A bearing block assembly includes a liner having a two piece ring of low friction material extending around the rockshaft and held in place by a bearing block. The rockshaft includes a radially projecting member interacting with the bearing block assembly to maintain the axial position of the rockshaft. The bearing liner includes a flange extending beyond the bearing block to contact the projecting member. The flange is seated in a groove at the side of the bearing block and lowers the coefficient of friction at the rockshaft/thrust surface interface.

 
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< Spindle motor having variably grooved radial and thrust bearing with reduced groove angle near bearing entry

> Sealing apparatus

~ 00485