зубчастий вінець коліщати
base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction
life ring (ring buoy)
drive sprocket
idler sprocket
water pump drive sprocket
jump the sprocket wheel
fuel driving sprocket
sprocket wheel
base ring
breech ring (of firearm)
D-ring
gun ring
jet ring
retaining ring
ring
safety-pin ring
stator ring
stiffener ring
X ring
defense ring
power-slip ring
slinger ring
slip ring
slip-ring box
slip-ring terminal
fire extinguishing ring
tie-down ring
trunnion ring
adjustable ring
adjusting nut ring
adjusting ring
barrel-magazine joint ring