with appropriate resilient cam surfaces accomplishing the sealing action and the end cap 28 engaging with outer seal assembly 64 to hold the seal in position with the assistance of set screw 32 a vertically positioned set screw 66 is also located at each end to mount the outer seal to shaft 22 and the outer seal in turn holds the inner seal assembly 62 in position a combined outlet and inlet passageway 68 is provided between seals 1 and 2 for passage of water to act as a coolant pumped between the two seal faces to prevent over heating as the bowed roll operates passageway 68 communicates with an inlet tube 70 and an outlet tube 72 at each end of roll 20 the inlet tube 70 and the outlet tube 72 are 180 u00b0 apart the lines 70 and 72 pass through the hollow interior of hollow shaft 20 as depicted in fig1 the remainder of the lubrication system as depicted in schematic form in fig1 includes a reservoir 74 containing a supply of lubricant 76 for example oil the reservoir 74 is of a conventional type with an instrument air purge inlet 78 provided as a control along with a low level alarm switch 80 connected between the reservoir and an indicator panel a thermocouple 82 is mounted in the base of the reservoir and connected at the other end to a feed in water line 84 through an appropriate valve assembly 86 the feed in water line used as a coolant passes through a conventional water or air cooled heat exchanger 88.