Double Row Cylindrical Roller Bearings
The double row cylindrical roller bearing is designed as separable type bearing, which makes it easy to be mounted and dismounted.It is produced in two structures with cylindrical bore and tapered bore (suffix K), two designs NNU and NN. The NN design is consist of one inner ring with two ribs and one outer ring without ribs. The NNU design is consist of one inner ring without ribs and one outer ring with two ribs. When the bearing is installed, the radial clearance of tapered bore structure is allowed to adjust. The double row cylindrical roller can be used as a non-locating bearing since a certain axial displacement between the shaft and bearing housing is allowed. We provide the double row cylindrical roller bearing that has high precision and great stiffness, which is usually used as main shaft bearing for precision machine tools.BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax200280602.1420815NN .6280802.1484960NN 4940K/W204182940Y.1280802.15701220NN .3280802.15701220NNU .3310822.16551170NN .7310822.16551170NNU .73101092.18901730NN .4220300602.1440895NN .4300802.16001330NN .6300802.16001330NNU .NN .529.NNU .NN .539.NN .NNU .3BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax240300601.14051030NN .77300601.1358930NNU.9320602.1460975NN .2320802.16251450NN .9320802.16251450NNU NN .532.NNU .532.NN .539.NNU .542.NN .NNU .16701380NN .43601002.17111540NN 4952K.23601002.19352100NN .33601002.19352100NNU .1BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramaxNN 3052K.NN .NN .NNU NN .NNU.14451160NN .5--340-115.NNU4856K-303-287..5380752.16951460NN .73801002.19602230NN .93801002.19602230NNU NN 3056K.NN .NNU.NN .7BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax300380802.16901760NNU .NN .551.NNU .551.NN .NN 3060K.NN.NN NNU .17001840NNU .NN .550.NN 4964K.NNU .554.NN .NNU .NNU BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramaxNNU NN .542.NN 4968K.553.NN .552.NNU .557.NN 3068KNN NNUNNU NN .544.NNU .560.NN NN 3072KNNU NN BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramaxNN NNU NN NNU NNU .19502790NNU .NN NNU NN NNU.NN .NNU NN 3092KNN NN BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramaxNN NNU.540508100NN NNU 49/50044829/NN 30/50032821/NNU 30/50034821/NN 39/53032829/NNU 49/53044829/NN 30/53032821/NN 39/56032829/NNU 49/56044829/NN 6/5602872/NN 30/560K31821/NN 40/56042821/NNU 40/56044821/BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax5609202807.5685013700NNU 31/56034827/NNU 49/60044829/NN 49/600K41829/NN 30/60032821/NNU 40/60044821/.5891018990NNU 41/60044827/NNU 48/63044828/NN 49/63042829/NNU 49/63044829/.538608820NN 30/63032821/.5688515750NNU 40/63044821/.5990021600NNU 41/63044827/NN 49/67042829/NNU 49/67044829/.5462010260NN 30/670K31821/BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax6709803087.5757817640NNU 40/67044821/.NNU 41/67044827/NNU 48/71044828/NNU49/71044829/.5514811880NN 30/71032821/.5841519440NNU 40/71044821/.NNU 41/71044827/NN 48/75042828/NNU 49/75044829/.5633614400NN 30/75032821/.5918021600NNU 40/75044821/.NNU 41/75044827/NNU 49/80044829/.5702916200NN 30/80032821/.5972023400NNU 40/80044821/BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax.NNU 41/80044827/NNU48/85044828/NNU 49/85044829/.5712816740NN 30/85032821/.NNU 40/85044821/NNU 41/85044827/NNU 49/90044829/.5742518000NN 30/90032821/.NNU 40/90044821/NNU 41/90044827/.5663320160NNU 49/95044829/.5821720160NN 30/95032821/.NNU 40/95044821/NNU 41/95044827/.5772223400NNU 49/100044829/BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax.5858025200NN49/100042829/.5909022050NN 30/100032821/.NNU 40/100044821/NNU 41/100044827/.5945027450NNU 49/106044829/.5990024750NN 30/106032821/.NNU 41/106044827/.5945028350NNU 49/112044829/.NNU 41/112044827/.NNU 49/118044829/.NNU 41/118044827/.NNU 41/125044827/.NNU 49/132044829/.NN49/132042829/.NNU 41/132044827/BoundaryBasic load ratingsDesignationsStructure sizeInstallation dimersionMassmmkNmmmmkgdDBrminCrCorCurrentOriginalFwEwdamindamaxDaminDamaxdbminramax.NNU 41/140044827/.NNU 41/150044827/
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