SKF HRA+ SPHR ROLLER BRG 21308 EW

Self-aligning roller bearings play a key role in the proper functioning of equipment subjected to high mechanical loads. Their robust design ensures reliable and continuous performance, even under unstable or demanding operating conditions.

This self-aligning bearing from SKF is designed to provide excellent stability in industrial environments subject to heavy loads. Thanks to its double-row roller structure and self-aligning capability, it absorbs radial and axial loads while compensating for shaft misalignment.

Features:
This spherical roller bearing features two stamped steel window cages, a flangeless inner ring, and a floating guide ring centered on the inner ring (for bores up to 65 mm). The E design allows for better load distribution and a higher load capacity. The cylindrical bore allows for direct mounting on a machined shaft.

Maintenance:
This open-design bearing must be lubricated manually and regularly depending on operating conditions. The absence of a built-in relubrication system requires more rigorous maintenance, particularly in dusty or humid environments. Periodic inspection of lubricant levels, noise, vibrations, and temperature helps prevent premature wear.

Sealing:
This open model has no built-in seals. This makes it more susceptible to external contaminants such as dust, moisture, or solid particles. However, this design facilitates visual inspection and maintenance. To protect the bearing, it is essential to work in a clean environment, use a suitable lubricant, and monitor for any signs of contaminant intrusion to prevent premature failure.

Brand Information:
For over 100 years, SKF has been a pioneer in the bearing and lubrication systems industry. This Swedish group is renowned for its cutting-edge technologies, innovative solutions, and ability to optimize the performance of rotating equipment. Operating across numerous industrial sectors, SKF helps its customers increase reliability, reduce maintenance costs, and maximize the efficiency of their machines, whether in manufacturing, transportation, healthcare, energy, or many other industries.

Key Benefits:
• Self-alignment to compensate for misalignment
• Simple installation thanks to the cylindrical bore
• Easy inspection and maintenance
• Ideal for variable-speed environments
• Good resistance to combined speed and load

Applications:
This double-row roller bearing is recommended for medium-sized industrial equipment operating under standard to moderately severe conditions. It is particularly suitable for fans, conveyors, crushers, pumps, or processing machinery in the manufacturing, food processing, and material handling industries. Its robust design and reliability make it a safe choice for machines subjected to combined loads with alignment variations.