Welcome to Linqing Xinshengdi Bearing Co., Ltd.
The U399/460L is a high-demand inch-series tapered roller bearing widely recognized in the international automotive aftermarket. It is an essential component for commercial trailer axles, light-duty truck wheel hubs, and agricultural towing equipment. As an experienced B2B trade aggregator, we ensure these bearings meet strict dimensional tolerances for perfect drop-in replacement. This guarantees fleet operators and auto parts wholesalers in global highly reliable, long-lasting performance under heavy towing loads.