Effects of the Cage Pocket Clearances on Motion Characteristics of Cylindrical Roller Bearings

ZHANG Kang; LI Chao; HUANG Yanqin; MA Yunjiao

doi:10.21656/1000-0887.460023

Volume 47 Issue 4

Apr. 2026

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Article Navigation > Applied Mathematics and Mechanics > 2026 > 47(4): 440-453

ZHANG Kang, LI Chao, HUANG Yanqin, MA Yunjiao. Effects of the Cage Pocket Clearances on Motion Characteristics of Cylindrical Roller Bearings[J]. Applied Mathematics and Mechanics, 2026, 47(4): 440-453. doi: 10.21656/1000-0887.460023

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Effects of the Cage Pocket Clearances on Motion Characteristics of Cylindrical Roller Bearings

doi: 10.21656/1000-0887.460023

1. School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, P.R.China;
2. R&D Department, Guizhou Aerospace Winstar Intelligent Transmission Co., Ltd., Zunyi, Guizhou 563114, P.R.China

Received Date: 2025-02-13
Rev Recd Date: 2025-04-30

Available Online: 2026-04-30

Abstract

Abstract

The clearance in the cage pocket of cylindrical roller bearings influences the kinematic characteristics such as slip and collision between the rollers and the cage, as well as the overall vibration of the bearing. the limitation of traditional dynamic models solely considering viscous drag effects of lubricant on rollers for cylindrical roller bearings, was addressed. Instead, the lubricant was described as a timevarying friction coefficient related to the contact force between the rollers and raceways, along with flow resistances and resistance torques on the cage. Additionally, nonlinear spring and damping elements were employed to simulate the collision contacts between the rollers and the cage, highlighting the impacts of the pocket clearance. The accuracy of the proposed model was validated, and the influences of the cage pocket clearance on the kinematic characteristics of the rollercage speed, slip, and collision, as well as the vibration characteristics of the bearing, were investigated. Simulation results indicate that, as the cage pocket clearance increases within the range of 0.1 mm to 0.7 mm, the cage slip rate rises, leading to more severe speed fluctuations and compromising cage stability. Simultaneously, the roller’s spin slip rate decreases, which reduces the collision frequency between the roller and the front and rear ends of the cage pocket, while the collision force increases. Furthermore, the overall vibration of the bearing intensifies with the increasing pocket clearance. The study can provide valuable insights for the design and failure analysis of cylindrical roller bearings.
- cylindrical roller bearing,
- cage,
- pocket clearance,
- slippage,
- dynamic model

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References(25)

References

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