>> P.290
Mass (Ref.)Boundary dimensions mmStandard mounting dimension mmAssembled bearingsdFB(1)rs mindaMin.Max.TA … Z(TAM)TLA … Z(TLAM)YTYTLdaFdBrINNER RINGSInner Rings for Shell Type Needle Roller BearingsCADrIRTShaft dia. 50-60mm────────────────────TLA 5520ZTLA 5525Z──────────────────Shaft dia.mm50Identification numberIRT 5020-1IRT 5025-1IRT 5030-1IRT 5040-1IRT 5045-1IRT 5050-1IRT 5025IRT 5030IRT 5040IRT 5045IRT 5050g658196.5 128 144 160 169 205 270 300 3355050505050505050505050555555555555606060606020.525.530.540.545.550.525.530.540.545.550.50.60.60.60.60.60.61.51.51.51.51.55454545454545858585858 54.5 54.5 54.5 54.5 54.5 54.5 59 59 59 59 595520ZTA 5525ZTA 5530ZTA TA 5540ZTAW 5545ZTAW 5550Z6025ZTA 6030ZTA TA 6040ZTAW 6045ZTAW 6050Z52IRT 521286526212.51.560 60.5TA 6212Z5560IRT 5525IRT 5530IRT 5545IRT 5550IRT 6025IRT 6030IRT 6040IRT 6050 185 220 330 365 200 240 320 3955555555560606060656565657070707025.530.545.550.525.530.540.550.51.51.51.51.51.51.51.51.56363636368686868 63.5 63.5 63.5 63.5 68.5 68.5 68.5 68.56525ZTA TA 6530ZTAW 6545ZTAW 6550Z7025ZTA 7030ZTA 7040ZTA TAW 7050ZNote(1) Minimum allowable value of chamfer dimension rRemarkNo oil hole is provided.H9
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