Machinery’s Handbook, 31st Edition
Index
2883
B earings
( continued )
B ase
( continued )
ball bearings
pitch 2205 spur gear, diameter 2210 tooth thickness 2205 endurance limit 2252 gear dimensions 2216 rack profiles 2355 size 640 space width 2332
life 2482
adjustment factors 2493 criterion 2482
B asic
limitations 2483 load ratings 2482 locknuts and shafts for 2474–2475 lock washers for 2473 lubrication method 2479 materials for 2452 mounting 2469 precautions 2472 types 2480 pillow block 2452 plastics 2451 quiet or vibration-free mountings 2472 radial, deep groove and angular contact 2483 radial and angular contact 2484, 2485 radial and axial clearance 2480 rating life 2484, 2491 bore limits 2464–2465 housing fits 2461–2463 tolerance, classifications, metric 2462–2463 tolerance, limits, metric 2463–2464 single-row radial, filling slot 2445 single-row radial, non-filling slot 2445 soft metal and resilient housings 2471 special or unconventional types of 2451 squareness and alignment 2470 starting torque 2478 static equivalent load 2496, 2497 reliability 2493 seating fits 2472 selection 2478 shaft
B aumé’s hydrometer conversion 378 B eams 256–267, 268–272, 2691–2697 channel 2697, 2701 curved 274–276 deflections in 256–276 designing for 273–276 fixed at both ends 264–265, 279
at one end 261–263, 268–269, 279
I-beams 2691–2696, 2701 rectangular solid 268–272 round solid 268–272 stresses in 216, 256–280 combined 219–222 fatigue 280
produced by shocks 278–279
supported
at both ends 256–260, 268–269, 270, 272, 273 at one end 262–263
B earing capacity, soil and rocks 381 B earings 2393–2443, 2444–2498 ball bearings 2444–2459, 2463, 2469
ABEC tolerances 2454–2459 alignment and squareness 2470 allowance for axial displacement in 2461 angular contact 2446 cage materials 2452 clamping and retaining methods 2472 clearances, running 2479 closures 2472, 2477 deficiencies 2482 design and installation 2461
load criterion 2483 load ratings 2494 symbols 2445, 2446
thrust 2449, 2487 thrust load 2488 tolerances 2453, 2459 types 2445, 2483 grease packing guidelines 2515
designation 2452, 2464 double row bearing 2446 equivalent thrust load 2488 failures 2482 fatigue life 2482 fits 2472, 2477
guide 2396, 2435 hydrostatic 2396 journal 2404
allowable pressure 2409 bearing pressure 2408 capacity number 2413 classes 2409 clearance modulus 2409 diameter of bearing 2408 diametral clearance 2409
flanged housing 2452 friction losses 2477 handling precautions 2481 housing bore tolerances 2464–2465 housings, soft metal 2471
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