US 12,247,616 B1
Gas bearing pad
Toshinori Sato, Kanagawa (JP)
Assigned to NSK LTD., Tokyo (JP)
Appl. No. 18/284,628
Filed by NSK LTD., Tokyo (JP)
PCT Filed Mar. 9, 2022, PCT No. PCT/JP2022/010434
§ 371(c)(1), (2) Date Sep. 28, 2023,
PCT Pub. No. WO2022/209685, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-062325 (JP), filed on Mar. 31, 2021.
Int. Cl. F16C 32/06 (2006.01)
CPC F16C 32/0618 (2013.01) [F16C 32/0666 (2013.01); F16C 2226/60 (2013.01); F16C 2300/32 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A gas bearing pad comprising:
a main body portion disposed on a base including a guide surface and including a recess portion on a facing surface that faces the guide surface;
a porous body fitted into the recess portion of the main body portion; and
a bolt inserted into a bolt insertion hole provided in the porous body to fix the porous body to the main body portion, wherein
a gas bearing is formed between the porous body and the base by blowing compressed gas from the main body portion through the porous body toward the base,
a counterbore hole that accommodates a head portion of the bolt is provided in the bolt insertion hole, and
in the counterbore hole, a space is provided between a top surface of the head portion of the bolt that faces the guide surface and a bearing surface of the porous body that faces the guide surface.