Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)

When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary t...
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Autor*in:	Daisuke SUZUKI [verfasserIn] Ken TAKAHASHI [verfasserIn] Fumihiro ITOIGAWA [verfasserIn] Satoru MAEGAWA [verfasserIn]

Format:	E-Artikel
Sprache:	Japanisch

Erschienen:	2022

Schlagwörter:	cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses

Übergeordnetes Werk:	In: Nihon Kikai Gakkai ronbunshu - The Japan Society of Mechanical Engineers, 2022, 88(2022), 911, Seite 22-00153-22-00153
Übergeordnetes Werk:	volume:88 ; year:2022 ; number:911 ; pages:22-00153-22-00153

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1299/transjsme.22-00153

Katalog-ID:	DOAJ086217720

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520			\|a When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results.
650		4	\|a cylindrical roller bearing
650		4	\|a cage wear
650		4	\|a contact forces between roller and cage pocket
650		4	\|a cage center displacement
650		4	\|a impulses
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author_variant	d s ds k t kt f i fi s m sm
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allfields	10.1299/transjsme.22-00153 doi (DE-627)DOAJ086217720 (DE-599)DOAJ30a46b62bf9a4cc4beb69ed25b0e050c DE-627 ger DE-627 rakwb jpn TJ1-1570 TA213-215 Daisuke SUZUKI verfasserin aut Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results. cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements Ken TAKAHASHI verfasserin aut Fumihiro ITOIGAWA verfasserin aut Satoru MAEGAWA verfasserin aut In Nihon Kikai Gakkai ronbunshu The Japan Society of Mechanical Engineers, 2022 88(2022), 911, Seite 22-00153-22-00153 (DE-627)1028882408 21879761 nnns volume:88 year:2022 number:911 pages:22-00153-22-00153 https://doi.org/10.1299/transjsme.22-00153 kostenfrei https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c kostenfrei https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en kostenfrei https://doaj.org/toc/2187-9761 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 88 2022 911 22-00153-22-00153
spelling	10.1299/transjsme.22-00153 doi (DE-627)DOAJ086217720 (DE-599)DOAJ30a46b62bf9a4cc4beb69ed25b0e050c DE-627 ger DE-627 rakwb jpn TJ1-1570 TA213-215 Daisuke SUZUKI verfasserin aut Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results. cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements Ken TAKAHASHI verfasserin aut Fumihiro ITOIGAWA verfasserin aut Satoru MAEGAWA verfasserin aut In Nihon Kikai Gakkai ronbunshu The Japan Society of Mechanical Engineers, 2022 88(2022), 911, Seite 22-00153-22-00153 (DE-627)1028882408 21879761 nnns volume:88 year:2022 number:911 pages:22-00153-22-00153 https://doi.org/10.1299/transjsme.22-00153 kostenfrei https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c kostenfrei https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en kostenfrei https://doaj.org/toc/2187-9761 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 88 2022 911 22-00153-22-00153
allfields_unstemmed	10.1299/transjsme.22-00153 doi (DE-627)DOAJ086217720 (DE-599)DOAJ30a46b62bf9a4cc4beb69ed25b0e050c DE-627 ger DE-627 rakwb jpn TJ1-1570 TA213-215 Daisuke SUZUKI verfasserin aut Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results. cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements Ken TAKAHASHI verfasserin aut Fumihiro ITOIGAWA verfasserin aut Satoru MAEGAWA verfasserin aut In Nihon Kikai Gakkai ronbunshu The Japan Society of Mechanical Engineers, 2022 88(2022), 911, Seite 22-00153-22-00153 (DE-627)1028882408 21879761 nnns volume:88 year:2022 number:911 pages:22-00153-22-00153 https://doi.org/10.1299/transjsme.22-00153 kostenfrei https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c kostenfrei https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en kostenfrei https://doaj.org/toc/2187-9761 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 88 2022 911 22-00153-22-00153
allfieldsGer	10.1299/transjsme.22-00153 doi (DE-627)DOAJ086217720 (DE-599)DOAJ30a46b62bf9a4cc4beb69ed25b0e050c DE-627 ger DE-627 rakwb jpn TJ1-1570 TA213-215 Daisuke SUZUKI verfasserin aut Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results. cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements Ken TAKAHASHI verfasserin aut Fumihiro ITOIGAWA verfasserin aut Satoru MAEGAWA verfasserin aut In Nihon Kikai Gakkai ronbunshu The Japan Society of Mechanical Engineers, 2022 88(2022), 911, Seite 22-00153-22-00153 (DE-627)1028882408 21879761 nnns volume:88 year:2022 number:911 pages:22-00153-22-00153 https://doi.org/10.1299/transjsme.22-00153 kostenfrei https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c kostenfrei https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en kostenfrei https://doaj.org/toc/2187-9761 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 88 2022 911 22-00153-22-00153
allfieldsSound	10.1299/transjsme.22-00153 doi (DE-627)DOAJ086217720 (DE-599)DOAJ30a46b62bf9a4cc4beb69ed25b0e050c DE-627 ger DE-627 rakwb jpn TJ1-1570 TA213-215 Daisuke SUZUKI verfasserin aut Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results. cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements Ken TAKAHASHI verfasserin aut Fumihiro ITOIGAWA verfasserin aut Satoru MAEGAWA verfasserin aut In Nihon Kikai Gakkai ronbunshu The Japan Society of Mechanical Engineers, 2022 88(2022), 911, Seite 22-00153-22-00153 (DE-627)1028882408 21879761 nnns volume:88 year:2022 number:911 pages:22-00153-22-00153 https://doi.org/10.1299/transjsme.22-00153 kostenfrei https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c kostenfrei https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en kostenfrei https://doaj.org/toc/2187-9761 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 88 2022 911 22-00153-22-00153
language	Japanese
source	In Nihon Kikai Gakkai ronbunshu 88(2022), 911, Seite 22-00153-22-00153 volume:88 year:2022 number:911 pages:22-00153-22-00153
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topic_facet	cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses Mechanical engineering and machinery Engineering machinery, tools, and implements
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callnumber-first	T - Technology
author	Daisuke SUZUKI
spellingShingle	Daisuke SUZUKI misc TJ1-1570 misc TA213-215 misc cylindrical roller bearing misc cage wear misc contact forces between roller and cage pocket misc cage center displacement misc impulses misc Mechanical engineering and machinery misc Engineering machinery, tools, and implements Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)
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topic_title	TJ1-1570 TA213-215 Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage) cylindrical roller bearing cage wear contact forces between roller and cage pocket cage center displacement impulses
topic	misc TJ1-1570 misc TA213-215 misc cylindrical roller bearing misc cage wear misc contact forces between roller and cage pocket misc cage center displacement misc impulses misc Mechanical engineering and machinery misc Engineering machinery, tools, and implements
topic_unstemmed	misc TJ1-1570 misc TA213-215 misc cylindrical roller bearing misc cage wear misc contact forces between roller and cage pocket misc cage center displacement misc impulses misc Mechanical engineering and machinery misc Engineering machinery, tools, and implements
topic_browse	misc TJ1-1570 misc TA213-215 misc cylindrical roller bearing misc cage wear misc contact forces between roller and cage pocket misc cage center displacement misc impulses misc Mechanical engineering and machinery misc Engineering machinery, tools, and implements
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title	Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)
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title_full	Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)
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author-letter	Daisuke SUZUKI
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title_sort	contact forces between roller and cage pocket in cylindrical roller bearings (consideration based on dynamic behavior between roller and cage)
callnumber	TJ1-1570
title_auth	Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)
abstract	When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results.
abstractGer	When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results.
abstract_unstemmed	When rolling bearings are used under light loads and high rotational speeds, their life may be determined by cage wear rather than raceway flaking. Under these operating conditions, the life and reliability of the bearings can be improved by reducing cage wear. To reduce cage wear, it is necessary to measure and analyze the contact forces acting on the cage due to the interactions between the roller and the cage pocket. In this paper, a measurement system capable of measuring “the contact forces between the roller and the cage pocket” and “the cage center displacement” at the same time has been constructed. Measurements have been conducted using this system for a cylindrical roller bearing at various rotational speeds. As a result of measuring the contact forces, it has been found that “the force to accelerate the cage” is generated continuously in the load zone of the bearing, while “the force to decelerate the cage” is generated intermittently in the non-load zone of the bearing. Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. The analysis based on this model created is in general agreement with the impulses obtained from the measurement results.
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title_short	Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)
url	https://doi.org/10.1299/transjsme.22-00153 https://doaj.org/article/30a46b62bf9a4cc4beb69ed25b0e050c https://www.jstage.jst.go.jp/article/transjsme/88/911/88_22-00153/_pdf/-char/en https://doaj.org/toc/2187-9761
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Since the contact forces are not constant during one rotation of the cage, the impulses due to the interactions have been calculated to evaluate not only the contact force but also the contact time. Results indicate that the impulses per rotation of the cage caused by each force show a tendency to decrease up to 2000 min-1 of rotational speed and not to almost change at higher speeds. In addition, it has been found that the cage center displacement measured becomes a constant velocity circular motion when the rotational speed exceeds 2000 min-1. These findings suggest that the contact between the roller and the cage can be easily modeled when the rotational speed exceeds 2000 min-1. 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Contact forces between roller and cage pocket in cylindrical roller bearings (Consideration based on dynamic behavior between roller and cage)

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