HC7021-E-T-P4S-UL

Engineered for demanding CNC machining centers and high-frequency milling heads, the HC7021-E-T-P4S-UL is a super-precision hybrid spindle bearing measuring 105×160×26 mm. By pairing wear-resistant silicon nitride ceramic rolling elements with a 25-degree contact angle (E) and an outer-ring-guided laminated phenolic resin cage (T), this open-design angular contact ball bearing suppresses centrifugal forces and minimizes heat generation during sustained high-RPM operation. Manufactured to P4S tolerance standards-exceeding standard ISO Class 4 dimensional and Class 2 running accuracy-the HC7021-E-T-P4S-UL delivers a dynamic load rating of 45 kN and a static load rating of 33 kN without sacrificing spindle rigidity. Its universal light-preload configuration (UL) lets maintenance teams mount single units or arrange matched pairs in back-to-back (O), face-to-face (X), or tandem sets straight out of the box. Whether replacing worn spindle assemblies or specifying components for new precision grinding equipment, sourcing the HC7021-E-T-P4S-UL ensures tight axial runout control and extended service intervals under heavy combined loads.

We provide sea and air freight services for large bearings, and international express shipping services for small bearings.

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