At low sliding speeds a bearing performs satisfactorily when immersed in an unpressurized oil bath, but at higher speeds the centrifugal effects of the collar on the surrounding oil become substantial. Recirculation slots are provided at the back of the carrier ring to equalize the pressure gradients created by the collar, but their success is only partial.

Tests were carried out at constant speeds to measure the static pressures at the outer and inner peripheries of the pads for given oil supply pressures. Fig. 13.7 shows the results for 9000 rev/min, which was the maximum possible test rig speed when the tests were performed. It will be seen that pressures at the outer periphery of the pads were substantially less than the supply pressure, and pressures below atmospheric were measured at the inner periphery of the pads with low oil supply pressures. This was particularly noticeable at high speeds where higher temperature readings indicated oil starvation at the pad inlet. These sub-atmospheric pressures can be avoided by increasing the supply pressure. Other workers (4) have shown that the safety factor of a tilting pad thrust bearing

set of 16 Deep Groove Radial Ball Bearings and it is quality inline skate, bearings are blacked and bearings have nylon cage that would make them faster. Bearings have 2 Removable yellow Seals, Bearings are made of Chrome Steel, each bearing has 2 Removable yellow Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with oil.

•Item: 608-2RS
•Type: Deep groove ball bearings 8x22x7
•Color: Black
•Closures: 2 Removable yellow Seals
•Quantity: 16 Bearings
•Size: 8mm x 22mm x 7mm