The Experts below are selected from a list of 4512 Experts worldwide ranked by ideXlab platform
Ramiro C Martins - One of the best experts on this subject based on the ideXlab platform.
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tandem tapered roller bearings no load torque loss in a rear axle gear transmission
Tribology International, 2021Co-Authors: Justino A O Cruz, Pedro Marques, Jorge H O Seabra, Ramiro C MartinsAbstract:Abstract The main no-load power loss source of a rear axle is the pre-loaded Pinion tapered roller bearings, as concluded in a previous work. Therefore, the Pinion roller bearings torque loss was studied in detail, where the influence of several parameters was considered, such as, the starting torque of the Pinion tapered roller bearings, the oil level, the lubricant viscosity and the rotational speed. Due to the nature of the assembly of the Pinion shaft assembly, pre-load in the tapered roller bearings is difficult to measure, however the starting torque of this assembly can be easily measured. For this reason, in this work a rolling bearing torque loss empirical equation was developed, where it uses as input parameters the starting torque, the oil dynamic viscosity, operating speed and the rolling bearing mean diameter and width.
Justino A O Cruz - One of the best experts on this subject based on the ideXlab platform.
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tandem tapered roller bearings no load torque loss in a rear axle gear transmission
Tribology International, 2021Co-Authors: Justino A O Cruz, Pedro Marques, Jorge H O Seabra, Ramiro C MartinsAbstract:Abstract The main no-load power loss source of a rear axle is the pre-loaded Pinion tapered roller bearings, as concluded in a previous work. Therefore, the Pinion roller bearings torque loss was studied in detail, where the influence of several parameters was considered, such as, the starting torque of the Pinion tapered roller bearings, the oil level, the lubricant viscosity and the rotational speed. Due to the nature of the assembly of the Pinion shaft assembly, pre-load in the tapered roller bearings is difficult to measure, however the starting torque of this assembly can be easily measured. For this reason, in this work a rolling bearing torque loss empirical equation was developed, where it uses as input parameters the starting torque, the oil dynamic viscosity, operating speed and the rolling bearing mean diameter and width.
Ignacio Gonzalez-perez - One of the best experts on this subject based on the ideXlab platform.
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Computational approach to design face-milled spiral bevel gear drives with favorable conditions of meshing and contact
Meccanica, 2018Co-Authors: Alfonso Fuentes-aznar, Ramon Ruiz-orzaez, Ignacio Gonzalez-perezAbstract:The micro-geometry of the tooth surfaces of spiral bevel and hypoid Pinions has to be fine-adjusted to obtain enhanced meshing and contact characteristics during the meshing process with their corresponding mating gears. In this paper, a new methodology is proposed to design face-milled spiral bevel gear drives to, firstly, derive favorable orientation and dimensions of the contact pattern between the mating surfaces of the gears and, secondly, obtain a predesigned parabolic function of negative transmission errors with limited magnitude of maximum transmission errors. The proposed approach is based on the definition of the desired topography for the active surfaces of the Pinion followed by a numerical derivation of their finishing machine-tool settings through a bound-constrained optimization algorithm. Increasing mechanical strength and reducing the levels of noise and vibration of face-milled spiral bevel gear drives constitute the main objectives of the proposed design process. A numerical example is provided to illustrate the applicability of the developed theory .
Jorge H O Seabra - One of the best experts on this subject based on the ideXlab platform.
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tandem tapered roller bearings no load torque loss in a rear axle gear transmission
Tribology International, 2021Co-Authors: Justino A O Cruz, Pedro Marques, Jorge H O Seabra, Ramiro C MartinsAbstract:Abstract The main no-load power loss source of a rear axle is the pre-loaded Pinion tapered roller bearings, as concluded in a previous work. Therefore, the Pinion roller bearings torque loss was studied in detail, where the influence of several parameters was considered, such as, the starting torque of the Pinion tapered roller bearings, the oil level, the lubricant viscosity and the rotational speed. Due to the nature of the assembly of the Pinion shaft assembly, pre-load in the tapered roller bearings is difficult to measure, however the starting torque of this assembly can be easily measured. For this reason, in this work a rolling bearing torque loss empirical equation was developed, where it uses as input parameters the starting torque, the oil dynamic viscosity, operating speed and the rolling bearing mean diameter and width.
Pedro Marques - One of the best experts on this subject based on the ideXlab platform.
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tandem tapered roller bearings no load torque loss in a rear axle gear transmission
Tribology International, 2021Co-Authors: Justino A O Cruz, Pedro Marques, Jorge H O Seabra, Ramiro C MartinsAbstract:Abstract The main no-load power loss source of a rear axle is the pre-loaded Pinion tapered roller bearings, as concluded in a previous work. Therefore, the Pinion roller bearings torque loss was studied in detail, where the influence of several parameters was considered, such as, the starting torque of the Pinion tapered roller bearings, the oil level, the lubricant viscosity and the rotational speed. Due to the nature of the assembly of the Pinion shaft assembly, pre-load in the tapered roller bearings is difficult to measure, however the starting torque of this assembly can be easily measured. For this reason, in this work a rolling bearing torque loss empirical equation was developed, where it uses as input parameters the starting torque, the oil dynamic viscosity, operating speed and the rolling bearing mean diameter and width.
