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Journal Articles

Expressions of Friction Force of a Four-Point Contact Linear Ball Bearing With Two Rows Under Low-Speed Operation

Hiroyuki Ohta, Yusuke Ueki

J. Tribol. October 2022, 144(10): 101502.

Paper No: TRIB-22-1017

DOI: https://doi.org/10.1115/1.4054399

Published Online: May 10, 2022

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Topics: Ball bearings, Bearings, Friction, Railroad passenger cars

Journal Articles

Friction Forces in a Linear-Guideway Type Recirculating Ball Bearing Under Grease Lubrication

Hiroyuki Ohta, Kazunori Oguma, Koji Takane, Soichiro Kato

J. Tribol. June 2021, 143(6): 064501.

Paper No: TRIB-20-1286

DOI: https://doi.org/10.1115/1.4048498

Published Online: October 13, 2020

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Topics: Bearings, Friction, Lubrication, Ball bearings

Journal Articles

Reduction of Sticking in a Linear-Guideway Type Recirculating Ball Bearing

Hiroyuki Ohta, Guillermo Andres Guajardo Dueñas, Yusuke Ueki

J. Tribol. February 2019, 141(2): 022202.

Paper No: TRIB-18-1123

DOI: https://doi.org/10.1115/1.4041210

Published Online: October 16, 2018

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Topics: Bearings, Deformation, Railroad passenger cars, Stress, Finite element methods, Ball bearings

Journal Articles

Erratum: “Effects of Grease Characteristics on Sound and Vibration of a Linear-Guideway Type Recirculating Ball Bearing” [ASME J. Tribol., 2016, 138(2), p. 021101; DOI: 10.1115/1.4031437]

Hiroyuki Ohta, Tatsuya Tsuruoka, Yukitoshi Fujinami, Soichiro Kato

J. Tribol. September 2017, 139(5): 057001.

Paper No: TRIB-16-1023

DOI: https://doi.org/10.1115/1.4036176

Published Online: May 24, 2017

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Topics: Ball bearings, Bearing design, Bearings, Rolling bearings, Vibration

Journal Articles

Erratum: “Load–Displacement Relationship of a Ball Bearing With Axial, Radial, and Angular Displacements for Both the Inner and Outer Rings” [ASME J. Tribol., 2016, 139(1), p. 011103; DOI: 10.1115/1.4033136]

Hiroyuki Ohta, Tomoya Sakaguchi, Masaharu Uchiumi

J. Tribol. September 2017, 139(5): 057002.

Paper No: TRIB-16-1393

DOI: https://doi.org/10.1115/1.4036178

Published Online: May 24, 2017

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Topics: Ball bearings, Bearing design, Bearings, Displacement, Rolling bearings, Stress

Journal Articles

Sticking of a Linear-Guideway Type Recirculating Ball Bearing

Hiroyuki Ohta, Genta Hanaoka, Yusuke Ueki

J. Tribol. May 2017, 139(3): 031103.

Paper No: TRIB-16-1101

DOI: https://doi.org/10.1115/1.4034961

Published Online: March 7, 2017

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Topics: Ball bearings, Bearings, Stress, Friction, Railroad passenger cars, Sliding friction

Journal Articles

Entrance Region Heat Transfer in a Channel With a Ribbed Wall

Koji Matsubara, Hiroyuki Ohta, Takahiro Miura

J. Heat Transfer. December 2016, 138(12): 122001.

Paper No: HT-15-1297

DOI: https://doi.org/10.1115/1.4034052

Published Online: August 2, 2016

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Topics: Entrance region, Heat, Heat transfer, Heat transfer coefficients, Statistics, Turbulence, Flow (Dynamics), Temperature, Skin friction (Fluid dynamics), Friction

Journal Articles

Load–Displacement Relationship of a Ball Bearing With Axial, Radial, and Angular Displacements for Both the Inner and Outer Rings

Hiroyuki Ohta, Tomoya Sakaguchi, Masaharu Uchiumi

J. Tribol. January 2017, 139(1): 011103.

Paper No: TRIB-15-1417

DOI: https://doi.org/10.1115/1.4033136

Published Online: July 20, 2016

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Topics: Ball bearings, Displacement, Stress

Journal Articles

Effects of Grease Characteristics on Sound and Vibration of a Linear-Guideway Type Recirculating Ball Bearing

Hiroyuki Ohta, Tatsuya Tsuruoka, Yukitoshi Fujinami, Soichiro Kato

J. Tribol. April 2016, 138(2): 021101.

Paper No: TRIB-15-1176

DOI: https://doi.org/10.1115/1.4031437

Published Online: October 15, 2015

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Topics: Bearings, Sound pressure, Vibration, Ball bearings, Viscosity

Journal Articles

Carriage Drift in Linear-Guideway Type Roller Bearings

Hiroyuki Ohta, Taiki Kato, Soichiro Kato, Hideyuki Tajimi

J. Tribol. April 2015, 137(2): 024505.

Paper No: TRIB-14-1079

DOI: https://doi.org/10.1115/1.4029641

Published Online: April 1, 2015

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Topics: Railroad passenger cars, Roller bearings, Rollers

Journal Articles

Effects of Contact Ratio on Transmission Errors of Trochoidal Gears

Hiroyuki Ohta, Masahumi Kurita, Kengo Kishi

J. Tribol. July 2014, 136(3): 031101.

Paper No: TRIB-13-1137

DOI: https://doi.org/10.1115/1.4027130

Published Online: April 1, 2014

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Topics: Errors, Gears, Rollers

Journal Articles

Vibration and Acoustic Emission Measurements Evaluating the Separation of the Balls and Raceways With Lubricating Film in a Linear Bearing Under Grease Lubrication

Hiroyuki Ohta, Yuko Nakajima, Soichiro Kato, Hideyuki Tajimi

J. Tribol. October 2013, 135(4): 041104.

Paper No: TRIB-12-1113

DOI: https://doi.org/10.1115/1.4024936

Published Online: August 6, 2013

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Topics: Bearings, Rails, Separation (Technology), Vibration, Viscosity, Railroad passenger cars, Lubrication, Temperature

Journal Articles

Effects of Eccentricity on Transmission Errors of Trochoidal Gears

Hiroyuki Ohta, Ayumu Yamakawa, Yoshitake Katayama

J. Tribol. January 2012, 134(1): 011102.

DOI: https://doi.org/10.1115/1.4005645

Published Online: March 6, 2012

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Topics: Errors, Gears, Rollers

Proceedings Papers

Effects of Grease Types on Vibration and Acoustic Emission of Defective Linear-Guideway Type Recirculating Ball Bearings

Hiroyuki Ohta, Shinya Hayashi, Soichiro Kato, Yutaka Igarashi

Proc. ASME. IJTC2010, STLE/ASME 2010 International Joint Tribology Conference, 187-189, October 17–20, 2010

Paper No: IJTC2010-41053

DOI: https://doi.org/10.1115/IJTC2010-41053

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Topics: Acoustic emissions, Ball bearings, Vibration, Bearings, Viscosity, Lubrication

Journal Articles

Effects of Grease Types on Vibration and Acoustic Emission of Defective Linear-Guideway Type Recirculating Ball Bearings

Hiroyuki Ohta, Shinya Hayashi, Soichiro Kato, Yutaka Igarashi

J. Tribol. April 2011, 133(2): 021102.

DOI: https://doi.org/10.1115/1.4003302

Published Online: March 22, 2011

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Topics: Acoustic emissions, Ball bearings, Bearings, Vibration, Viscosity, Railroad passenger cars, Spectra (Spectroscopy), Impact testing

Journal Articles

Vertical Stiffnesses of Preloaded Linear Guideway Type Ball Bearings Incorporating the Flexibility of the Carriage and Rail

Hiroyuki Ohta, Keisuke Tanaka

J. Tribol. January 2010, 132(1): 011102.

DOI: https://doi.org/10.1115/1.4000277

Published Online: November 10, 2009

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Topics: Deformation, Railroad passenger cars, Rails, Stiffness, Stress, Ball bearings, Bearings

Journal Articles

Vibration and Acoustic Emission of Linear-Guideway Type Recirculating Ball Bearings With a Millimeter-Sized Artificial Defect in the Carriage

Hiroyuki Ohta, Kazuya Matsuura, Soichiro Kato, Yutaka Igarashi

J. Tribol. January 2010, 132(1): 011101.

DOI: https://doi.org/10.1115/1.4000271

Published Online: November 9, 2009

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Topics: Acoustic emissions, Ball bearings, Bearings, Railroad passenger cars, Vibration, Collisions (Physics)

Proceedings Papers

Vibration and Acoustic Emission of Linear-Guideway Type Recirculating Linear Ball Bearings With One Artificial Defect in the Carriage

Hiroyuki Ohta, Kazuya Matsuura, Soichro Kato, Yutaka Igarashi

Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 441-443, October 20–22, 2008

Paper No: IJTC2008-71269

DOI: https://doi.org/10.1115/IJTC2008-71269

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Topics: Acoustic emissions, Ball bearings, Railroad passenger cars, Vibration, Bearings, Machinery, Failure

Proceedings Papers

A Design of Crowning to Reduce Ball Passage Vibrations of a Linear Guideway Type Recirculating Linear Ball Bearing

Hiroyuki Ohta, Soichiro Kato, Jun Matsumoto, Kenta Nakano

Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 749-755, October 24–27, 2004

Paper No: TRIB2004-64012

DOI: https://doi.org/10.1115/TRIB2004-64012

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Topics: Ball bearings, Bearings, Design, Vibration

Proceedings Papers

Effects of Ball Groupings on Ball Passage Vibrations of a Linear Guideway Type Ball Bearing: Pitching and Yawing Ball Passage Vibrations

Hiroyuki Ohta, Yoshiki Kitajima, Soichiro Kato, Yutaka Igarashi

Proc. ASME. IJTC2006, Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics, 525-532, October 23–25, 2006

Paper No: IJTC2006-12017

DOI: https://doi.org/10.1115/IJTC2006-12017

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Topics: Ball bearings, Vibration, Yaw, Computational methods, Lasers

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