Idler arm bearing

Claim 1

BEARING MEANS FOR INTERCONNECTING AN IDLER ARM AND IDLER ARM BRACKET FOR PIVOTING MOVEMENT OF THE IDLER ARM RELATIVE TO THE IDLER ARM BRACKET, SAID IDLER ARM BRACKET HAVING PARALLEL SPACED-APART ALIGNEDLY APERTURED MEMBERS, A BOLT EXTENDING THROUGH THE APERTURES IN SAID MEMBERS, SAID IDLER ARM HAVING OPPOSINGLY ALIGNED COUNTERBORES LOOSELY SURROUNDING THE RESPECTIVE END PORTIONS OF SAID BOLT AND DEFINING A CENTRALLY BORED WEB THEREBETWEEN, SAID WEB CLOSELY SURROUNDING SAID BOLT INTERMEDIATE THE ENDS OF THE LATTER, SAID BEARING MEANS COMPRISING: A CYLINDRICAL HOUSING HAVING AN OUTER WALL DIAMETRICALLY REDUCED AT ONE END PORTION AND CLOSELY RECEIVED BY THE COUNTERBORE IN SAID IDLER ARM; A FIRST CENTRALLY BORED ANTIFRICTION MEMBER LOOSELY SURROUNDING SAID BOLT AND CLOSELY RECEIVED BY SAID HOUSING; A SECOND CENTRALLY BORED ANTIFRICTION MEMBER WITHIN SAID HOUSING LOOSELY SURROUNDING SAID BOLT AND CONTIGUOUSLY CONTACTING THE ADJACENT SURFACE OF SAID FIRST ANTIFRICTION MEMBER; A TUBULAR GUIDE SURROUNDING SAID BOLT ON OPPOSITE SIDES OF SAID WEB AND SNUGLY RECEIVED BY THE BORES IN SAID FIRST AND SECOND MEMBERS; AND A SPRING SURROUNDING EACH SAID GUIDE AND EXTENDING AT ONE END PORTION THROUGH THE REDUCED END PORTION OF SAID HOUSING AND RESILIENTLY CONTACTING THE ADJACENT SURFACE OF SAID SECOND ANTIFRICTION MEMBER.