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7815 / 30615 Tapered Roller Bearing


  • Dimensional Boundary: Standard metric sizing profile engineered to handle complex radial and thrust loads.
  • Symmetrical Rollers: Precision-ground rollers mounted within a high-strength stamped steel cage for optimized roller guidance.
  • Paired Mounting: Commonly installed in opposing pairs along a shaft to provide complete bi-directional axial stabilization.

Deep Application & Technical Narrative:The 7815 (cross-referenced globally under the standard metric designation 30615) is a high-precision metric single-row tapered roller bearing. This model is widely used across heavy commercial truck wheel hubs, agricultural machinery drivetrains, and industrial reduction gearboxes. Tapered roller bearings are uniquely engineered to support heavy radial and axial loads simultaneously, making them the industry standard for rotating shafts subjected to complex thrust combinations. To ensure reliable long-term performance, the rollers and raceways must be perfectly matched. In our assembly facility, we perform 100% individual quality checks on the cone and cup match-ups, ensuring a uniform contact line across all rollers and preventing premature bearing failure.

  • Customized B2B Supply & Packaging Solutions:As a reliable supplier providing a full range of bearing types, we offer the 7815 (30615) in flexible B2B formats. Choose from bulk industrial trays for axle rebuilders or single-unit client-branded boxes tailored for retail distribution. We optimize shipping manifests to ensure cost-effective container loads for our international partners.

  • Targeted Technical Clarifications (FAQ):

    • Q: Is the cup and cone sold together or separately?A: We supply the 7815 (30615) as a complete, factory-matched set (cup and cone together) to ensure optimal running accuracy.

    • Q: What is the benefit of the 7815 part number cross-reference?A: The dual designation ensures seamless procurement and inventory matching across different international markets and vehicle repair databases.


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Linqing Xinshengdi Bearing Co., Ltd.