Riten Industries, Inc. represents this unique line of heavy duty spring loaded live centers. Manufactured by Greber AG of Switzerland, and supported by Riten Industries, Inc. in the United States, these centers feature cylindrical roller bearings backed with the spring capabilities of Belleville washers. The spring loaded spindle compensates for work piece expansion or contraction while the large bore bearings are capable of supporting heavier loads. A three color pressure ring provides visible feedback to the operator to help monitor thrust loads.