Yes. Please contact Xiamen JAMA Bearing Co., LtdCustomer Service if you have problems in o ring installation. Our company strives to offer the best after-sales and technical support. Providing worldwide service and technical support through an extensive network of offices and service centers, we guarantee that customers get the service they need – whatever, wherever and whenever they need it. Also, we have a dedicated team of specialist service engineers with full in-depth product knowledge. And the standard spare parts usually available from stock allow us to make fast and reliable responses all the time.
 
JAMA has developed into a leading manufacturer of bearing units. JAMA's chain sprocket series contains multiple sub-products. The product is treasured for its consistent performance and optimum functionality.  The product acts a significant role in safeguarding the environment. By using less electricity, the product has low emissions of harmful gases to the environment.

With high quality, competitive price and first-class service, JAMA become first choice for most customers. Check now!