Barden Super Precision Ball Bearings Speciality Products Table of Contents
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Barden Super Precision Ball Bearings Speciality Products Table of Contents Capabilities Special Applications Bearing Application Committed to Excellence .................................. 4 Introduction & Capabilities ............................ 43 Solid Lubrication ........................................... 72 Mounting and Fitting ................................... 120 Global Reach ................................................... 4 Vacuum Pumps .............................................. 44 Bearing Cages ....................................... 73 – 77 Shaft & Housing Fits .................................... 121 Barden’s Products ........................................... 5 Emergency Touchdown/Auxiliary Bearings ..... 45 Bearing Closures ................................... 78 – 79 Fitting Practice ............................................. 121 Medical and Dental - High Speed ........... 46 – 47 Precision Standards ......................................... 5 Attainable Speeds & Limiting Speed Factors .. 80 Fitting Notes ......................................122 – 123 Dental Handpiece Bearings Internal Design Parameters ............................ 81 Shaft & Housing Size Determination ..123 – 124 Beyond ABEC ................................................... 6 Medical and Dental - X-Ray .................... 48 – 49 Ball Complement ........................................... 81 Maximum Fillet Radii ................................... 124 Sizes and Configurations ................................. 6 Aviation and Defense – Auxiliary ........... 50 – 51 Equipment Applications .................................................... 7 Raceway Curvature ........................................ 81 Shaft & Housing Shoulder Diameters ........... 125 Aviation and Defense – ......................... 52 – 53 Radial Internal Clearance ....................... 81 – 83 Abutment Tables ................................126 – 134 Quality Management ....................................... 8 Instrumentation and Sensing Contact Angle ........................................ 84 – 85 Random and Selective Fitting....................... 135 Product Engineering ........................................ 9 Aviation and Defense – Actuation .......... 54 – 55 Systems Axial Play ............................................... 86 – 87 Calibration .........................................135 – 136 Canning Industry ........................................... 56 Bearing Types Ball Complement (Tables) ...................... 88 – 90 Maintaining Bearing Cleanliness ........137 – 138 Nuclear Power ............................................... 57 Deep Groove Bearings ................................... 10 Preloading ............................................. 91 – 95 Handling Guidelines .................................... 139 Emerging Automotive Technologies ....... 58 – 59 Angular Contact Bearings .............................. 11 Lubrication .......................................... 96 – 103 Index ........................................................... 140 Thrust Washers .............................................. 60 Tolerances and Geometric Accuracy ...104 – 105 Nomenclature ............................. 12 – 13 Engineering Tolerance Tables ................................106 – 109 Bearing Selection Product Tables Bearing Performance Selecting the Right Bearing ........................... 64 Deep Groove Instrument (Inch) .............. 14 – 17 Bearing Life ................................................. 110 Operating Conditions ..................................... 64 Service Life .................................................. 110 Deep Groove Instrument (Metric) ........... 18 – 19 Bearing Types ................................................ 65 Bearing Capacity................................110 – 111 Deep Groove Flanged (Inch) ................... 20 – 21 Diameter Series ............................................. 66 Fatigue Life ........................................112 – 115 Deep Groove Thin Section (Inch) ............ 22 – 25 Sizes and Materials ....................................... 66 Grease Life .................................................. 116 Thin Section (Inch) ................................. 26 – 27 Ball & Ring Materials ............................. 66 – 67 Ceramic Hybrid Bearings ....................... 68 – 70 Vibration ..................................................... 117 Deep Groove Spindle and Turbine ......... 28 – 33 (Metric) X-life Ultra Bearings ....................................... 70 Yield Stiffness .............................................. 118 Angular Contact (Inch) ........................... 34 – 35 Surface Engineering Technology ............ 71 – 72 Torque ......................................................... 118 Angular Contact (Metric) ........................ 36 – 41 Measurement and Testing ..................118 – 119 2 3 Capabilities Precision with Vision Committed to Excellence Global Reach Barden’s Products Precision Standards The Barden Corporation is recognized as a world Originally founded in 1942 by Theodore Barth The Barden product line is comprised largely of Precision ball bearings are manufactured to leader in the design and manufacture of super and Carl Norden in the United States, The radial, single and double row, angular contact tolerance standards defined by the Annular Bearing precision ball bearings. For more than six decades Barden Corporation has built an enviable (separable and non-separable) and deep groove, Engineering Committee (ABEC) of the American the Barden name has been synonymous with reputation for producing some of the world’s super precision ball bearings. All products in the Bearing Manufacturers Association (ABMA). These bearings of exceptional quality and precision and most precise bearings and is now a key strategic range can meet and will usually exceed ABEC 9 standards are accepted by the American National Standards Institute (ANSI) and can be seen as Barden bearings are renowned worldwide for their member of the multinational Schaeffler Group. (ISO P2) standards, while full traceability back to broadly equivalent standards for the International high reliability and long operating life in The Group specializes in bearing technologies raw materials can also be provided. Organization for Standardization (ISO). challenging applications. and precision products for aerospace, industrial Barden’s product offering also includes large and plant and automotive industries and has over Barden offers thousands of bearing variations small diameter thin section ball bearings. Produced ABEC ISO M&I ABEC M&I ISO 74,000 employees at more than 180 locations which are used in virtually every sector of industry in standard cross sections and configurations, Standard Standard Standard Standard worldwide. where there is the need to meet critical tolerances, these bearings can be customised to meet the 1 P0 3 P6 3P P6 high speeds and performance under demanding The Barden Corporation boasts state-of-the-art unique needs of each application. 5 P5 5P P5A operating conditions. These include key facilities at its manufacturing plants in Danbury, 7 P4 7P P4A components for the aerospace and defense USA and Plymouth, UK, both of which have 9 P2 9P P2 sectors, vacuum pumps, food processing, some of the world’s most sophisticated machine robotics and medical equipment, including tools, production equipment and inspection ABEC standards define tolerances for several major x-ray and CAT scanners and high speed dental systems installed. As a supplier to some of the bearing dimensions and characteristics, which are handpiece turbines. most prolific blue chip companies across the divided into envelope dimensions (bore, OD and globe, quality is of the utmost importance width) and bearing geometry. Bores and OD’s may Barden’s success has been built on a solid throughout the organization. Stringent be calibrated for greater mounting flexibility. foundation of manufacturing and engineering standards are applied to every element of the Barden encompasses design expertise, a highly skilled workforce and business, from the customer interface and specialist product lines, the ability to design bespoke engineered solutions design, through to production, packaging including large and small for its customers. and delivery. diameter thin section bearings, dental bearings, spindle and turbine bearings, turbomolecular pump and machine tool bearings. While general purpose bearings for these ranges are manufactured to ABEC 1 through to ABEC 9 standards commercially, Barden super precision bearings come in inch or Barden bearings of these metric dimensions with diameters ranging from types meet or exceed ABEC 7 geometric standards. Additionally, Barden’s ‘miniature and instrument’ 4mm (5/32") OD up to 300mm (11½") OD. A variety product range is produced in equivalent classes of seals, shields and metallic/non-metallic cage with added refinements designated by suffixes, designs are available to meet most requirements. and are comparable to ABEC 7 or above. Many Barden bearings operate comfortably at speeds reaching 2 million dN (bore in mm x RPM), or above. 4 5 Capabilities Precision with Vision Beyond ABEC Sizes Applications Vacuum pumps place severe demands on precision ABEC classes are primarily concerned with bearing Barden’s super precision bearings are available Complementing Barden’s range of standard bearings, which must operate reliably under extreme conditions and meet long life