Product Description

Product Description

for CZPT excavator parts PC220-7 PC220-8 circle ass’y/Slewing bearing/slewing ring/Slewing Ring Bearing206-25- TORQUE CONVERTER A. 175-13-21125 1751321125 PUMP 175-13-21124 1751321124 PUMP 175-13-21123 1751321123 PUMP 195-13-11143 1951311143 GEAR 195-13-11152 1951311152 PLATE (KIT) 57110-61045 157161045 BOLT 57110-31035 157131035 BOLT 175-13-21160 1751321160 BEARING 175-13-21253 1751321253 PILOT 175-13-21654 1751321654 SHAFT 175-13-21692 1751321692 HOLDER 175-13-21712 1751321712 PLATE (KIT) 195-13-11810 1951311810 BOLT 178-13-11720 1781311720 RING,SEAL 04064-06525 406406525 RING,SNAP 175-13-22122 1751322122 RACE 175-13-22524 1751322524 SHAFT 04064-5710 40645710 RING,SNAP 07 TRANSMISSION ASS’Y 175-15-05717 TRANSMISSION ASS’Y 175-15-05715 TRANSMISSION ASS’Y 175-15-05714 TRANSMISSION ASS’Y 175-15-05715 TRANSMISSION ASS’Y 175-15-05714 TRANSMISSION ASS’Y 175-15- TRANSMISSION ASS’Y 175-15- SHAFT 175-43-28241 LEVER 0571 1-0 0571 45710 0571 PIN 175-43-28280 1754328280 YOKE 175-43- BRACKET 0571 3-71571 -743371571 CASE 0571 0-71031 -74357131 HOUSING 0571 7-71041 -743771041 GEAR 0571 3-71051 -743371051 GEAR 0571 0-71061 -74357161 BEARING 0571 1-11190 -743111190 BOLT 57150-51295 -1 0571 195 BOLT 01582-11210 -158211210 NUT 01602-21236 -165711236 WASHER 0571 0-71160 74357160 SEAL 04065-5718 40655718 RING 07 BRACKET 0571 0-71132 -74357132 HOUSING 0571 3-71041 -743371041 GEAR 0571 3-71103 -743371103 PUMP ASS’Y 0571 0-71113 -74357113 BRACKET 0571 0-71110 -74357110 BRACKET 0571 0-71150 -74357150 BUSHING 0571 3-71571 -743371571 CASE 0571 0-71130 -74357130 HOUSING ASS’Y 0571 3-71042 -743371042 GEAR 0571 3-71052 -743371052 GEAR 5711- PIN,DOWEL 01602-21236 -165711236 WASHER,SPRING 0571 0-71160 74357160 SEAL,OIL 04065-5718 40655718 RING,SANP 175-49-05715 1754905715 FILTER ASS’Y 175-49-05714 1754905714 FILTER ASS’Y 175-49-05713 1754905713 FILTER ASS’Y 175-49-05712 1754905712 FILTER ASS’Y 175-49-5712 175495712 CASE ASS’Y 175-49-5711 175495711 CASE ASS’Y 175-49-5710 175495710 CASE ASS’Y 07042-571 7042571 PLUG 175-49-11580 1754911580 ELEMENT 175-43-14150 1754314150 CAGE 170-14-18171 1701418171 SLEEVE 170-14-18161 1701418161 SPRING 145-49-12460 1454912460 BOLT 01641-00608 164100608 WASHER 01511-30607 151130607 NUT 01590-00607 159000607 NUT 04050-01215 405001215 PIN 6003200-4-40 6003200440 SPRING 175-49-05712 1754905712 COVER ASS’Y 175-49-05711 1754905711 COVER ASS’Y 175-49-05710 1754905710 COVER ASS’Y 175-49-21733 1754921733 COVER 175-49-21732 1754921732 COVER 175-49-21730 1754921730 COVER 07000-57115 700057115 O-RING 07000-5710 70005710 O-RING 57110-31440 157131440 BOLT 57140-31440 1571140 BOLT 01602-01442 165711442 WASHER 57110-31295 10157195 BOLT 175-49-05716 1754905716 FILTER ASS’Y 175-49-5713 175495713 CASE ASS’Y 07043-55711 75715711 PLUG 04050-01215 405001215 PIN,COTTER 175-49-05713 1754905713 COVER ASS’Y 07042-15718 75715718 PLUG 175-49-22165 1754922165 TUBE 175-49-22164 1754922164 TUBE 175-49-22163 1754922163 TUBE 175-49-22162 1754922162 TUBE 175-49-22161 1754922161 TUBE 07000-03042 700003042 O-RING 57110-31065 157131065 BOLT 154-19-17122 1541917122 PLUG 154-19-17121 1541917121 PLUG 07003-01621 700301621 GASKET 175-49-21371 1754921371 BRACKET 0571 3-57138 728357138 CLIP 01554-57111 155457111 NUT 175-49-21383 1754921383 TUBE 175-49-21382 1754921382 TUBE 175-49-21381 1754921381 TUBE 57110-31070 157131070 BOLT 5710-21406 710571406 HOSE 5710-21403 710571403 HOSE 5710-01403 710001403 HOSE 175-49-00262 1754900262 TUBE ASS’Y 175-49-00261 1754900261 TUBE ASS’Y 175-49-00260 1754900260 TUBE ASS’Y 07003-01621 700301621 GASKET 07042-5718 70425718 PLUG 175-49-22680 1754922680 CLAMP 175-61-14760 1756114760 CLAMP 175-49-21421 1754921421 CLAMP 175-49-22690 1754922690 CLAMP 175-61-14770 1756114770 CLAMP 57110-31045 157131045 BOLT 175-49-05713 1754905713 TUBE ASS’Y 175-49-05712 1754905712 TUBE ASS’Y 175-49-05711 1754905711 TUBE ASS’Y 175-49-05710 1754905710 TUBE ASS’Y 175-49-22430 1754922430 HOSE 170-49-13270 1704913270 TUBE 07000- 0571 1 7000 0571 1 O-RING 175-49-21432 1754921432 TUBE 175-49-21431 1754921431 TUBE 175-49-21451 1754921451 TUBE 07000-03040 700003040 O-RING 175-49-21483 1754921483 TUBE 175-49-21482 1754921482 TUBE 175-49-21481 1754921481 TUBE 175-49-21480 1754921480 TUBE 07000-5711 70005711 O-RING 5710-20403 71571403 HOSE 5710-00403 710000403 HOSE 175-849-2180 1758492180 HOSE,(FOR SLAG HANDLING) 154-19-25330 1541925330 CLAMP 175-49-21384 1754921384 TUBE 5712-21406 715711406 HOSE 175-49-00264 1754900264 TUBE ASS’Y 175-49-00263 1754900263 TUBE ASS’Y 154-19-17122 1541917122 PLUG 07042-15718 75715718 PLUG 175-49-05715 1754905715 TUBE ASS’Y 175-49-05714 1754905714 TUBE ASS’Y 57110-31050 157131050 BOLT 175-49-22431 1754922431 TUBE 175-49-21453 1754921453 TUBE 175-49-21452 1754921452 TUBE 5712-21404 715711404 HOSE 175-49-21433 1754921433 TUBE 5712-20403 715710403 HOSE 5712-20408 715710408 HOSE 07230-10422 723571422 UNION 57110-51070 157151070 BOLT 175-49-00265 1754900265 TUBE ASS’Y,(OUTLET SIDE) 175-49-05716 1754905716 TUBE ASS’Y,(INLET SIDE) 07230-20422 723571422 UNION 07230-10422 723571422 UNION 57110-51050 157151050 BOLT 175-49-21454 1754921454 TUBE 57110-51075 157151075 BOLT 175-49-25680 1754925680 TUBE 07260-03213 726003213 HOSE 0571 1-00549 728100549 CLAMP 175-49-21434 1754921434 TUBE 571-13320 723913320 NUT 07002-03334 75713334 O-RING 175-49-25710 1754925710 TUBE 175-49-25720 1754925720 TUBE 07236-50422 723650422 ELBOW 5712-20406 715710406 HOSE 175-49-22570 1754922570 HOSE 5712-01235 737201235 BOLT 5711-01460 737101460 FLANGE 07000-03048 700003048 O-RING 175-49-22121 1754922121 TUBE 175-49-22120 1754922120 TUBE 07000-03032 700003032 O-RING 57110-31080 157131080 BOLT 175-49-22131 1754922131 BRACKET 175-49-22130 1754922130 BRACKET 0571 3-5714 72835714 CLIP 01599-57111 159957111 NUT 07231-10628 723110628 ELBOW 07231-00628 723100628 ELBOW 07000- 0571 1 7000 0571 1 O-RING 571-12410 723912410 NUT 571-57110 723957110 NUT 5712-20603 715710603 HOSE 5712-00603 715710603 HOSE 175-49-21173 1754921173 TUBE 175-49-21172 1754921172 TUBE 175-49-21171 1754921171 TUBE 175-49-22142 1754922142 TUBE 175-49-22141 1754922141 TUBE 175-49-22140 1754922140 TUBE 5712-20607 715710607 HOSE 175-49-22153 1754922153 TUBE 175-49-22152 1754922152 TUBE 175-49-22151 1754922151 TUBE 175-49-22150 1754922150 TUBE 175-79-33181 1757933181 TUBE,(FOR VARIABLE RIPPER) 57110-21075 157121075 BOLT,(FOR VARIABLE RIPPER) 195-78-22640 1957822640 PLUG 175-49-21234 1754921234 TUBE 175-49-21233 1754921233 TUBE 175-49-21232 1754921232 TUBE 175-49-21231 1754921231 TUBE 175-49-21241 1754921241 CLAMP 5712-20605 715710605 HOSE 175-49-22451 1754922451 HOSE 175-49-22450 1754922450 HOSE 175-49-21472 1754921472 TUBE 175-49-21471 1754921471 TUBE 175-49-21470 1754921470 TUBE 57110-31060 157131060 BOLT 5710-20603 71571603 HOSE 5710-00603 710000603 HOSE 175-849-2170 1758492170 HOSE,(FOR SLAG HANDLING) 175-49-11911 1754911911 TUBE 175-49-11910 1754911910 TUBE 07201-51527 720151527 NUT 07201-01527 725711527 NUT 07260-01416 726001416 HOSE 0571 0-57123 728057123 CLAMP 01643-51232 164351232 WASHER 5711-21465 737121465 FLANGE 175-49-22123 1754922123 TUBE 175-49-22122 1754922122 TUBE 175-49-22134 1754922134 BRACKET 175-49-22133 1754922133 BRACKET 175-49-22132 1754922132 BRACKET 57110-31635 157131635 BOLT 175-49-21174 1754921174 TUBE 5712-20608 715710608 HOSE 175-49-23861 1754923861 TUBE 175-49-23860 1754923860 TUBE 07260-5714 7265714 HOSE 0571 1-00609 728100609 CLAMP 175-49-22124 1754922124 TUBE 57110-51080 157151080 BOLT 571-10628 723210628 ELBOW 07002-57134 75712434 O-RING 175-49-21175 1754921175 TUBE 175-49-22143 1754922143 TUBE 57110-51060 157151060 BOLT 175-49-23862 1754923862 TUBE 57110-51065 157151065 BOLT 175-49-21235 1754921235 TUBE 175-49-23510 1754923510 ELBOW 57110-51635 157151635 BOLT 0571 3-24354 728324354 CLIP 07213-51013 721351013 CONNECTOR 175-49-23580 1754923580 TUBE 07260-20922 726571922 HOSE 175-49-23570 1754923570 TUBE 07260-21410 726571410 HOSE 0571 1-05719 728105719 CLAMP 07201-61527 720161527 NUT 57110-51060 157151060 BOLT,SPRING 175-21-00059 1752100059 CASE ASS’Y 175-21-00058 1752100058 CASE ASS’Y 175-21-00057 1752100057 CASE ASS’Y 175-21-31109 1752131109 CASE 175-21-31108 1752131108 CASE 175-21-31107 1752131107 CASE 175-21-31105 1752131105 CASE 175-21-31104 1752131104 CASE 175-21-31103 1752131103 CASE 175-21-31102 1752131102 CASE 175-21-31541 1752131541 BAR 175-21-31540 1752131540 BAR 07049-57125 704957125 PLUG 07049-57130 704957130 PLUG 07049- 0571 9 7049 0571 9 PLUG 170-21-11190 1757111190 NIPPLE 07030-05712 703005712 BREATHER 07044-13620 704413620 PLUG 07044-03620 704403620 PLUG 175-21-11181 1752111181 COVER 01640-01223 164001223 WASHER 01590-01215 159001215 NUT 175-21-32170 1752132170 COVER 57110-32040 157132040 BOLT 57140-32040 104032040 BOLT 175-21-32135 1752132135 GASKET 175-21-32134 1752132134 GASKET 175-21-32132 1752132132 GASKET 175-21-32131 1752132131 GASKET 07000-05470 700005470 O-RING 5711-01842 457101842 PIN 01120-32050 112032050 STUD 01582-57116 158257116 NUT 01580-32016 158032016 NUT 57110-32050 157132050 BOLT 57140-32050 104032050 BOLT 195-49-12110 1954912110 CAP ASS’Y 07050-00000 705000000 CAP 175-21-35230 1752135230 CAP,(FOR VHangZhouLISM PROTECTION) 175-21-00060 1752100060 TUBE ASS’Y 175-21-32142 1752132142 TUBE 175-21-32141 1752132141 TUBE 175-79-31410 1757931410 TUBE,(FOR GIANT RIPPER) 175-79-33251 1757933251 TUBE,(FOR VARIABLE GIANT RIPPER) 175-21-32143 1752132143 TUBE 195-78-22640 1957822640 PLUG 07002-57134 75712034 O-RING 154-21-11610 1542111610 STRAINER 130-60-13260 1306013260 STRAINER 101-04-11270 1571411270 STRAINER 101-04-11250 1571411250 STRAINER 150-60-22410 1506571410 RING 101-04-11260 1571411260 RING 154-21-11581 1542111581 GASKET 57140-31230 1571130 BOLT 175-21-32152 1752132152 GAUGE 175-21-32151 1752132151 GAUGE 07000-57118 70057118 O-RING 175-21-31510 1752131510 TUBE 130-60-13241 1306013241 STRAINER 175-21-31520 1752131520 GAUGE 154-21-11640 1542111640 CAP ASS’Y 175-21-34101 1752134101 STEERING CASE ASS’Y 175-21-31542 1752131542 BAR (WELDED) 04065-5718 40655718 RING 175-21-35220 1752135220 STRAINER 175-21-35150 1752135150 TUBE 175-21-35170 1752135170 PLATE 175-21-35160 1752135160 BRACKET 175-21-35240 1752135240 BRACKET 07260-24156 726571156 HOSE 0571 0-05429 728005429 CLAMP 175-21-35140 1752135140 TUBE 07260-24122 726571122 HOSE 07260-24128 726571128 HOSE 175-21-35130 1752135130 TUBE 175-21-32153 1752132153 GAUGE 175-21-35180 1752135180 TUBE 175-21-35210 1752135210 GASKET 175-21-35191 1752135191 BOLT 175-21-35190 1752135190 BRACKET 0571 3-22236 728322236 CLIP 0571 2-57188 728257188 CLAMP 175-21-34106 1752134106 STEERING CASE ASS’Y 175-21-34105 1752134105 STEERING CASE ASS’Y 175-21-34104 1752134104 STEERING CASE ASS’Y 175-21-31543 1752131543 BAR (WELDED) 01602-57160 165712060 WASHER,SPRING 175-21-32185 1752132185 GASKET 175-21-32135 1752132135 GASKET 07049-57125 704957125 PLUG 07049- 0571 9 7049 0571 9 PLUG,(WITH RIPPER) 07049- 0571 9 7049 0571 9 PLUG,(WITH DRAWBAR) 07049-01620 704901620 PLUG 07049-57134 704957134 PLUG 07049-03038 704903038 PLUG 07049-03342 704903342 PLUG 07049-01418 704901418 PLUG 07049-01215 704901215 PLUG 175-862-1135 1758621135 FRAME 175-862-1134 1758621134 FRAME 175-862-1133 1758621133 FRAME 01602-57160 165712060 WASHER 175-862-4502 1758624502 MAIN FRAME ASS’Y 175-862-4501 1758624501 MAIN FRAME ASS’Y 175-862-4500 1758624500 MAIN FRAME ASS’Y 07049- 0571 9 7049 0571 9 PLUG 175-21-46300 1752146300 STEERING CASE ASS’Y 175-21-35151 1752135151 TUBE 571-10045 7 0571 0045 STRAINER 571-20000 75710000 CAP 07092-00000 709200000 CAP,(FOR VHangZhouLISM PROTECTION) 175-21-35230 1752135230 CAP,(FOR VHangZhouLISM PROTECTION) 175-21-35242 1752135242 BRACKET 57110-31571 157131571 BOLT 175-21-35141 1752135141 TUBE 175-21-35132 1752135132 TUBE 175-21-35131 1752135131 TUBE 154-21-11951 1542111951 GASKET 154-21-11581 1542111581 GASKET 175-21-35182 1752135182 TUBE 175-21-35181 1752135181 TUBE 175-21-35211 1752135211 GASKET 175-21-35210 1752135210 GASKET 195-49-12990 1954912990 CLIP 175-21-35410 1752135410 PLATE 195-49-13110 1954913110 BRACKET 195-49-13120 1954913120 PLATE 57110-31030 157131030 BOLT 175-21-38630 1752138630 BRACKET 175-21-32112 1752132112 SHAFT 175-21-00080 1752100080 PINION & GEAR ASS’Y 170-21-12170 1757112170 BOLT 01580-01613 158001613 NUT 01503-31613 150331613 NUT 170-21-12160 1757112160 PLATE 175-21-32190 1752132190 CAGE 175-21-12160 1752112160 CAGE 175-21-00032 1752100032 SHIM ASS’Y 175-21-00031 1752100031 SHIM ASS’Y 06000-32219 600032219 BEARING 57140-31440 1571140 BOLT 175-21-32162 1752132162 HUB 170-22-11130 1757111130 RING 154-21-12242 1542112242 RING 57140-31645 BOLT 170-21-12240 1757112240 PLATE 170-21-12141 1757112141 NUT 154-21-22211 1542122211 PACKING 175-21-32113 1752132113 SHAFT 178-15-13240 1781513240 SHAFT,BEVEL 175-21-22140 1752122140 GEAR,BEVEL 01602-01442 165711442 WASHER,SPRING 198-21-11490 1982111490 HUB 170-22-11130 1757111130 RING,SEAL 198-21-11480 1982111480 PLATE 175-22-00033 1752200033 CLUTCH ASS’Y 175-22-00032 1752200032 CLUTCH ASS’Y 175-22-00031 1752200031 CLUTCH ASS’Y 175-22-00030 1752200030 CLUTCH ASS’Y 175-22-21271 1752221271 DRUM 175-22-21270 1752221270 DRUM 175-22-21281 1752221281 DRUM 175-22-21280 1752221280 DRUM 175-22-21131 1752221131 PLATE 175-22-21130 1752221130 PLATE 175-22-21141 1752221141 PISTON 175-22-21140 1752221140 PISTON 154-22-11230 1542211230 DISC 175-22-21150 1752221150 DISC 175-22-21160 1752221160 PLATE 175-22-21170 1752221170 SPRING 175-22-21180 1752221180 SPRING 175-22-21190 1752221190 RING,SEAL 175-22-21210 1752221210 RING,SEAL 175-22-21220 1752221220 RING,BACK-UP 175-22-21231 1752221231 SLEEVE 175-22-21230 1752221230 SLEEVE 175-22-21242 1752221242 BOLT 175-22-21241 1752221241 BOLT 175-22-21240 1752221240 BOLT 175-22-21250 1752221250 WASHER,SPRING 175-33-00082 1753300082 BRAKE BAND ASS’Y,L.H. 175-33-00081 1753300081 BRAKE BAND ASS’Y,L.H. 175-33-00080 1753300080 BRAKE BAND ASS’Y,L.H. 175-33-00092 1753300092 BRAKE BAND ASS’Y,R.H. 175-33-00091 1753300091 BRAKE BAND ASS’Y,R.H. 175-33-00090 1753300090 BRAKE BAND ASS’Y,R.H. 175-33-00571 1753300571 BRAKE BAND ASS’Y 175-33-0571 175330571 BRAKE BAND ASS’Y 175-33-29310 1753329310 LINING 175-33-28130 1753328130 LINING 175-33-28130 1753328130 LINING 170-33-12132 1703312132 LINING 175-33-29320 1753329320 LINING 175-33-28140 1753328140 LINING 178-33-12130 1783312130 LINING 170-33-12142 1703312142 LINING 175-33-29330 1753329330 LINING 175-33-28340 1753328340 LINING 04412-0571 44120571 RIVET 100-33-13120 1003313120 SPRING 175-33-24210 1753324210 PIN 175-33-24220 1753324220 WASHER 04050-04050 405004050 PIN,COTTER 175-33-24231 1753324231 ROD 175-33-24230 1753324230 ROD 154-33-11620 1543311620 PLATE 154-33-11610 1543311610 SPRING 154-33-11540 1543311540 BLOCK 175-33-24272 1753324272 BOLT 175-33-24270 1753324270 BOLT 175-33-24240 1753324240 END 175-33-24260 1753324260 PIN 175-33-24251 1753324251 LEVER 175-33-24250 1753324250 LEVER 154-33-11650 1543311650 SEAT 150-33-12171 1503312171 SPRING 175-33-24281 1753324281 BRACKET,L.H. 175-33-24280 1753324280 BRACKET,L.H. 175-33-24291 1753324291 BRACKET,R.H. 175-33-24290 1753324290 BRACKET,R.H. 57110-32055 157132055 BOLT 57140-32055 104032055 BOLT 154-33-11720 1543311720 PIN,DOWEL 175-33-24311 1753324311 BOLT 175-33-24310 1753324310 BOLT 175-33-24320 1753324320 YOKE 175-33-24330 1753324330 YOKE 04050-5711 40505711 PIN,COTTER 175-33-24450 1753324450 PIN 175-33-24390 1753324390 PIN 01501-31809 150131809 NUT 175-33-24342 1753324342 NUT 175-33-24341 1753324341 NUT 170-33-13330 1703313330 ROLLER 01641-21626 164121626 WASHER 198-43-13220 1984313220 SPACER 154-33-21270 1543321270 SPACER 01302-00612 135710612 SCREW 04059-57120 45717120 WIRE 15

 

FAQ

Q1:You are a trader or manufacturer . 
      We are a trader .

Q2: How about the payment terms ?
       
We usually accept T/T . Other terms also could be negotiated .

Q3: Warranty 
      3-6 months warranty.  If any parts break during the warranty, Just offer us the proof . We’ll send you a new 1 !

Q5:If parts be lost during delivery , how solve ? 
      We’ll resend the parts free of charge . 

 
 
 

 
 

 
 
 
 
 
 

Type: Filter
Application: Bulldozer & Excavator
Certification: ISO9001: 2000
Condition: New
Model: PC220
Brand: Shantui/Catepillar/Hitachi/Volvo
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Request Sample

bearing

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with two M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the two parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you’ll be able to move it around with a stepper.

Angular contact

Ball bearings are made with angular contacts that result in an angle between the bearing’s races. While the axial load moves in one direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to five times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing’s axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

bearing
Ball bearings are circular structures with two separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It’s also less resistant to heat than aluminum oxide, so it’s best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you’ll be able to transfer more energy, have less erosion, and improve the life of your machine. With today’s advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it’s best to select the right one for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between one and five million rotations. As long as its surface contact area is as small as possible, it’s likely to be serviceable for at least one million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

bearing
The basic principle behind sliding-contact bearings is that two surfaces move in contact with one another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn’t run in a bronze-lined bore, or vice versa. Instead, one element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their two surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in two different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the two elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

China manufacturer Excavator Slewing Ring; Slewing Ring Bearing/Swing Circle Slewing Bearing; 207-25-61100 for CZPT Excavator Parts PC300-7 PC360-7   bearing exampleChina manufacturer Excavator Slewing Ring; Slewing Ring Bearing/Swing Circle Slewing Bearing; 207-25-61100 for CZPT Excavator Parts PC300-7 PC360-7   bearing example
editor by CX 2023-05-06