>> P.237
E1N=0.102kgf=0.2248lbs.1mm=0.03937inch■Accuracy■LubricationRoller Bearings are manufactured in accordance with Bearings with prepacked grease are shown in Table JIS (See page A31.). A side plate for inner ring is 3. For Caged Roller Bearings and Full Complement assembled on one side of caged or full complement Roller Bearings, lubrication grease (Shell Lubricants roller bearings. The tolerance of bore diameter of the Japan K.K. Shell Gadus S2V125J 2 (S)) is prepacked.side plate is shown below. Tolerances of Roller For Roller Bearings for Sheaves, Shell Lubricants Bearings for Sheaves represent the values before Japan K.K. Shell Gadus S2 V220J 2 (EP) is pre-surface treatment. The tolerance of internal distance packed.between cir-clips is shown below.Tolerance of bore diameter of the side plate d: E7Tolerance of internal distance between cir-clips C1: 0〜+0.4mmIn the case of bearings without prepacked grease, perform proper lubrication for use. Operating without lubrication will increase the wear of the rolling contact surfaces and shorten their lirees.■Oil HoleThe number of oil holes of the inner and outer rings is shown in Table 4.■Operating Temperature RangeThe operating temperature range for Roller Bearings is -20℃〜+120℃. However, the maximum allow-able temperature for Roller Bearings for Sheaves is +110℃.■ClearanceRoller Bearings are manufactured to the CN clear-ance shown in Table 18 on page A37. However, Roller Bearings for Sheaves are manufactured so that proper operating clearances are obtained after being mounted with a specied t.■FitThe recommended ts for Roller Bearings are shown in Tables 21 to 22 on pages A41 and A42. The rec-ommended fits for Roller Bearings for Sheaves are shown in Table 2.Table 2 Recommended fits for Roller Bearings for SheavesTolerance class of shaftTolerance class of housing boreg6N7Table 3 Bearings with prepacked grease〇:With prepacked grease×:Without prepacked greaseTypeStandardWith sealsWith shieldsCaged typeNAU ,TRU Full complement typeFor sheavesNAGNAS ××-〇〇〇--〇Table 4 Number of oil holes of the inner ring and outer ringTypeNumber of oil holes of the outer ringNominal bore diameter d mmStandardWith sealsWith shieldsNumber of oil holes of the inner ringCaged typeNAUTRUFull complement typeNAGFor sheavesNASd≦17 17<dd≦17 17<d02202─RemarkThe bearings with oil holes are also provided with an oil groove.022020───00002E4
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