This Cobra had a footboard surface that was smoother, the bearing housing was redesigned, the cam shapes were altered slightly, and the baseplate came with a feature called the Cobra Coil.
12.
For this experiment we can use three different stiffness couplings, four levels of offset should be used on the left bearing housing to simulate a combination of angular and parallel misalignment.
13.
At standstill, or while on standby, pump and driver bearings are preserved by the surrounding oil mist, which exists in the bearing housing space at a pressure just barely higher than ambient.
14.
Consisting of a stationary linear base and a moving carriage, roller slides work similarly to ball bearing slides, except that the bearings housed within the carriage are cylinder-shaped instead of ball shaped.
15.
The bearing housing height has been increased to improve lubrication; its mounting flange thickness has been substantially increased; the geometry of the top and bottom liners in the bearing housing has been altered to further reduce incidence of rocking.
16.
The bearing housing height has been increased to improve lubrication; its mounting flange thickness has been substantially increased; the geometry of the top and bottom liners in the bearing housing has been altered to further reduce incidence of rocking.
17.
The resulting imbalance caused reverse bending loads on the bolt heads of the bearing assembly resulting in the failure of one bolt head, which created even more stresses and caused the bearing housing to open after the next 5 bolts had failed.
18.
The old RB303 tonearm has been replaced by a new RB330 version of the classic, with patent pending " zero-tolerance " bearings, stiffer vertical bearing housing, redesigned bias ( anti-skate ) housing, improved three-point plinth mounting, a new arm tube coating, and new arm wiring.
