The BH series refers to a type of drawn cup needle roller bearing with a specific sealing arrangement. Similar to the BK series, it features a thin-walled, precision-formed outer cup (drawn cup) containing needle rollers and a cage. The key characteristic of the BH designation often relates to a specific seal type or internal design variation compared to the standard BK. While the exact distinction can vary by manufacturer, the BH series typically offers optimized performance for applications requiring effective contamination protection and moderate speeds. Its compact and lightweight design makes it a cost-effective solution for space-constrained applications.
