Assertion: lubrication | /r/HasProperty | required
Facets:
value: between the rollers
type: LOCATION
value: between bushings
type: LOCATION
Source sentences:
text: Lubrication is required between the rollers and bushings, but other important areas to lubricate are the pin and bushing surfaces, which articulate with each other while the chain is under full load.
text: Where speeds are high, inertial forces become important, and the best lubrication is required.