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Nomenclature Chart Ballscrew Support Bearings BSBU D

86 88-91

Standard and Heavy Duty Bearings BSBU Q

92,93

Standard and Heavy Duty Bearings BSPB D

94,95

Standard and Heavy Duty Bearings BSPB Q

96,97

The Torrington Company

1

The Torrington Commitment

1

Fafnir Superprecision Bearings

4

Using This Catalog

4

Hybrid Ceramic Bearings

5

Conditions of Sale

5

Warranty

5

Liability

5

Restricted Applications

5

Safety Recommendations

5

Forward Tolerances

E2 E3

Standard Tolerances, Inner Ring, ABEC-7,-9 Width Tolerances Standard Tolerances, Outer Ring, ABEC-7,-9 Shaft and Housing Geometry

E4 E4 E5 E6

Recommended Spindle Shaft Tolerances

E8,E9

Recommended Spindle Housing Tolerances E10-E15

Ball Screw Shaft and Housing

Shoulder Diameters Spindle Shaft and Housing

E16

Standard and Heavy Duty Bearings

98,99

Nomenclature Chart Superprecision Bearing Introduction Machine Tool Offering Chart Bearing Types

8 10 11

Angular Contact Ballscrew Support Bearings Ultra-Light 2MM9300WI, 3MM9300WI Series Extra-Light 2MMV99100WN,

12 13 14-23

Forward Procedure

E52 E52

Enclosed Dust-Free Working Area Inspection of Parts Before Assembly Bearing Packing Bearings Assembled in Spindle Mounting Bearings and Shaft Assembled with

E52 E52 E53 E53

Eccentricities Opposed Scraping Locknut to Eliminate Runout

E54 E55

3MM99100WN Series

24-33

Shoulder Diameters

E17-E19

102800

Shelf Life and Storage Policy

6

Extra-Light 2MMV9100HX Series

34-41

Extra-Light 2MM9100WI, 3MM9100WI Series 42-51

Extra-Light MM9100K Series

52-54

Light 2MM200WI, 3MM200WI Series

56-65

Light MM200K Series

66-68

Medium 2MM300WI, 3MM300WI Series

69-77

Medium MM300K Series

78-80

Ex-Cell-O Spindle Bearings

81-83

Hybrid Ceramic Bearings

84,85

Locknut Torque Micron Bore and O.D. Coding Lube Inlet Diameters Recommended Ball Screw Shaft

E22 E23 E27

and Housing Tolerances Typical Mountings of Duplex Bearings Back-to-Back vs Face-to-Face Mounting Spring-Loaded Mountings Preloading Bearing Selection Bearing Spacers

E24,E25 E29 E30 E31 E31 E32 E34

Checking Temperature, Vibration

and Roughness Cleanliness Typical Applications of Ball Bearings

E56 E56-E58

to Machine Tool Spindles Quick Reference Data Sheets Bearing Analysis sheet

E58 E60-E62 E63

CONTENTS

Housing Design

E34

Housing Seals

E35

Bearing Locknuts

E35

Heat Generation

E35,E36

Permissible Operating Speed

E36

Lubrication Types

E37,E38

Engineering Notations

E41

Life Calculators

E41-E43

Life Adjustment Factors

E43

Applications

E45-E48

Radial Internal Clearance

E49

See last page of catalog for Engineering Sales Offices

3

INTRODUCTION

SUPERPRECISION BEARINGS

BALLSCREW SUPPORT BEARINGS

ENGINEERING

MAINTENANCE MACHINE TOOL SPINDLES

INDEX

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