A high load, high temperature compatible bearing assembly (200) includes a shaft (208) formed of refractory steel or high temperature alloy. A roller (204) formed of refractory steel or high temperature alloy receives the shaft (208) within a bore (220) in the roller (204). At least one bearing ring (212) formed of ceramic is disposed between the shaft (208) and the roller (204). The bearing ring (212) cooperates with the roller (204) to permit the roller (204) to freely rotate around the shaft (208).

A mold shuttle positioning system in a glass sheet forming system includes a mold mounted on a support frame. A shuttle frame including a pair of generally parallel elongate beams for receiving and supporting the mold support frame thereon. At least one support wheel assembly including a wheel and a shuttle guide is mounted in proximity to each of the shuttle beams to position and support each one of the beams as the shuttle frame is moved to position the mold supported thereon at one of multiple desired processing locations. At least one mold guide is mounted on the support surface of one of the beams for receiving and fixing the position of the mold support frame relative to the shuttle frame to align and prevent movement of the mold support frame with respect to the shuttle frame in any direction as the mold support frame is supported thereon.

A vacuum mold shuttle system in a glass sheet forming system includes a vacuum mold mounted on a support frame. A shuttle frame including a pair of generally parallel elongate beams for receiving and supporting the mold support frame thereon. A vacuum source is mounted on the shuttle frame near the end of the beams opposite to the end supporting the mold, a conduit and coupling port for releasably connecting the mold to the vacuum source. At least one guide element is mounted on the support surface of one of the beams for receiving and fixing the position of the mold support frame relative to the shuttle frame to align and prevent movement of the mold support frame with respect to the shuttle frame in any direction as the mold support frame is supported thereon.

A glass sheet forming and annealing system disclosed provides control of edge stresses by maintaining a press formed glass sheet on an annealing ring (72) below a heated upper forming mold (58) within a forming station (12) for slow cooling toward the glass strain point temperature.

Glass sheet forming and annealing disclosed provides control of edge stresses by maintaining a press formed glass sheet on an annealing ring (72) below a heated upper forming mold (58) within a forming station (12) for slow cooling toward the glass strain point temperature.

A support structure for supporting a heated glass sheet in connection with a bending operation includes a frame, a support ring adjustably supported on the frame for supporting a peripheral portion of the glass sheet, and multiple rib assemblies associated with the frame. Each rib assembly includes a laterally extending rib supported on the frame and multiple spaced apart support members connected to the rib and configured such that at least a portion of each support member is adjustable with respect to the rib. Furthermore, each support member is configured to contact a respective inner portion of the glass sheet to support the respective inner portion of the glass sheet until the glass sheet has been sufficiently cooled.

A glass substrate transfer system and a robot arm thereof are provided. The robot arm includes: a substrate fork, a moving assembly and a vacuum chuck. The substrate fork is for taking a glass substrate. The moving assembly is connected with the substrate fork and for making the substrate fork to be moved in a working space. The vacuum chuck is disposed on the substrate fork and for sucking the glass substrate. The vacuum chuck is formed with a fluid path, and the fluid path is contained with a cooling fluid to dissipate heat of the vacuum chuck. The glass substrate transfer system and its robot arm provided by the present invention cool the vacuum chuck in time and thus can avoid affecting the product quality caused by the vacuum chuck being overheated, and the product yield is improved.