Patent ID: 11879499
Assignee: REGAL BELOIT AMERICA, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 9:
10. A transmission shaft for a rolling stand for use in a metal rolling mill, comprising:
a shaft including a generally cylindrical outer periphery and defining a centrally positioned longitudinal opening extending from a first end to an opposed second end of the shaft and defining a plurality of internal passageways therein, and an inner periphery, the centrally positioned longitudinal opening facilitating conveying of fluid between the first end and the opposed second end; and
a sleeve including an outer periphery thereof fitted to the inner periphery of the shaft, wherein the sleeve is hollow, wherein a space between the inner periphery of the shaft and the outer periphery of the sleeve define the plurality of internal passageways.