(Alone or in Combinations)

FUNCTIONS	HOW
Wheel	Round scroller-ws-color.jpg
Wheel	Flat-sided Fig. 09
Wheel	Oval Fig. 07
Bearing	Greaseless (can be FLEXIBLE) Fig. 28a
Pulley	Ratios Fig. 54
Crank	Crane-winch, fishing-reel ... Fig. 53
Hinge		...Underwater or micro-gravity Fig.
Cam	Complex motions Fig. 07
"Stair climber"		Flat-sided rollers Fig.
Chain + sprocket		Greaseless replacement Fig.
Gear	Much better contact-patch Fig. 02a
U.joint		Two hinges connected at 90 degrees Fig.
Flywheel	Fig. 69
Switch	Fig. 21
Dial	Precise dial-in-dial micro-movements Fig. 22
Valve	Micro-precision roller-to-belt positioning Fig. 19a
Brake	As hollow-roller expanding insert to frame Fig. 39
Clutch		As hollow-roller expanding insert to shaft Fig.
Rolamite	Linear motions Rolamite graphic
Planetary drive		With multi-inputs/outputs + ratios (no backlash) Fig.
Variable ratio	With expanding/contacting pair of rollers Fig 23a1
"Rack + pinion"		Fig.
Extruder		Fig.
Inserts
Electro-magnetic		With coil/iron /magn inserts in hollow-rollers Fig.
Impellers !		Pumps, propulsion ... Fig.
Compression		Variably-pitched screw insert Fig.
Heat exchange		Hollow-tubes with conduction of via moving band contact Fig.

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