A study on strength design methods for plastic gears. Estimation of operation life of plastic gears in elevated-temperature environment.

Effect of rotational speed on the performance of unreinforced and glass fiber reinforced Nylon 6 spur gears

“…Liu et al [13] suggested analytical techniques to predict the flank temperature of thermoplastic spur gears and measured the flank temperature using a infrared pyrometer. Performance of polymer gears at elevated temperature conditions was investigated by few researchers [14][15][16]. Tsukamoto et al [14] conducted the performance test at elevated temperature environment on machined Nylon gear to estimate the service life.…”

“…Performance of polymer gears at elevated temperature conditions was investigated by few researchers [14][15][16]. Tsukamoto et al [14] conducted the performance test at elevated temperature environment on machined Nylon gear to estimate the service life. Tests on acetal spur gears at various temperatures were conducted and the need for temperature correction factor in the design is discussed [15].…”

Gear fatigue life and thermomechanical behavior of novel green and bio-composite materials VS high-performance thermoplastics

“…The simplest and classical model used in the temperature and PV estimation combines these two variables into one: the product PV. Some authors have estimated the temperature increase is a linear function of PV [45]. The results using this classical approach are shown in Table 5 and graphically illustrated in Fig.…”

“…The lower correlation of the acetal gears might indicate different behavior. In fact, acetal and nylon gears are often modeled using a model with only one coefficient for the product of P and V [45], which will be discussed further. After proceeding to the raw data treatment and bi-linear regressions, a graphical visualization of the experimental data and the approximation can be observed in Fig.…”