公开(公告)号：EP3936847A1

公开(公告)日：2022-01-12

申请号：EP20766480.6

申请日：2020-02-28

申请人： NTN Corporation

发明人： TAKUBO, Takayasu ,  OWADA, Takayuki ,  KATAYAMA, Akihiko

IPC分类号： G01L5/00 ,  F16C19/18 ,  F16C25/08 ,  F16C33/78 ,  F16C43/04

摘要： Provided is a preload inspection method for a wheel bearing device enabling more accurate checking of preload. The invention comprises: a press-fitting step S02 for press-fitting an inner ring 4 to a small-diameter stepped part 3a; a first bearing preload value calculation step S03 for calculating a first bearing preload value P1 on the basis of a first axial direction negative clearance G1; a first rotating torque measurement step S05 for measuring a first rotating torque Ta after the press-fitting step; a swaging step S06 for swaging the small-diameter stepped part to the inner ring after the first rotating torque measurement step; a second bearing preload value calculation step S07 for calculating a second bearing preload value P2 on the basis of a second axial direction negative clearance G2; a second rotating torque measurement step S08 for measuring a second rotating torque Tb after the swaging step; a third bearing preload value calculation step S09 for calculating a third bearing preload value P3 by adding, to the first bearing preload value, a preload change amount ΔP based on a differential torque ΔT between the first rotating torque and the second rotating torque; and a determination step S10 for determining the suitability of the preload from the second bearing preload value and the third bearing preload value.

公开(公告)号：EP2532847B1

公开(公告)日：2018-08-08

申请号：EP10845271.5

申请日：2010-12-20

申请人： NTN Corporation

发明人： KATAYAMA, Akihiko ,  TERADA, Takanori ,  YAMADA, Haruki

IPC分类号： F01M1/06 ,  F01M1/08 ,  F01M1/16 ,  F01M9/10 ,  F02F1/24 ,  F16C3/14 ,  F16C9/02 ,  F16C9/04 ,  F16C19/26 ,  F16C19/46 ,  F16C33/46 ,  F16C33/66 ,  F16H53/02 ,  F16N7/38 ,  F16C33/78 ,  F16C7/02 ,  F01M11/02

CPC分类号： F16C19/466 ,  F01M1/08 ,  F01M9/102 ,  F01M2001/062 ,  F01M2011/026 ,  F01M2011/027 ,  F16C7/023 ,  F16C9/04 ,  F16C33/46 ,  F16C33/6659 ,  F16C33/6674 ,  F16C33/7809 ,  F16C33/7893 ,  F16C2360/22

摘要： An object of the present invention is to provide an engine lubrication device which includes needle bearings thereby uses a reduced amount of lubricant, and yet has no risk for shortage of lubricant in the piston sliding portion. A bearing oil-supply path 21 supplies lubricant to a journal shaft 3 disposed on an upstream side and a conrod large-end bearing 6 disposed on a downstream side. Separately from this, a sliding portion oil-supply path 33 supplies lubricant to a conrod small-end bearing 8 and the piston sliding portion 14. The journal bearing 3 and the conrod large-end bearing 6 are provided by needle bearings 40, 41 respectively. The needle bearing 40 on the upstream side has a lubrication hole 48 of a reduced diameter to limit the amount of lubricant supplied to these needle bearings 40, 41.

公开(公告)号：EP2085627A1

公开(公告)日：2009-08-05

申请号：EP07830093.6

申请日：2007-10-18

申请人： NTN Corporation

发明人： OISHI, Shinji ,  YAMADA, Haruki ,  KATAYAMA, Akihiko

IPC分类号： F16C33/58 ,  F16C33/34 ,  F16C33/46 ,  F16D65/18

CPC分类号： F16C33/46 ,  F16C19/26 ,  F16C19/502 ,  F16C33/4605 ,  F16C33/467 ,  F16C33/585 ,  F16C33/62 ,  F16C33/64 ,  F16C2361/45 ,  F16D65/18 ,  F16D2121/14 ,  F16D2125/32

摘要： An outer ring for rocking bearing (11a) includes a raceway surface (12a) on the inner diameter side and has flange parts (13a) and (13b) provided by bending axial both ends to the inner diameter side. The flange parts (13a) and (13b) are provided with bent parts (17a) and (17b) axially bent toward the raceway surface (12a) side so as to enfold a retainer arranged on the inner diameter side. Thus, the retainer can be enfolded by the bent parts (17a) and (17b). Therefore, even when the retainer comes to be moved to the inner diameter side of the outer ring for rocking bearing (11a), the retainer is caught by the bent parts (17a) and (17b), so that the movement of the retainer to the inner diameter side is restricted and rollers and the retainer can be prevented from dropping off.

摘要翻译： 用于摆动轴承（11a）的外圈包括位于内径侧的滚道表面（12a），并且具有通过将轴向两端向内径侧弯曲而设置的凸缘部分（13a）和（13b）。 凸缘部分13a和13b设置有朝着滚道表面12a轴向弯曲的弯曲部分17a和17b，以包围布置在内径侧的保持器。 因此，保持器可以由弯曲部分（17a）和（17b）包围。 因此，即使当保持器移动到摇摆轴承（11a）的外环的内径侧时，保持器也被弯曲部分（17a）和（17b）卡住，从而保持器移动到 内径侧受到限制，可以防止滚子和保持器脱落。