design simplifies replacement on your equipment. You gain increased safety under load and enhanced reliability. Through our leading reference brands, you have access to a wide selection of products in stock. When used optimally, every insert bearing meets the needs of all industrial operators.

An insert bearing is designed with a spherical outer ring. This principle allows for the compensation of alignment errors between the shaft and the housing (self-alignment).

These components are used in environments where assemblies must remain fast and reliable, even under combined loads. Their primary advantage is maintaining smooth operation without premature wear. They are commonly found in conveyors, fans, pumps, packaging lines, and agricultural machinery. These types of installations require high reliability and mounting simplicity.

There are several families available. The standard model corresponds to self-aligning ball bearings. Available in open or sealed versions, they are suitable for high speeds and moderate constraints.

Furthermore, insert bearings are offered with various locking systems to adapt to every shaft configuration. These include grub screws (set screws), eccentric locking collars, or adapter sleeves.

Self-aligning bearing housings can be configured as flange units, take-up units, or pillow blocks (plummer blocks). They form complete assemblies combining the insert with a robust steel or cast iron housing.

Rubix offers bearings suitable for both standard mechanical applications and severe industrial environments. Our range includes a selection of market-leading brands such as SKF, INA, FAG, NTN, and SNR. It incorporates the SKF 12xx and 22xx series, SNR 2210, UC/US/UK inserts, as well as flange and pillow block units. In partnership with the largest suppliers, Rubix highlights expanded ranges of insert bearings adapted to industrial needs.

Choosing insert bearings requires taking precise technical characteristics into account:

• Standardized dimensions: Pertaining to the bore (inner diameter), outer diameter, and width.
• Load capacity: High radial load capacity and moderate axial load capacity.
• Internal clearance: Radial play and tolerances vary between standard or C3 versions.
• Sealing: Rubber seals and shields differ between open models and specific reinforced systems designed to resist dust and humidity.
• Materials: Eccentric collars and bodies are generally made of steel or cast iron. Stainless steel variants exist for humid environments.
• Speed and Surface Finish: These guarantee long-lasting, silent operation.

The choice is based on elements such as the load profile, as well as speed and temperature. The environment plays a major role if it is humid or dusty; in such cases, a sealed bearing is necessary.

The type of shaft locking influences the ease of mounting as well as the mechanical hold. Depending on space constraints, the appropriate bearing housing (flange, pillow block, or take-up) should be selected. In all cases, Rubix ensures a comprehensive catalog and fast logistics to secure your supply chain.

These bearings are particularly useful in both maintenance and production:

• Compensation of static and dynamic misalignment;
• Extended service life with reduced stress on housings and shafts;
• Suitable for high speeds due to reduced friction;
• Quieter and more stable operation;
• Fast mounting;
• Reduction of risks related to shaft deflection;
• A solution adapted to demanding environments.

Before beginning installation, check the condition of the shaft, its cleanliness, and its tolerances. The insert is then aligned and fitted into the housing unit with a locking method that varies by design. Once fixed, verify the self-alignment by ensuring free rotation.

Finally, perform lubrication while checking seals and lubrication points. During initial operation, pay close attention to noise and vibration to ensure a reliable and durable installation.