supply of pot / ptfe bearing at krb ( aquaduct ) , kasganj pot / ptfe bearing , drawing / design manufacturing & supply of pot & ptfe bearings. , type i : pot cum ptfe guided bearing guided in transverse ( t-t axis ) ( arrow indicate allowable direction of movement ) ( gbi ) , type ii : fixed type pot bearing ( fixed bearing no movement allowed ) ( fx ) , type iii : free slide type pot cum ptfe bearing ( allowing movement in both direction ) ( fr ) , type iv : metallic guided bearing ( pot cum ptfe bearing ) guided in longitudinal ( l-l axis ) ( arrow indicate allowable direction of movement ) ( gb )