88508, Single Row Radial Deep Groove Ball Bearing 40x80x27 - Double Sealed

88508 bearings are high-quality and precision-engineered components designed to meet the demanding requirements of a variety of industrial applications.

Design:
The 88508 deep groove ball bearing features a single-row radial design, engineered for high-speed rotation and low friction operation. Its precision-ground raceways and high-quality steel construction ensure smooth rolling motion, reducing energy loss and wear. The double-contact rubber seals (RS/2RS/ZZ/OPEN) provide enhanced protection while maintaining optimal rolling efficiency. This design is ideal for applications requiring quiet operation and long service life, such as electric motors, automotive components, and industrial machinery.

Seals:
Equipped with double-contact rubber seals (RS/2RS/ZZ/OPEN), this bearing effectively blocks dust, moisture, and debris from entering the internal raceways. The lip-contact sealing design ensures long-term grease retention while minimizing friction drag, making it suitable for harsh environments where contamination resistance is critical. Unlike shielded bearings, the rubber seals provide better sealing performance, extending bearing life in agricultural, automotive, and industrial applications.

Dimensions:
Manufactured to standard metric dimensions (40x80x27 mm), this bearing ensures direct replacement for OEM applications. The tight tolerances (ABEC-1/P0 grade) guarantee consistent performance in high-precision assemblies. The 21 mm inner ring width (Be) and 27 mm outer ring width (B) provide structural stability, preventing misalignment in dynamic applications

Load capacity:
Constructed from high-carbon chromium steel (GCr15), the 88508 bearing delivers excellent radial and axial load capacity:
Dynamic Load Rating (Cr): 29.52 kN
Static Load Rating (Cor): 18.14 kN
The optimized ball complement and precise raceway geometry distribute loads evenly, preventing premature wear even under heavy-duty conditions

Temperature resistance:
The bearing operates reliably in a wide temperature range (-30°C to +120°C / -22°F to +248°F), making it suitable for both extreme cold and high-heat environments. The heat-stabilized steel and high-quality grease ensure stable performance without lubrication breakdown, even in high-speed applications (up to 8,800 rpm with grease, 10,000 rpm with oil)