Brake camshaft mounting

Claim 1

MEANS FOR ROCKABLY MOUNTING A BRAKE CAMSHAFT COMPRISING A RELATIVELY STATIONARY TUBULAR SUPPORT HAVING A THROUGH BORE, A CAMSHAFT OF SMALLER DIAMETER THAN SAID BORE EXTENDING THROUGH SAID BORE TO PROJECT THEREFROM AT OPPOSITE ENDS, ENLARGED COUNTERBORES IN SAID SUPPORT AT OPPOSITE ENDS OF SAID BORE, A PAIR OF SIMILAR AXIALLY FIXED BUSHINGS OF TOUGH MACHINABLE PLASTIC INSERTED ENDWISE WITHIN SAID BORE AT OPPOSITE ENDS AND TERMINATING SHORT OF EACH OTHER WITHIN SAID BORE TO PROVIDE A LUBRICANT CONTAINING SPACE THEREBETWEEN SURROUNDING THE SHAFT, SAID BUSHINGS HAVING CYLINDRICAL SMOOTH INTERNAL SURFACES CLOSELY SURROUNDING CORRESPONDING CYLINDRICAL SHAFT SURFACES AND HAVING AT THEIR OUTER ENDS RADIALLY OUTWARDLY EXTENDING FLANGES DISPOSED IN SAID COUNTERBORES, AND INNER AND OUTER FLEXIBLE LUBRICANT RETAINING SEALING MEANS DISPOSED RESPECTIVELY BETWEEN THE SHAFT AND SAID FLANGED END OF EACH BUSHING AND BETWEEN SAID BUSHING END FLANGES AND SAID COUNTERBORES, SAID SEALING MEANS BEING COMPRESSED TO OPERATIVE CONDITION WHEN SAID BUSHINGS ARE INSERTED ENDWISE INTO SAID BORE SUFFICIENTLY TO DISPOSE THEIR FLANGED ENDS WITHIN SAID COUNTERBORES.