| Share | Phrase |
| 22.86% | frictional [physical/chemical] engagement |
| 17.14% | frictional [physical/chemical] force |
| 9.48% | frictional [physical/chemical] contact |
| 9.06% | frictional [physical/chemical] coefficient |
| 4.96% | frictional [physical/chemical] resistance |
| 3.30% | frictional [physical/chemical] surface |
| 3.08% | frictional [physical/chemical] material |
| 2.74% | frictional [physical/chemical] loss |
| 1.62% | frictional [physical/chemical] wear |
| 1.51% | frictional [physical/chemical] member |
| 1.44% | frictional [physical/chemical] tm |
| 1.17% | frictional [physical/chemical] heat |
| 1.08% | frictional [physical/chemical] fit |
| 1.05% | frictional [physical/chemical] value |
| 0.88% | frictional [physical/chemical] connection |
| 0.87% | frictional [physical/chemical] drag |
| 0.81% | frictional [physical/chemical] characteristic |
| 0.80% | frictional [physical/chemical] element |
| 0.79% | frictional [physical/chemical] side |
| 0.74% | frictional [physical/chemical] acting |
| 0.72% | frictional [physical/chemical] interaction |
| 0.68% | frictional [physical/chemical] dampening |
| 0.61% | frictional [physical/chemical] interengagement |
| 0.59% | frictional [physical/chemical] relationship |
| 0.55% | frictional [physical/chemical] torque |
| 0.54% | frictional [physical/chemical] head |
| 0.54% | frictional [physical/chemical] point |
| 0.48% | frictional [physical/chemical] clutch |
| 0.44% | frictional [physical/chemical] area |
| 0.42% | frictional [physical/chemical] braking |
| 0.39% | frictional [physical/chemical] effect |
| 0.38% | frictional [physical/chemical] load |
| 0.38% | frictional [physical/chemical] means |
| 0.36% | frictional [physical/chemical] property |
| 0.36% | frictional [physical/chemical] ring |
| 0.36% | frictional [physical/chemical] hold |
| 0.36% | frictional [physical/chemical] road |
| 0.34% | frictional [physical/chemical] lining |
| 0.33% | frictional [physical/chemical] piece |
| 0.33% | frictional [physical/chemical] wheel |
| 0.32% | frictional [physical/chemical] grip |
| 0.32% | frictional [physical/chemical] inclusion |
| 0.31% | frictional [physical/chemical] plate |
| 0.31% | frictional [physical/chemical] feeling |
| 0.30% | frictional [physical/chemical] action |
| 0.25% | frictional [physical/chemical] relation |
| 0.25% | frictional [physical/chemical] clamping |
| 0.24% | frictional [physical/chemical] pressure |
| 0.23% | frictional [physical/chemical] liner |
| 0.21% | frictional [physical/chemical] abrasion |
| 0.21% | frictional [physical/chemical] counterforce |
| 0.20% | frictional [physical/chemical] pad |
| 0.19% | frictional [physical/chemical] brake |
| 0.19% | frictional [physical/chemical] strip |
| 0.19% | frictional [physical/chemical] sensor |
| 0.18% | frictional [physical/chemical] lock |
| 0.18% | frictional [physical/chemical] dissipation |
| 0.17% | frictional [physical/chemical] mechanism |
| 0.16% | frictional [physical/chemical] coupling |
| 0.16% | frictional [physical/chemical] damping |
| 0.16% | frictional [physical/chemical] condition |
| 0.15% | frictional [physical/chemical] portion |
| 0.15% | frictional [physical/chemical] disc |
| 0.12% | frictional [physical/chemical] device |