Item Description

Item Name Tensioner Pulley Bearing
Brand Name NTN,KOYO,NACHI,IKO,TIMKEN
Seal Type  Open up Kind
Material Chrome Metal ,Stainless metal,Ceramic,Nylon
Clearance C0,C2,C3,C4,C5
Precision Quality P0,P6,P5,P4,P2(ABEC1, ABEC3, ABEC5, ABEC7, ABEC9)
Greese SRL ,PS2, Alvania R12 ,and so forth
Certifications ISO 9 VKM182 Lada (Vaz)
B VKM21031 CR1681 F-853 Audi / VW
074109243A VKM21041 CR3123 F-210963.one Audi / VW
57109243D VKM21045 CR3142 F-225766.1 Audi / VW
078109244F VKM21052 CR3129   Audi / VW
036109244D VKM21120 CR3145 F-231219 Audi / VW
036109181A VKM21121 CR3148 F-231220 Audi / VW
038109244H VKM21130 CR3 Audi / VW
038109244J VKM21147 CR3495 F-239652 Audi / VW
078109244G VKM21201 CR1643 F-123658 Audi / VW
7553565 VKM22151 CR1645 F-11571.one Fiat / Lancia
60811487 VKM22153 CR1834 F-123650 Alfa Romeo
7540301 VKM22160 CR1668 F-123624 Fiat / Lancia
60652129 VKM22173 CR1828 F-123653 Alfa Romeo
7763644 VKM22174 CR1896 F-123803 Alfa Romeo
6571624 VKM22177 CR3265 F-231098.two Fiat / Lancia
551871.three Fiat / Lancia
4740847 VKM22380 CR1666 F-220324 Fiat / Lancia
4740846 VKM22385 CR1665 F-220323 Fiat / Lancia
6571304 VKM22510 CR1874 F-123804 Alfa Romeo
5952181 VKM22630 CR1657 F-45605 Fiat / Lancia
94057171 VKM23120 CR1827 F-122124 Fiat / Lancia
830.forty six VKM23122 CR3590 F-122124.2 P-eugeot
830.2 VKM23130 CR3279 F-122574 P-eugeot
2S6Q6M250AA VKM23140 CR3511 F-123906.four Ford
830.forty two VKM23230 CR3410   P-eugeot
21215- VKM23240 CR1687 F-123369 Lada (Vaz)
1 Fiat / Lancia
830.29 VKM23244 CR3.5 Fiat / Lancia
VKM233 Fiat / Lancia
96FF6K254DA VKM241.two Ford
89FF6K254CB VKM24104 CR1875 F-49229.1 Ford
97FF6K254DA VKM24107 CR3094 F-140845.one Ford
6635942 VKM24210 CR1862 F-145712 Ford
6744307 VKM24211 CR1864 F-145713 Ford
978M6M250AA VKM24212 CR31 Ford
1 0571 seventy one VKM24213 CR3099 F-233879 Ford
157142 VKM24214 CR3101 F-231338 Ford
nine 0571 731 VKM25150 CR1898 F-218740.1 O-pel / GM
9128739 VKM25152 CR1899 F-218741.1 O-pel / GM
90180131 VKM252 O-pel / GM
90264571 VKM25201 CR1837 F-22 O-pel / GM
636418 VKM25202 CR1880 F-224963 O-pel / GM
94106 O-pel / GM
Y701-twelve-730 VKM25210 CR1683 F-123806 Mazda
5636425 VKM25212 CR1801 F-218108.four O-pel / GM
636416 VKM25213 CR1803 F-224966 O-pel / GM
924 O-pel / GM
VKM26571 CR3229 F-123778 R-enault
one hundred fifty        
7701349659 VKM261 O-pel / GM
770571489 VKM26102 CR1866 F-39990 R-enault
eighty two R-enault
VKM26114 CR3226 F-123733 R-enault
seventy seven R-enault
VKM26123 CR3231 F-123732 R-enault
305        
9110639 VKM26125 CR3226 F-123733 O-pel / GM
seventy seven R-enault
seventy seven R-enault
775718626 VKM26310 CR3208 F-123781 R-enault
VKM265 R-enault
MWM 38 O-pel / GM
7439146377 VKM26602 CR3362 F-224696 R-enault
ETC8560 VKM27404 CR3325 F-fourteen Audi / VW
57145276A VKM31 Audi / VW
078903341J VKM31571 CR3124 F-225712 Audi / VW
M VKM31571 CR3733   Audi / VW
59145276 VKM31039 CR3469   Audi / VW
57103341A VKM31041 CR3245 F-228319 Audi / VW
074145278F VKM31043 CR3133 F-231228 Audi / VW
5826571 VKM31059 CR3154 F-23 0571 Audi / VW
32145276 VKM31207 CR3483 F-551814 Seat
73501924 VKM32 Alfa Romeo
46440604 VKM32- three Alfa Romeo
6571349 VKM32 Alfa Romeo
46441096 VKM32015 CR1460 F-1238 Fiat / Lancia
6571427 VKM32030 CR1492   Fiat / Lancia

Application

Q: Are you a trading company or a manufacturer ?
A: We are a maker far more than sixteen years with skilled talent.

Q:Do you provide samples ? Are they free or extra ?
A:Sure, we could offer the sample, whilst could you pay out for the freight?

Q:What kind of freight will you use?
A:Shipment, FedEx, TNT, DHL, UPS and EMS etc.

Q:Could you make bearings with our OEM logo,color and packing?
A: Of course. Please inform us your brand logo,coloration and packing.

Q: How long is your delivery time?
A: Generally it will be 3-7 days if the goods are in stock although it will be 15-30 days if the goods are not in stock, which is according to your quantity.

Q: Will you check these products before shipment?
A: Yes, products will be strictly inspected by our very own specialist QC Process System ahead of cargo.

Q: What’s the Payment Terms ?
A: Usually we accept T/T ,western union ,and order online.

                             If you want to know a lot more specifics, remember to make contact with us.

Type: Tensioner Bearing
Material: Chrome Steel
ABS: Without ABS
Car Make: BMW
Bearings Type: Tensioner Bearing
Application: Truck Bus Car Tractor

###

Samples:
US$ 0.5/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

Product Name Tensioner Pulley Bearing
Brand Name NTN,KOYO,NACHI,IKO,TIMKEN
Seal Type  Open Type
Material Chrome Steel ,Stainless steel,Ceramic,Nylon
Clearance C0,C2,C3,C4,C5
Precision Grade P0,P6,P5,P4,P2(ABEC1, ABEC3, ABEC5, ABEC7, ABEC9)
Greese SRL ,PS2, Alvania R12 ,etc
Certifications ISO 9001
Package Box,Carton,Wooden Box,Plastic Tube or Per buyers requirement .
MOQ 10PCS
Service OEM
Sample Available
Payment Term  TT or L/C or Western Union
Port Guangzhou/Qingdao/Shanghai

###

OEM NO S-KF NO BREDA I-NA NO Model
7700108117 VKM16020 CR3230 F-550228 R-enault
7700720366 VKM16100 CR1845 F-38950 R-enault
4401609 VKM16101 CR1838 F-39508.5 O-pel / GM
8200102941 VKM16102 CR3458   R-enault
7700716767 VKM16110 CR1841 F-38149 R–enault
7700736419 VKM16112 CR1867 F-39508.5 R-enault
93160237 VKM16113 CR3243   O-pel / GM
8200071267 VKM16129 CR3701   R-enault
829.1 VKM16200 CR1688 F-37629 P-eugeot
7700871168 VKM16204 CR1868 F-120726 R-enault
7700852114 VKM16210 CR1842 F-37630.1 R-enault
7700871169 VKM16212 CR1890 F-123149 R-enault
8200127467 VKM16503 CR3244 F-237843 R-enault
8200061345 VKM16550 CR3011 F-237804 R-enault
8200061345 VKM16550A CR3011 F-237804 R-enault
8200079341 VKM16551 CR3012 F-238349 R-enault
8200079341 VKM16551A CR3012 F-238349 R-enault
7439135036 VKM16602 CR3359 F-224693 R-enault
7439440329 VKM16604 CR3209 F-233878.1 R-enault
LHP100390 VKM17302 CR5004 F-140827 Rover / Land-Rover
LHP100840 VKM17303 CR3337 F-143108 Rover / Land-Rover
LHP10015 VKM17310 CR3319 F-140064.1 Rover / Land-Rover
LHP100860 VKM17406 CR3341 F-140564.1 Rover / Land-Rover
21051-006124 VKM18200 CR1860 F-123648 Lada (Vaz)
069 109 243 B VKM21031 CR1681 F-85300.2 Audi / VW
074109243K VKM21032 CR1812 F-220125 Audi / VW
074109243A VKM21041 CR3123 F-210963.1 Audi / VW
075109243D VKM21045 CR3142 F-225766.1 Audi / VW
078109244F VKM21052 CR3129   Audi / VW
036109244D VKM21120 CR3145 F-231219 Audi / VW
036109181A VKM21121 CR3148 F-231220 Audi / VW
038109244H VKM21130 CR3002 F-239421 Audi / VW
038109244J VKM21147 CR3495 F-239652 Audi / VW
078109244G VKM21201 CR1643 F-123658 Audi / VW
7553565 VKM22151 CR1645 F-110591.1 Fiat / Lancia
60811487 VKM22153 CR1834 F-123650 Alfa Romeo
7540301 VKM22160 CR1668 F-123624 Fiat / Lancia
60652129 VKM22173 CR1828 F-123653 Alfa Romeo
7763644 VKM22174 CR1896 F-123803 Alfa Romeo
60812624 VKM22177 CR3265 F-231098.2 Fiat / Lancia
55187100 VKM22179 CR3695   Fiat / Lancia
46400054 VKM22242 CR1894 F-110628.3 Fiat / Lancia
4740847 VKM22380 CR1666 F-220324 Fiat / Lancia
4740846 VKM22385 CR1665 F-220323 Fiat / Lancia
60559304 VKM22510 CR1874 F-123804 Alfa Romeo
5952181 VKM22630 CR1657 F-45605 Fiat / Lancia
9400830379 VKM23120 CR1827 F-122124 Fiat / Lancia
830.46 VKM23122 CR3590 F-122124.2 P-eugeot
830.2 VKM23130 CR3279 F-122574 P-eugeot
2S6Q6M250AA VKM23140 CR3511 F-123906.4 Ford
830.42 VKM23230 CR3410   P-eugeot
21215- VKM23240 CR1687 F-123369 Lada (Vaz)
1006138        
9615923380 VKM23241 CR1887 F-122216 Fiat / Lancia
830.29 VKM23244 CR3001   P-eugeot
9400830319 VKM23246 CR3527 F-122986.5 Fiat / Lancia
96094102 VKM23300 CR1856 F-121793 Fiat / Lancia
96FF6K254DA VKM24100 CR1817 F-140073.2 Ford
89FF6K254CB VKM24104 CR1875 F-49229.1 Ford
97FF6K254DA VKM24107 CR3094 F-140845.1 Ford
6635942 VKM24210 CR1862 F-140222 Ford
6744307 VKM24211 CR1864 F-140223 Ford
978M6M250AA VKM24212 CR3100 F-231137 Ford
1095025 VKM24213 CR3099 F-233879 Ford
1053942 VKM24214 CR3101 F-231338 Ford
90412731 VKM25150 CR1898 F-218740.1 O-pel / GM
9128739 VKM25152 CR1899 F-218741.1 O-pel / GM
90180131 VKM25200 CR1696 F-220135 O-pel / GM
90264022 VKM25201 CR1837 F-220086 O-pel / GM
636418 VKM25202 CR1880 F-224963 O-pel / GM
94106001 VKM25208 CR1683 F-123806 O-pel / GM
Y701-12-730 VKM25210 CR1683 F-123806 Mazda
5636425 VKM25212 CR1801 F-218108.4 O-pel / GM
636416 VKM25213 CR1803 F-224966 O-pel / GM
9240033 VKM25312 CR3117 F-124054 O-pel / GM
77 00 107 VKM26020 CR3229 F-123778 R-enault
150        
7701349659 VKM26100 CR1844 F-38153 R-enault
9110690 VKM26101 CR1839 F-120182 O-pel / GM
7700733489 VKM26102 CR1866 F-39990 R-enault
8200064664 VKM26105 CR3537 F-239960 R-enault
7700875307 VKM26114 CR3226 F-123733 R-enault
7700116192 VKM26115 CR3207 F-123779 R-enault
77 00 875 VKM26123 CR3231 F-123732 R-enault
305        
9110639 VKM26125 CR3226 F-123733 O-pel / GM
7700116054 VKM26128 CR3236 F-124284 R-enault
7700721690 VKM26211 CR1843M F-37734.2 R-enault
7700856370 VKM26212 CR1891 F-121538 R-enault
7700108626 VKM26310 CR3208 F-123781 R-enault
7700857492 VKM26500 CR3159 F-123137 R-enault
MWM 38001 VKM26501 CR3205 F-123142 O-pel / GM
7439146377 VKM26602 CR3362 F-224696 R-enault
ETC8560 VKM27404 CR3325 F-140070 Ford
38,145,276 VKM31002 CR1485   Audi / VW
028 145 278E VKM31004 CR1491 F-214797 Audi / VW
037145276A VKM31007 CR3130 F-231224 Audi / VW
078903341J VKM31010 CR3124 F-220292 Audi / VW
028 145 278 M VKM31025 CR3733   Audi / VW
59145276 VKM31039 CR3469   Audi / VW
059903341A VKM31041 CR3245 F-228319 Audi / VW
074145278F VKM31043 CR3133 F-231228 Audi / VW
58260511 VKM31059 CR3154 F-230875 Audi / VW
32145276 VKM31207 CR3483 F-551814 Seat
73501924 VKM32001 CR1446   Alfa Romeo
60814917 VKM32003 CR1475 F-236660 Alfa Romeo
46440604 VKM32005 CR1451 F-110672- 300 Fiat
73501925 VKM32006 CR1455 F-552541 Alfa Romeo
60812349 VKM32007 CR1463   Alfa Romeo
60812645 VKM32009 CR1444 F-123755 Alfa Romeo
46441096 VKM32015 CR1460 F-123800 Fiat / Lancia
55180011 VKM32027 CR3273 F-236665 Fiat / Lancia
60814427 VKM32030 CR1492   Fiat / Lancia
Type: Tensioner Bearing
Material: Chrome Steel
ABS: Without ABS
Car Make: BMW
Bearings Type: Tensioner Bearing
Application: Truck Bus Car Tractor

###

Samples:
US$ 0.5/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

Product Name Tensioner Pulley Bearing
Brand Name NTN,KOYO,NACHI,IKO,TIMKEN
Seal Type  Open Type
Material Chrome Steel ,Stainless steel,Ceramic,Nylon
Clearance C0,C2,C3,C4,C5
Precision Grade P0,P6,P5,P4,P2(ABEC1, ABEC3, ABEC5, ABEC7, ABEC9)
Greese SRL ,PS2, Alvania R12 ,etc
Certifications ISO 9001
Package Box,Carton,Wooden Box,Plastic Tube or Per buyers requirement .
MOQ 10PCS
Service OEM
Sample Available
Payment Term  TT or L/C or Western Union
Port Guangzhou/Qingdao/Shanghai

###

OEM NO S-KF NO BREDA I-NA NO Model
7700108117 VKM16020 CR3230 F-550228 R-enault
7700720366 VKM16100 CR1845 F-38950 R-enault
4401609 VKM16101 CR1838 F-39508.5 O-pel / GM
8200102941 VKM16102 CR3458   R-enault
7700716767 VKM16110 CR1841 F-38149 R–enault
7700736419 VKM16112 CR1867 F-39508.5 R-enault
93160237 VKM16113 CR3243   O-pel / GM
8200071267 VKM16129 CR3701   R-enault
829.1 VKM16200 CR1688 F-37629 P-eugeot
7700871168 VKM16204 CR1868 F-120726 R-enault
7700852114 VKM16210 CR1842 F-37630.1 R-enault
7700871169 VKM16212 CR1890 F-123149 R-enault
8200127467 VKM16503 CR3244 F-237843 R-enault
8200061345 VKM16550 CR3011 F-237804 R-enault
8200061345 VKM16550A CR3011 F-237804 R-enault
8200079341 VKM16551 CR3012 F-238349 R-enault
8200079341 VKM16551A CR3012 F-238349 R-enault
7439135036 VKM16602 CR3359 F-224693 R-enault
7439440329 VKM16604 CR3209 F-233878.1 R-enault
LHP100390 VKM17302 CR5004 F-140827 Rover / Land-Rover
LHP100840 VKM17303 CR3337 F-143108 Rover / Land-Rover
LHP10015 VKM17310 CR3319 F-140064.1 Rover / Land-Rover
LHP100860 VKM17406 CR3341 F-140564.1 Rover / Land-Rover
21051-006124 VKM18200 CR1860 F-123648 Lada (Vaz)
069 109 243 B VKM21031 CR1681 F-85300.2 Audi / VW
074109243K VKM21032 CR1812 F-220125 Audi / VW
074109243A VKM21041 CR3123 F-210963.1 Audi / VW
075109243D VKM21045 CR3142 F-225766.1 Audi / VW
078109244F VKM21052 CR3129   Audi / VW
036109244D VKM21120 CR3145 F-231219 Audi / VW
036109181A VKM21121 CR3148 F-231220 Audi / VW
038109244H VKM21130 CR3002 F-239421 Audi / VW
038109244J VKM21147 CR3495 F-239652 Audi / VW
078109244G VKM21201 CR1643 F-123658 Audi / VW
7553565 VKM22151 CR1645 F-110591.1 Fiat / Lancia
60811487 VKM22153 CR1834 F-123650 Alfa Romeo
7540301 VKM22160 CR1668 F-123624 Fiat / Lancia
60652129 VKM22173 CR1828 F-123653 Alfa Romeo
7763644 VKM22174 CR1896 F-123803 Alfa Romeo
60812624 VKM22177 CR3265 F-231098.2 Fiat / Lancia
55187100 VKM22179 CR3695   Fiat / Lancia
46400054 VKM22242 CR1894 F-110628.3 Fiat / Lancia
4740847 VKM22380 CR1666 F-220324 Fiat / Lancia
4740846 VKM22385 CR1665 F-220323 Fiat / Lancia
60559304 VKM22510 CR1874 F-123804 Alfa Romeo
5952181 VKM22630 CR1657 F-45605 Fiat / Lancia
9400830379 VKM23120 CR1827 F-122124 Fiat / Lancia
830.46 VKM23122 CR3590 F-122124.2 P-eugeot
830.2 VKM23130 CR3279 F-122574 P-eugeot
2S6Q6M250AA VKM23140 CR3511 F-123906.4 Ford
830.42 VKM23230 CR3410   P-eugeot
21215- VKM23240 CR1687 F-123369 Lada (Vaz)
1006138        
9615923380 VKM23241 CR1887 F-122216 Fiat / Lancia
830.29 VKM23244 CR3001   P-eugeot
9400830319 VKM23246 CR3527 F-122986.5 Fiat / Lancia
96094102 VKM23300 CR1856 F-121793 Fiat / Lancia
96FF6K254DA VKM24100 CR1817 F-140073.2 Ford
89FF6K254CB VKM24104 CR1875 F-49229.1 Ford
97FF6K254DA VKM24107 CR3094 F-140845.1 Ford
6635942 VKM24210 CR1862 F-140222 Ford
6744307 VKM24211 CR1864 F-140223 Ford
978M6M250AA VKM24212 CR3100 F-231137 Ford
1095025 VKM24213 CR3099 F-233879 Ford
1053942 VKM24214 CR3101 F-231338 Ford
90412731 VKM25150 CR1898 F-218740.1 O-pel / GM
9128739 VKM25152 CR1899 F-218741.1 O-pel / GM
90180131 VKM25200 CR1696 F-220135 O-pel / GM
90264022 VKM25201 CR1837 F-220086 O-pel / GM
636418 VKM25202 CR1880 F-224963 O-pel / GM
94106001 VKM25208 CR1683 F-123806 O-pel / GM
Y701-12-730 VKM25210 CR1683 F-123806 Mazda
5636425 VKM25212 CR1801 F-218108.4 O-pel / GM
636416 VKM25213 CR1803 F-224966 O-pel / GM
9240033 VKM25312 CR3117 F-124054 O-pel / GM
77 00 107 VKM26020 CR3229 F-123778 R-enault
150        
7701349659 VKM26100 CR1844 F-38153 R-enault
9110690 VKM26101 CR1839 F-120182 O-pel / GM
7700733489 VKM26102 CR1866 F-39990 R-enault
8200064664 VKM26105 CR3537 F-239960 R-enault
7700875307 VKM26114 CR3226 F-123733 R-enault
7700116192 VKM26115 CR3207 F-123779 R-enault
77 00 875 VKM26123 CR3231 F-123732 R-enault
305        
9110639 VKM26125 CR3226 F-123733 O-pel / GM
7700116054 VKM26128 CR3236 F-124284 R-enault
7700721690 VKM26211 CR1843M F-37734.2 R-enault
7700856370 VKM26212 CR1891 F-121538 R-enault
7700108626 VKM26310 CR3208 F-123781 R-enault
7700857492 VKM26500 CR3159 F-123137 R-enault
MWM 38001 VKM26501 CR3205 F-123142 O-pel / GM
7439146377 VKM26602 CR3362 F-224696 R-enault
ETC8560 VKM27404 CR3325 F-140070 Ford
38,145,276 VKM31002 CR1485   Audi / VW
028 145 278E VKM31004 CR1491 F-214797 Audi / VW
037145276A VKM31007 CR3130 F-231224 Audi / VW
078903341J VKM31010 CR3124 F-220292 Audi / VW
028 145 278 M VKM31025 CR3733   Audi / VW
59145276 VKM31039 CR3469   Audi / VW
059903341A VKM31041 CR3245 F-228319 Audi / VW
074145278F VKM31043 CR3133 F-231228 Audi / VW
58260511 VKM31059 CR3154 F-230875 Audi / VW
32145276 VKM31207 CR3483 F-551814 Seat
73501924 VKM32001 CR1446   Alfa Romeo
60814917 VKM32003 CR1475 F-236660 Alfa Romeo
46440604 VKM32005 CR1451 F-110672- 300 Fiat
73501925 VKM32006 CR1455 F-552541 Alfa Romeo
60812349 VKM32007 CR1463   Alfa Romeo
60812645 VKM32009 CR1444 F-123755 Alfa Romeo
46441096 VKM32015 CR1460 F-123800 Fiat / Lancia
55180011 VKM32027 CR3273 F-236665 Fiat / Lancia
60814427 VKM32030 CR1492   Fiat / Lancia

Choosing the Right Ball Bearing for Your Application

When choosing a Ball Bearing, there are several things to consider. These factors include: the size, lubricant type, presence of corrosive agents, stray electrical currents, and more. It can be challenging to choose the right type, size, and type of ball bearing for your application. You should also carefully calculate the loads to determine the right size. Here are some tips for choosing the right Ball Bearing for your application.

Single-row

The single-row ball bearing is one of the most popular types of bearings. The inner and outer ring are designed with raceway grooves that are shaped slightly larger than the balls. This type of bearing has a low torque and can handle high-speed applications with minimal power loss. The radial dimensions of single-row ball bearings also vary, so it is possible to find one that fits your specific application. Besides the above-mentioned advantages, single-row ball bearings are also available with varying grease levels and are widely applicable to applications where the space is limited.
Single-row ball bearings are also called angular-contact ball bearings. Because of their single-row design, they are not separable and can accommodate a high-speed, heavy-duty application. Single-row angular-contact ball bearings can only handle axial load in one direction, and they must be installed in pairs for pure radial loads. Single-row ball bearings are a popular type of rolling bearings and can be used for a wide range of applications.
bearing

Self-aligning

The self-aligning ball bearing was invented by Sven Wingquist, a plant engineer for a textile company in Sweden. While he was responsible for making production as efficient as possible, he soon realized that the machinery he had in place wasn’t working as efficiently as it could. Although ball bearings are great for reducing friction, they were not flexible enough to compensate for misalignments in the machine.
Self-aligning ball bearings have two rows of balls and a common sphered raceway. The inner ring is curved and combines the two rows of balls into one cage. These bearings can tolerate shaft misalignment and compensate for static angular defects. They can be used in simple woodworking machinery, ventilators, and conveying equipment. They are often the preferred choice for applications where shaft alignment is an issue.

Ceramic

A Ceramic ball bearing is a type of high-performance bearing that is available in both full-ceramic and hybrid forms. The main differences between ceramic and steel ball bearings are their construction, lubrication, and mobility. High-quality ceramic ball bearings are durable, and they are ideal for corrosive and high-temperature applications. The material used to create these bearings helps prevent electrolytic corrosion. They are also ideal for reducing the friction and lubrication requirements.
Ceramic balls are harder and less brittle than steel balls, which gives them a higher degree of rigidity. Ceramics also have a higher hardness, with a hardness of Rc75-80 compared to Rc58-64 for steel balls. Their high compressive strength is approximately 5 to 7 times greater than steel. In addition, they have a very low coefficient of friction, which allows them to spin at higher speeds and with less friction. This increases their lifespan and durability, and decreases the energy needed to turn cranks.

Steel

Unlike traditional bearings, steel balls have a relatively uniform hardness. Carbon steel, for instance, is 2.1% carbon by weight. According to the American Iron and Steel Institute, copper content must be no more than 0.40% and manganese content should not be more than 1.65 g/cm3. After carbonizing, steel balls undergo a process called sizing, which improves their roundness geometry and hardness.
The main differences between steel ball bearings and ceramic ball bearings can be traced to their different materials. Ceramic balls are made from zirconium dioxide or silicon nitride. Silicon nitride is harder than steel and resists shocks. The result is increased speed and longer service life. Polyoxymethylene acetal (PMMA) bearing balls are known for their stiffness, strength, and tolerance, but are not as common as steel ball bearings.

Plastic

The most popular types of plastic ball bearings are made of polypropylene or PTFE. These bearings are used in applications requiring higher chemical resistance. Polypropylene is a structural polymer that offers excellent physical and chemical properties, including excellent resistance to organic solvents and degreasing agents. Its lightweight, low moisture absorption rate, and good heat resistance make it an excellent choice for high-temperature applications. However, plastic bearings are not without their drawbacks, especially when operating at very high temperatures or under heavy loads.
Compared to metal bearings, plastic ball-bearings do not require lubrication. They also are highly corrosion-resistant, making them an excellent choice for wash-down applications. They are also post-, autoclave-, and gamma sterilizable. Many conventional steel ball-bearings cannot handle the high temperatures of food processing or swimming pools. In addition to high temperature applications, plastic ball bearings are resistant to chemicals, including chlorine.
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Glass

Plastic sliding bearings are molded bearings made of engineering plastic. With self-lubricating modification technology, these bearings can be produced by injection molding of plastic beads. They are widely used in various industries such as office equipment, fitness and automotive equipment. In addition to plastic bearings, glass balls are used in a variety of other applications, including medical equipment. Glass ball bearings have excellent corrosion resistance, excellent mechanical properties, and are electrically insulators.
Plastic ball bearings are made of all-plastic races and cages. These bearings are suitable for applications that are exposed to acids and alkalis. Because they are cheaper than glass balls, plastic ball bearings are popular in chemical-exposed environments. Stainless steel balls are also resistant to heat and corrosion. But the main disadvantage of plastic ball bearings is that they are not as strong as glass balls. So, if weight and noise is your main concern, consider using plastic balls instead.

Miniature

The global miniature ball bearing market is expected to reach US$ 2.39 Billion by 2027, at a CAGR of 7.2%. Growth in the region is attributed to technological advancement and government initiatives. Countries such as India and China are attracting FDIs and emphasizing the establishment of a global manufacturing hub. This is boosting the market for miniature ball bearings. The miniscule ball bearings are manufactured in small quantities and are very small.
Some manufacturers produce miniature ball bearings in different materials and designs. Chrome steel is the most popular material for miniature ball bearings because of its high load capacity, low noise properties, and lower cost. But the cost of stainless steel miniature bearings is low, since the amount of steel used is minimal. Stainless steel miniature bearings are the smallest in size. Therefore, you can choose stainless steel mini ball bearings for high-speed applications.

Angular-contact

Angular-contact ball bearings have three components: a cage, inner ring, and balls. Angular-contact ball bearings can support high axial and radial loads. Various design and manufacturing attributes make angular-contact ball bearings suitable for a variety of applications. Some features of this bearing type include a special lubricant, different cage materials, and different coatings.
The size of an angular-contact ball bearing is determined by the design units: outer ring width, axial load, and radial load. Depending on the type of application, an angular-contact ball bearing may be manufactured in double-row, triple-row, or quadruple-row configurations. Angular contact ball bearings can be classified according to their design units, which range from metric to imperial. A higher ABEC number means tighter tolerances. To determine the tolerance equivalent of a particular bearing, consult a standard Angular-contact ball bearing table.
Angular-contact ball bearings feature high and low-shoulder configurations. They have two-dimensional races that accommodate axial and radial loads. They are available in self-retaining units with solid inner and outer rings, and ball and cage assemblies. Cages made of cast and wrought brass are the most popular, but lightweight phenolic cages are also available. The latter is a better choice because it doesn’t absorb oil and has lower rolling friction.
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Materials

When it comes to the construction of a ball bearing, high-quality raw materials are a crucial component. These materials not only affect the overall quality of a ball bearing, but also influence the cost. That’s why you should pay close attention to raw material quality. In addition to that, raw materials should be tested several times before the manufacturing process to ensure quality. Read on for some information about the different types of materials used to make ball bearings.
Steel is the most common material for ball bearings. Most ball bearings contain stainless steel balls, which are remarkably corrosion-resistant. They are also resistant to saltwater and alkalis. However, stainless steel balls are heavier than plastic ones, and they are also magnetic, which may be a drawback in some applications. If you’re looking for a metal-free option, glass balls are the way to go. They’re sturdy, lightweight, and resistant to a wide range of chemicals.

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editor by czh 2023-01-22