Aerospace Design Guide 2015 by Timken

More catalogs by Timken | Aerospace Design Guide 2015 | 60 pages | 2015-10-07

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Catalog Aerospace Design Guide 2015

for Precision Metric Ball and Cylindrical Roller Bearings

advantage of back to back bearing ball and roller bearing design design calculation of ball and roller bearings design of ball and roller bearing high speed grinding radial and axial loads ball bearing angular contact ball and roller bearings ball and roller bearing ball and roller bearings tolerance single row ball bearing single row ball bearings locating ring in ball bearing thin section ball bearings ball and roller bearings sizes difference between ball and roller bearing effect low speed on ball bearing 20 x 10 x 10 ball bearing 1 18 x 250 x 250 30 mm bearing inner diameter width 16 mm high load bearing and high speed fitting the bearing on the shaft use of ball and roller bearing speed limiter the rpm limit of the engine greater than and less than ball bearing cage design design taper roller bearing design of taper roller bearing design and selection for bearing applications cylindrical roller bearings timken spherical roller bearing timken cylindrical roller bearings timken rib timken ball bearings timken ball bearing timken taper roller bearing timken taper roller bearings timken taper roller bearing shaft timken tapered roller bearing housed units vim var 52100 steel material static axial load ball bearing cage 440c stainless steel cylindrical roller bearing cylindrical roller bearings cylindrical roller bearring deep groove bearing ball bearing l10 life bearing radial axial load calculation ball bearing radial load calculation angular contact bearing angular contact bearings non destructive testing spherical roller bearings spherical roller bearing deep groove bearing machined cage thrust cylindrical roller bearing

Aerospace Design Guide 2015 is listed under these categories

Industrial Supply > Manufacturing & Metalworking > Bearings

Featured catalog pages of Aerospace Design Guide 2015

aerospace design guide the world turns to timken for innovation to move ahead of the competition our contributions to advancing work and living standards – through innovations surrounding friction management and power transmission – are invaluable we have played a role in virtually all major technologies that have shaped our age from automobile travel to artificial hearts you’ll find our products wherever you turn – on land on sea and in space when customers turn to us they are turning to a worldwide team because of our ability to help their products perform better customers honor us with numerous awards each year whether it is a wheel assembly for a family vehicle bearings for a roller coaster or repair services for rail bearings we supply the products and services that help keep the world turning friction management solutions – a total systems approach as needs change and advanced motion control systems evolve timken leverages its knowledge of

aerospace design guide 8 aerospace design

aerospace design guide cylindrical roller bearings basic construction types aerospace roller bearings are designed to meet the needs of high-speed operations careful attention to roller configuration cage design guide flange finish and contour and material stability can help you achieve roller end wear and improve life at high speeds conventionally designed roller bearings in standard 52100 or vim-var m-50 steel are normally manufactured to class 5 tolerances with high-strength machined cages any of at least seven ring configurations may be selected depending on the application all types except raa provide precision control of the roller for operation over a wide speed range with precisionground double-ribbed guide flanges on one ring generally the guide flange diameters are ground to close tolerances to offer a riding surface for cage-to-land clearance control rf rj rt for applications requiring axial position control or limited axial capabilities in one direction type rf is most

cylindrical roller bearings boundary dimensions d timken size code 012 112 212 312 412 013 113 213 313 413 014 114 214 314 414 015 115 215 315 415 016 116 216 316 416 017 117 217 317 417 d w bore outside diameter width mm in 60 2.3622 60 2.3622 60 2.3622 60 2.3622 60 2.3622 65 2.5591 65 2.5591 65 2.5591 65 2.5591 65 2.5591 70 2.7559 70 2.7559 70 2.7559 70 2.7559 70 2.7559 75 2.9528 75 2.9528 75 2.9528 75 2.9528 75 2.9528 80 3.1496 80 3.1496 80 3.1496 80 3.1496 80 3.1496 85 3.3465 85 3.3465 85 3.3465 85 3.3465 85 3.3465 mm in 85 3.3465 95 3.7402 110 4.3307 130 5.1181 150 5.9055 90 3.5433 100 3.9370 120 4.7244 140 5.5118 160 6.2992 100 3.9370 110 4.3307 125 4.9213 150 5.9055 180 7.0866 105 4.1339 115 4.5276 130 5.1181 160 6.2992 190 7.4803 110 4.3307 125 4.9213 140 5.5118 170 6.6929 200 7.8740 120 4.7244 130 5.1181 150 5.9055 180 7.0866 210 8.2677 mm in 13 0.5118 18 0.7087 22 0.8661 31 1.2205 35 1.3780 13 0.5118 18 0.7087 23 0.9055 33 1.2992 37 1.4587 16 0.6299 20 0.7874 24 0.9449 35

ball bearings part numbers dimensions and load ratings table ball bearing specifications to develop a complete bearing part number 1 select materials and operating temperatures prefix see page 40 2 select construction type plus cage plus seal prefixes cages hk ha/hj hd ht deep groove angular contact fractured ring two-piece inner ring r construction types full ball complement f machined phenolic r hkr haf hjf hdf htf har hjr hdr htr stamped steel t hkt stamped brass u hku machined brass b hkb hab hjb hdb htb si-fe bronze z hkz haz hjz hdz htz silver-plated steel h hkh hah hjh hdh hth shields and seals r hk hk one side two sides ddas construction types shield stamped steel s hk s hk ss shield molded rubber d hk d hk dd seal stamped washer l hk l hk ll seal molded rubber z hk z hk zz w fig 11 ball bearing dimensional features cage selection from above table 7 ball bearing specifications 3 select basic bearing timken size code see tables on pages 26-30 4 add suffixes for

aerospace design guide part numbers dimensions and load ratings table continued d timken size code 026 126 226 326 426 028 128 228 328 428 030 130 230 032 132 232 034 134 036 136 038 138 040 044 1 2 3 30 d w boundary dimensions mounting shoulder diameter a bore outside diameter width mm in mm in 130 5.1181 130 5.1181 130 5.1181 130 5.1181 130 5.1181 140 5.5118 140 5.5118 140 5.5118 140 5.5118 140 5.5118 150 5.9055 150 5.9055 150 5.9055 160 6.2992 160 6.2992 160 6.2992 170 6.6929 170 6.6929 180 7.0866 180 7.0866 190 7.4803 190 7.4803 200 7.8740 220 8.6614 180 7.0866 200 7.8740 230 9.0551 280 11.0236 340 13.3858 190 7.4803 210 8.2677 250 9.8425 300 11.8110 360 14.1732 210 8.2677 225 8.8583 270 10.6299 220 8.6614 240 9.4488 290 11.4173 230 9.0551 260 10.2362 250 9.8425 280 11.0236 260 10.2362 290 11.4173 280 11.0236 300 11.8110 s radius ball diameter min shaft max housing mm in mm in mm in mm in mm in 24 0.9449 33 1.2992 40 1.5748 58 2.2835 78 3.0709 24 0.9449 33 1.2992 42 1.6535 62

aerospace design guide outer ring tolerances mean o.d diameter 0.0000 to minus value below outside diameter o.d iso and ansi/abma classes ring width 0.0000 to minus value below single bearing preloaded single bearing iso and ansi/abma classes iso and ansi/abma classes iso and ansi/abma classes normal 6 5 4 2 normal 6 5 4 2 normal 6 5 4 2 normal 6 5 4 2 1 3 5 7 9 1 3 5 7 9 1 3 5 7 9 1 3 5 7 9 mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in 0.006 0.003 0.0025 0.002 0.00025 0.0001 0.0001 0.0001 0.007 0.004 0.003 0.002 0.0003 0.00015 0.0001 0.0001 over included mm in mm in 18 30 0.009 0.008 0.006 0.005 0.004 0.007 0.7087 1.1811 0.00035 0.0003 0.00025 0.0002 0.00015 0.0003 30 50 0.011 0.009 0.007 0.006 0.004 0.008 1.1811 1.9685 0.00045 0.00035 0.0003 0.00025 0.00015 0.0003 50 80 0.013 0.011 0.009 0.007 0.004 0.010 0.008 0.005 0.0035 0.002 1.9685 3.1496 0.0005 0.00045 0.00035 0.0003 0.00015 0.0004 0.0003 0.0002 0.00015 0.0001 80 120 0.015 0.013 0.010

aerospace design guide radial play and contact angle continued 60˚ deep-groove hk series and fractured outer hd series ball bearings 50˚ the graph also may be used to determine the required internal clearance range from predetermined axial play or contact angle values 0.06 0.05 40˚ 0.04 average contact angle 30˚ 0.03 b 20˚ 0.02 fe end play ÷ ball diameter average contact angle fe end play ÷ ball diameter a 10˚ 0˚ 0.000 0.01 0.002 0.004 0.006 0.008 0.010 0.012 0.00 0.014 fr radial play ÷ ball diameter fig 12 relationship between radial play endplay and contact angle for any ball size radial play selection – ha/hj and ht types angular contact ha/hj ball bearings are normally manufactured to a contact angle tolerance rather than a specified radial play the two standard contact angles are 15 degrees and 25 degrees 15 degrees should be used for applications which while predominantly axially loaded have a significant radial load component and 25

engineering data to select a bearing size knowing the required l10 life rpm and load the nomograms can be solved for cr–p enter the nomogram at n rpm and draw a straight line to the l10 value the intersection with the center line is the cr–p ratio multiply cr–p by p equivalent load and obtain cr using this value enter the cr column in the bearing dimension and capacity tables and select a bearing with the proper capacity to suit the shaft and housing requirements alternate direct calculation method roller bearings ball bearings cylindrical bearing l10 life radial and angular contact bearing l10 life cr/p x 10 l10 ——————– n x 60 cr /p3 x 106 l10 —————– n x 60 10/3 6 where 1 l10 rating life in hours 2 n bearing speed in rpm 3 cr dynamic load rating see column cr bearing specification table pages 17-21 and 26-30 4 p equivalent radial load see next page variable load

engineering data a light oil preservative per mil-prf-6085 these are nonoperating coatings rather than lubricants they are however compatible with most lubricants and generally do not need to be removed prior to mounting sealed bearings are normally lubricated with a controlled quantity of sodium soap grease this provides excellent channeling characteristics resulting in minimum torque and heat generation special lubricants timken maintains an inventory of oils and greases for use in special applications exposed to extreme conditions of temperature vacuum moisture or radiation where initial lubrication must last the life of the bearing grease is preferable to oil except for instrument-type applications having sensitive torque requirements the choice of grease is a function of oil and thickener type as well as the additive package to meet many special requirements how to specify the greases listed with the timken lubricant code are typical of those frequently specified the lubricant