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TIMKEN
FAFNIR SUPER PRECISION BEARINGS FOR MACHINE TOOL APPLICATIONS CATALOG
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TIMKEN FAFNIR SUPER PRECISION BEARINGS FOR MACHINE TOOL APPLICATIONS CATALOG INDEX
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 SHELF LIFE AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 WARNINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ENGINEERING
Bearing Selection Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Applied Loads and Bearing Analysis . . . . . . . . . . . . . . . . . . . . . . . . . .25 Bearing Life and System Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Permissible Operating Speed and Lubrication . . . . . . . . . . . . . . . . . .42 Run-In Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 Heat Generation and Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Fitting Practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 Shaft And Housing Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 Mounting Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 Setting And Preloading Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
PRECISION TAPERED ROLLER BEARINGS
Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 Bearing Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 TS Style - Metric, Inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 TSF Style - Metric, Inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 TXR Style - Metric, Inch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 TSHR Style - Metric, Inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Tapered Roller Bearing Bore Diameters Found In This Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
SUPER PRECISION BALL BEARINGS
Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 Bearing Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128 Spindle Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132 Ball Screw Support Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .194 Ex-Cell-O Spindle Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212 Ball Bearing Bore Diameters Found In This Catalog. . . . . . . . . . . . .214
APPENDIX
Frequency Coefficients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216 Precision Tag Deviation and Runout Charts . . . . . . . . . . . . . . . . . . . 233 Geometry Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 Radial Internal Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Bearing Locknuts and Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Lubrication Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 Operating Temperatures for Bearing Component Materials . . . . . . 242 Conversion Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244
INDEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
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