Results 111 to 120 of about 14,758 (215)

Supersonic transport lubrication system investigation, phase 2 Periodical report [PDF]

Evaluation tests of ball bearings, face seals, and lubricants for use on Mach 3 aircraft gas turbine engine ...
Rhoads, W. L.
core   +1 more source

Hybrid ML-Based Cutting Temperature Prediction in Hard Milling Under Sustainable Lubrication

Lubricants
The field of hard milling has recently witnessed growing interest in environmentally sustainable machining practices. Among these, Minimum Quantity Lubrication (MQL) has emerged as an effective strategy, offering not only reduced environmental impact but
Balasuadhakar Arumugam, Thirumalai Kumaran Sundaresan, Saood Ali   +2 more
doaj   +1 more source

Full-scale transmission testing to evaluate advanced lubricants [PDF]

Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500 hp helicopter transmission test stand. The testing was part of a lubrication program. The objectives are to develop and show a separate lubricant for
Decker, Harry J., Lewicki, David G., Shimski, John T.   +2 more
core   +1 more source

Sustainable Cooling Strategies in End Milling of AISI H11 Steel Based on ANFIS Model

Machines
In hard milling, there has been a significant surge in demand for sustainable machining techniques. Research indicates that the Minimum Quantity Lubrication (MQL) method is a promising approach to achieving sustainability in milling processes due to its ...
Arumugam Balasuadhakar, Sundaresan Thirumalai Kumaran, Saood Ali   +2 more
doaj   +1 more source

Performance of jet- and inner-ring-lubricated 35 millimeter bore ball bearings operating to 2.5 million DN [PDF]

Parametric tests were conducted with a 35 millimeter bore, angular contact ball bearing having a single outer land guided cage. Lubrication was achieved by flowing oil through axial grooves and radial holes machined in the inner ring of the bearing. Test
Schuller, F., T., Signer, H. R.
core   +1 more source

Numerical Simulation and Optimization of Oil Jet Lubrication for Rotorcraft Meshing Gears

International Journal of Simulation Modelling, 2018
Y. Dai, W. Wu, H. B. Zhou, J. Zhang, F. Y. Ma   +4 more
openaire   +1 more source

The role of oil-suspension phenomenon in oil-jet lubricated gears and bearings: an innovative numerical approach

Forschung im Ingenieurwesen
Abstract As the demand for higher power density and reliable mechanical gear transmissions grows, effective lubrication has become a critical design requirement. Optimizing lubricant supply not only reduces power losses and improves system efficiency but also lowers operating temperatures and enhances overall ...
openaire   +1 more source

Fatigue life of 120 mm bore ball bearings at 600 deg F with fluorocarbon, polyphenyl ether, and synthetic paraffinic base lubricants [PDF]

High temperature tests to determine fatigue life of 120mm bore ball bearings with fluorocarbon, polyphenyl ether, and synthetic base paraffin base ...
Anderson, W. J., Bamberger, E. N., Zaretsky, E. V.   +2 more
core   +1 more source

Operating limitations of high speed jet lubricated ball bearings [PDF]

A parametric study was performed with 120-mm bore angular-contact ball bearings having a nominal contact angle of 20 degrees. The bearings had either an inner- or an outer-race land riding cage, and lubrication was by recirculating oil jets which had ...
Bamberger, E. N., Signer, H., Zaretsky, E. V.   +2 more
core   +1 more source

Effect of filtration on rolling-element-bearing life in contaminated lubricant environment [PDF]

Fatigue tests were conducted on groups of 65 millimeter-bore ball bearings under four levels of filtration with and without a contaminated MIL-L-23699 lubricant. The baseline series used noncontaminated oil with 49 micron absolute filtration.
Loewenthal, S. H., Moyer, D. W., Sherlock, J. J.   +2 more
core   +1 more source