Novel TBM shield hob device

The invention discloses a novel TBM shield hob device. The novel TBM shield hob device comprises a rolling shaft, a rolling wheel arranged outside the rolling shaft in a sleeving mode, a lubricating cavity arranged between the periphery of the rolling shaft and the inner periphery of the rolling wheel, sealing end covers detachably connected with the rolling shaft and positioned at the two ends ofthe rolling wheel, roller cavities arranged in the periphery of the lubricating cavity in parallel and used for accommodating a plurality of rollers, a steel ball cavity arranged between the roller cavities in parallel and used for accommodating a plurality of steel balls, and a plug pin hole extending and communicating with the steel ball cavity from the end part of the rolling shaft and used for plugging the steel balls; and the sealing end covers block the plug pin hole and seal the lubricating cavity. According to the novel TBM shield hob device, the assembly precision of the rolling shaft and the strength of the