Selected thermoplastic bearing materials for use at elevated temperatures

Friction and wear studies of polyetherimide composites under oscillating sliding condition against steel cylinder

“…Lancaster also reported that abrasive filler can damage the counterface by increasing their surface roughness and leads to an increased rate of wear in the composites. Conversely, Häger et al reported a decrease in wear rate of glass fiber filled PEEK composite during dry sliding condition and suggested that glass fibers have a mild polishing effect on the steel surface, reducing thus, the roughness of counterface and its abrasive effect on the polymer wear.…”

Friction and wear studies of polyetherimide composites under oscillating sliding condition against steel cylinder

“…Lancaster also reported that abrasive filler can damage the counterface by increasing their surface roughness and leads to an increased rate of wear in the composites. Conversely, Häger et al reported a decrease in wear rate of glass fiber filled PEEK composite during dry sliding condition and suggested that glass fibers have a mild polishing effect on the steel surface, reducing thus, the roughness of counterface and its abrasive effect on the polymer wear.…”

Polyesterimide composites as a sensor material for sliding bearings

“…Polyesterimide based composites exhibit favourable mechanical properties in comparison with other polymer composites [9][10][11][12]. This includes toughness, compressive strength and thermal resistance up to 350 8C.…”

“…Polyesterimide and polyimides compared with other sliding polymers have higher wear resistance (particularly at high temperatures) and high friction coefficient against steel 0,6-0,8 [12]. The lubricating additives considerably reduce the friction coefficient to a value of 0,2-0,3, similarly as in other bearing materials [12,22].…”

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

“…In high-temperature tests (200-250 °C chamber temperature), substantial frictional heating of PEEK samples suggests the potential formation of a thin polymer melt layer at the contact interface, which is hypothesized to stabilize the friction process under these extreme conditions. [20,21] Friction and wear of PTFE have been characterized across a broad temperature range, from -100 to 250 °C, using a pin-on-disk setup under unidirectional sliding. In the semicrystalline thermoplastics, maximum friction is anticipated to occur within the temperature ranges where phase transitions in the materials take place, [22] and the adhesive component of friction plays a more significant role across a wider range of contact loads compared to amorphous thermoplastics.…”

Friction and wear studies of polyetherimide composites under oscillating sliding condition against steel cylinder

“…Lancaster also reported that abrasive filler can damage the counterface by increasing their surface roughness and leads to an increased rate of wear in the composites. Conversely, Häger et al reported a decrease in wear rate of glass fiber filled PEEK composite during dry sliding condition and suggested that glass fibers have a mild polishing effect on the steel surface, reducing thus, the roughness of counterface and its abrasive effect on the polymer wear.…”

Polyesterimide composites as a sensor material for sliding bearings

“…Polyesterimide based composites exhibit favourable mechanical properties in comparison with other polymer composites [9][10][11][12]. This includes toughness, compressive strength and thermal resistance up to 350 8C.…”

“…Polyesterimide and polyimides compared with other sliding polymers have higher wear resistance (particularly at high temperatures) and high friction coefficient against steel 0,6-0,8 [12]. The lubricating additives considerably reduce the friction coefficient to a value of 0,2-0,3, similarly as in other bearing materials [12,22].…”

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

“…In high-temperature tests (200-250 °C chamber temperature), substantial frictional heating of PEEK samples suggests the potential formation of a thin polymer melt layer at the contact interface, which is hypothesized to stabilize the friction process under these extreme conditions. [20,21] Friction and wear of PTFE have been characterized across a broad temperature range, from -100 to 250 °C, using a pin-on-disk setup under unidirectional sliding. In the semicrystalline thermoplastics, maximum friction is anticipated to occur within the temperature ranges where phase transitions in the materials take place, [22] and the adhesive component of friction plays a more significant role across a wider range of contact loads compared to amorphous thermoplastics.…”

Friction and wear studies of polyetherimide composites under oscillating sliding condition against steel cylinder

“…Lancaster also reported that abrasive filler can damage the counterface by increasing their surface roughness and leads to an increased rate of wear in the composites. Conversely, Häger et al reported a decrease in wear rate of glass fiber filled PEEK composite during dry sliding condition and suggested that glass fibers have a mild polishing effect on the steel surface, reducing thus, the roughness of counterface and its abrasive effect on the polymer wear.…”

Polyesterimide composites as a sensor material for sliding bearings

“…Polyesterimide based composites exhibit favourable mechanical properties in comparison with other polymer composites [9][10][11][12]. This includes toughness, compressive strength and thermal resistance up to 350 8C.…”

“…Polyesterimide and polyimides compared with other sliding polymers have higher wear resistance (particularly at high temperatures) and high friction coefficient against steel 0,6-0,8 [12]. The lubricating additives considerably reduce the friction coefficient to a value of 0,2-0,3, similarly as in other bearing materials [12,22].…”

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

“…In high-temperature tests (200-250 °C chamber temperature), substantial frictional heating of PEEK samples suggests the potential formation of a thin polymer melt layer at the contact interface, which is hypothesized to stabilize the friction process under these extreme conditions. [20,21] Friction and wear of PTFE have been characterized across a broad temperature range, from -100 to 250 °C, using a pin-on-disk setup under unidirectional sliding. In the semicrystalline thermoplastics, maximum friction is anticipated to occur within the temperature ranges where phase transitions in the materials take place, [22] and the adhesive component of friction plays a more significant role across a wider range of contact loads compared to amorphous thermoplastics.…”