US 12,031,586 B2
Method for manufacturing bearing device for vehicle wheel
Shigeaki Fukushima, Iwata (JP); and Natsuko Nagai, Iwata (JP)
Assigned to NTN CORPORATION, Osaka (JP)
Appl. No. 17/424,226
Filed by NTN Corporation, Osaka (JP)
PCT Filed Jan. 23, 2020, PCT No. PCT/JP2020/002240
§ 371(c)(1), (2) Date Jul. 20, 2021,
PCT Pub. No. WO2020/153417, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 2019-011474 (JP), filed on Jan. 25, 2019.
Prior Publication US 2022/0065290 A1, Mar. 3, 2022
Int. Cl. F16C 43/04 (2006.01); B60B 27/00 (2006.01); F16C 19/18 (2006.01); F16C 33/72 (2006.01)
CPC F16C 43/045 (2013.01) [B60B 27/0073 (2013.01); B60B 27/0094 (2013.01); F16C 19/186 (2013.01); B60B 2320/10 (2013.01); F16C 33/723 (2013.01); F16C 2326/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A manufacturing method of a bearing device for a vehicle wheel, the bearing device for a vehicle wheel including:
an outer member having a plurality of rows of outer raceway surfaces formed on an inner periphery;
an inner member on which a plurality of rows of inner raceway surfaces facing the plurality of rows of outer raceway surfaces are formed;
a plurality of rows of rolling bodies rollably accommodated between both the outer raceway surfaces of the outer member and the inner raceway surfaces of the inner member; and
a first sealing member to be fitted into an opening portion on an outer side of the outer member and a second sealing member to be fitted into an opening portion on an inner side of the outer member, the manufacturing method comprising:
a pressure adjusting step of enclosing, in a work chamber, the bearing device for a vehicle wheel to which one of the first sealing member on the outer side or the second sealing member on the inner side is fitted, the work chamber being provided for adjusting an atmospheric pressure in the work chamber, and adjusting a pressure in the work chamber to a predetermined atmospheric pressure according to an environment of a use area of the bearing device for a vehicle wheel; and
a sealing step of fitting another of the first sealing member or the second sealing member to an opening portion on a side of the outer member where the one of the first sealing member or the second sealing member is not fitted in the work chamber in which the pressure has been adjusted,
wherein, in the pressure adjusting step, the pressure is adjusted after an atmosphere in the work chamber is replaced with an atmosphere having a predetermined composition.