>> P.106
Mass (Ref. )g──────────YB 188YB 1812YB 181625.538.551.5────────────YB 191042.5Identification numberStandardMass (Ref. )gClosed endMass (Ref. )gGrease retained────────────────────────────────BHA 1812 ZBHA 1816 ZBHA 1818 ZBHA 1820 Z456067.573.5BHAM 1812BHAM 1816BHAM 1818BHAM 1820496471.578Mass (Ref. )g18.1233342.552───────Closed endBAM 186BAM 188BAM 1812BAM 1816BAM 1820───────Mass (Ref. )g14.519.529.53948.5───────StandardBA 186 ZBA 188 ZBA 1812 ZBA 1816 ZBA 1820 Z───────Shaft dia.mm(inch)28.575(1 1╱8)Shaft dia. 28.575-30.162mm────────────30.162(13╱16)BA 1910 ZBA 1916 Z─32.552BAM 1910BAM 1916─37.557─SHELL TYPE NEEDLE ROLLER BEARINGSInch SeriesNote(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark hell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.B39
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