>> P.401
I■Allowable Rotational Speed3When mounting Sealed Type Separable Roller Followers, do not cause the side plates to come off. The allowable rotational speed of Roller Followers is If they come off, set them again in place taking care affected by mounting and operating conditions. For dn load applied, use the values with only pure radial to avoid damaging the seal lips.4In case of Roller Followers without an inner ring, maximum values in Table 10 or less as a guideline. the shaft requires heat treatment and grinding n-Under actual operating conditions, use the recom-ish. The recommended surface hardness of the mended dn values in Table 10 as a guideline in con-sideration of the effect of axial loads. For use with oscillating rotation, use a C-Lube Roller Follower dn value of 8,000 or less as a guideline. For use with one-way or continuous rotation, please con-tact IKO.Table 10 dn values of Roller Followers 1) LubricantGreaseOilshaft is 58〜64HRC, and the recommended rough-ness of the shaft is 0.2μmRa or less.Also, the outer ring and cage are guided by side surfaces of the mounting parts. Therefore, it is rec-ommended that the side surfaces of the mounting parts be nished by grinding or at least by machin-ing.(See Fig. 3.)5In Non-separable Roller Followers, the side plates are press-fitted. Therefore, when mounting the Roller MaximumRecommendedMaximumRecommendedFollowers, do not push the side plates/outer rings.TypeCaged type84 0008 400140 00014 000Full complement type42 0004 20070 0007 000Cylindrical Roller Follower72 0007 200120 00012 000C-Lube Roller Followers8 0008 000Note(1)dn value=d×n where, d:Bore diameter of bearing mm n:Rotational speed min-1 ■LubricationFor Sealed Type Roller Followers, Cylindrical Roller Followers and Inch Series Roller Followers, lubrica-tion grease (Shell Lubricants Japan K.K. Shell Gadus S2 V125J 2 (S)) is prepacked.For Roller Followers without prepacked grease, grease or oil should be supplied through the oil hole of the inner ring for use. If they are used without lubri-cation, wear of rolling contact surfaces may take place, leading to a short bearing life.■Oil HoleOpen Type Separable Roller Followers have no oil hole. Inner rings of other types of Metric series Roller Followers have an oil hole. Inch series inner rings have an oil groove and an oil hole.■Mounting1In case of shield and sealed types, match the side surface correctly to the mating seating surface indi-cated by the dimension a shown in the dimension table, and x them. (See Fig. 1.)In addition, the mounting part should make even contact with the entire side plate surface. Uneven contact may cause increased rotational torque and shorten the service life.2When mounting Roller Followers, pay special atten-tion to avoid locating the oil hole of the inner ring within the loading zone. This may lead to a short bearing life. (See Fig. 2.)Pushing on the side plates or outer rings may cause unsatisfactory product performance.Fig. 1 Mating seating dimension "a"Oil holeLoadFig. 2 Position of oil hole and load directionFig. 3 ounting example of Roller Follower without inner ringI88
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