China Auto Bearings Lm48548/10 102949/10 104949/11A 802048/11 88048/10 88649/10 Taper Roller Bearing Hm518445/10 L45449/10 M12649/10 Lm11749/10 Wheel Bearings connecting rod bearing

Product Description

Taper Roller Bearings:

Hot Selling Inch Tapered Roller Bearings:

H212749/H212710
H414242/H414210
H414245/H414210
H414249/H414210
H715334/H715311
H715341A/H715311
H715343/H715311
H715345/H715311
H715347/H715311
H715348/H715311
H913840/H913810
H913842/H913810
H913849/H913810
H917840/H917810
H924045/H924571
H924045/H924571D
HH221449/HH221410
HH224335/HH224310
HH224349/HH224310V2
HH228340/HH228310
HH228340/HH228310V1
HH228340/HH228310V3
HH228340/HH228318V4
HH228349/HH228310
HH923649/HH923610

HM204049/HM25711
HM212047/HM212011
HM212049/HM212571
HM212049/HM212011
HM215249/HM215210
HM218238/HM218210
HM218248/HM218210
HM220149/HM220110
HM515745/HM515716
HM518445/HM518410
HM801346/HM801310
HM801346X/HM801310
HM801349/HM801310
HM85715/HM85710
HM85716/HM85710
HM85719/HM85710
HM85719/HM85711
HM85719/HM85712
HM804840/HM804810
HM804842/HM804810
HM8571/HM804810PX1
HM804846/HM804810
HM8571/HM804810
HM807040/HM85711
HM807044/HM85711
HM807046/HM85711
HM8571/HM85711
HM807049/HM85711
HM813840/HM813810
HM813849/HM813810
HM88542/HM88510
HM88547/HM88510
HM88648/HM88610PX1
HM88649/HM88610
HM89249/HM89210
HM89443/HM89410
HM89446/HM89410
HM89448/HM89410
HM89449/HM89410
HM89449/HM89411
HM903245/HM903210
HM903245/HM903210PX1
HM903248/HM903210
HM903249/HM903210
HM905843/HM905810
HM907643/HM907614
HM911245/HM911210
HM926740/HM926710
HM926745/HM926710

JH217749/JH217710PK
JH35719/JH35710
JH415647/JH415610
JH415647/JH415610PK
JHM318448/JHM318410
JHM522649/JHM522610
JHM534149/JHM534110PK
JHM725719/JHM725710
JHM807045/JHM8 0571 2
JHM88540/JHM88513PX1
JL68145/JL68111Z
JL69345/JL69310
JL69349/JL69310
JL69349/JL69310PK
JL819349/JL819310
JLM104948/JLM104910
JLM104948/JLM104910PK
JLM506849/JLM506810
JLM506849/JLM506810PK
JLM5 0571 8/JLM55710
JLM7 0571 9/JLM704610PK
JLM710949/JLM71571
JLM710949/JLM71571PK
JLM714149/JLM714110PK
JLM813049/JLM813571PK
JM25719/JM25710
JM25719/JM25710PK
JM207049/JM25711
JM511946/JM511910
JM511946/JM511910PK
JM515649/JM515610PK
JM612949/JM612910PK
JM714249/JM714210PK
JM716648/JM716610PK
JM716649/JM716610
JM716649/JM716610PK
JM718149/JM718110PK
JM719149/JM719113
JM725719/JM725710
JM734449/JM734410
JM736149/JM736110
JM738249/JM738210
JM738249/JM738210PK
JM822049/JM822571
JM822049/JM822571PK

L116149////L116110PX2
L21549/L21511
L217849/L217810
L225849/L225810
L319249/L319210
L327249/L327210
L420449/L42571
L432349/L432310
L433749/L433710
L44643/L44610
L44643L/L44610
L44649/L44610
L45449/L45410
L610549/L61571
L624549/L624510
L68149/L68110
L68149/L68111
L713049/L713571
L814749/L814710
LL225749/LL225710
LL319349/LL319310
LL639249/LL639210

LM157149/LM157110
LM104949/LM104911
LM104949/LM104912
LM11749/LM11710
LM11949/LM11910
LM11949/LM11910V1
LM11949L/LM11910
LM12749/LM12711
LM29748/LM29710
LM29748L/LM29710
LM29749/LM29710
LM29749/LM29711
LM3 Fax: 531 82964081

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Aligning Bearings
Load Direction: Axial Bearing

###

Samples:
US$ 10/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

1 Hardness 60-64HRC
2 Seal type N,NU,NJ,NF,NP,NUP,RN,RNU etc.cylindrical roller bearing
3 Precision grade P0,P6,P5,P4 /ABEC-1,ABEC-3,ABEC-5,ABEC-7
  Brand CHIK TIMKEN SKF KOYO NTN NSK…etc
4 Vibration level V1 V2 V3
5 Clearance C0,C2,C3,C4,C5
6 Cage type Steel ,Brass
7 Packing: Pallet, wooden case, commercial packaging or as customers’ requirement.
8 Roller Bearings Feature Long-life with high quality;
Low-noise with strict controlling the quality of deep groove ball bearing;
High-load by the advanced high-technical design;
Competitive price, which has the most valuable;
OEM service offered, to meet the customers’requirements.
9 Application These bearings are widely used on papermaking industry, electric motors, 
railways, motorcycles, pumps, wind turbines and gearboxes, Machine Tools,
Paper, Machinery, Semiconductor, Pumps, blowers, speed reducers, 
general machinery
10 Payment terms FOB,CFR,CIF,EXW
11 Delivery time Ship out within 3 days after receiving the payment (Small QTY);
 Ship out within 20days after receiving the payment (20"GP)
12 Certificate CE ISO9001

###

ISO Dimensions (mm)     Basic Load Rating (N)   Limitting speed ( r/min )   Weight
            Lubrication    
  d D B Dyn. C Stat. C0 Grease Oil  
NJ203 17 40 12 17600 14600 17000 20000 0.071
NJ202 15 35 11 12700 10400 19000 22000 0.049
NJ204 20 47 14 25700 22600 15000 18000 0.115
NJ2204 20 47 18 30600 28300 13000 18000 0.15
NJ205 25 52 15 29300 27700 13000 15000 0.142
NJ2205 25 52 18 34900 34600 12000 15000 0.17
NJ206 30 62 16 39100 37400 11000 13000 0.214
NJ2206 30 62 20 48900 49800 9700 13000 0.269
NJ207 35 72 17 50200 50200 9300 11000 0.314
NJ2207 35 72 23 61600 65300 8300 11000 0.415
NJ208 40 80 18 55700 55400 8300 9900 0.394
NJ2208 40 80 23 72300 77600 7400 9900 0.503
NJ209 45 85 19 63100 66400 7600 9200 0.451
NJ2209 45 85 23 76100 84600 6900 9200 0.55
NJ210 50 90 20 66100 71900 7100 8500 0.51
NJ2210 50 90 23 79700 91500 6400 8500 0.595
NJ211 55 100 21 86400 98700 6400 7700 0.667
NJ2211 55 100 25 101000 122000 5800 7700 0.827
NJ212 60 110 22 97700 107000 5800 6900 0.852
NJ2212 60 110 28 131000 157000 5200 6900 1.119

###

ISO Dimensions (mm)     Basic Load Rating (N)   Limitting speed ( r/min )   Weight
            Lubrication  
  d D B Dyn. C Stat. C0 Grease Oil  
NN3006 30 55 19 29000 34000 16000 19000 0.191
NN3006 K 30 55 19 29000 34000 16000 19000 0.191
NN3007 35 62 20 35500 44000 14000 17000 0.249
NN3007 K 35 62 20 35500 44000 14000 17000 0.249
NN3008 40 68 21 45000 58500 12000 15000 0.303
NN3008 K 40 68 21 45000 58500 12000 15000 0.303
NN3009 45 75 23 54000 72000 11000 14000 0.393
NN3009 K 45 75 23 54000 72000 11000 14000 0.393
NN3010 50 80 23 57000 80000 10000 13000 0.426
NN3010 K 50 80 23 57000 80000 10000 13000 0.426
NN3011 55 90 26 72000 100000 9000 11000 0.63
NN3011 K 55 90 26 72000 100000 9000 11000 0.63
NN3012 60 95 26 75000 110000 8500 10000 0.674
NN3012 K 60 95 26 75000 110000 8500 10000 0.674
NN3013 65 100 26 76500 116000 8000 9500 0.715
NN3013 K 65 100 26 76500 116000 8000 9500 0.715
NN3014 70 110 30 98000 150000 7000 8500 1.04
NN3014 K 70 110 30 98000 150000 7000 8500 1.04
NN3015 75 115 30 100000 156000 6700 8000 1.09
NN3015 K 75 115 30 100000 156000 6700 8000 1.09
NN3016 80 125 34 120000 186000 6300 7500 1.51
NN3016 K 80 125 34 120000 186000 6300 7500 1.51

###

Contact Information
Contact Person: Ms.Cindy Wang  ( Export Dep. )
Company: SHANDONG CHIK BEARING CO LTD
Add: No.9 Longao, Jinan city, Shandong, China
Web: chikbearing.en.made-in-china.com
Mob  0086 15806683165
Tel: 0086 531 82964086
Fax: 0086 531 82964081
Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Aligning Bearings
Load Direction: Axial Bearing

###

Samples:
US$ 10/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

1 Hardness 60-64HRC
2 Seal type N,NU,NJ,NF,NP,NUP,RN,RNU etc.cylindrical roller bearing
3 Precision grade P0,P6,P5,P4 /ABEC-1,ABEC-3,ABEC-5,ABEC-7
  Brand CHIK TIMKEN SKF KOYO NTN NSK…etc
4 Vibration level V1 V2 V3
5 Clearance C0,C2,C3,C4,C5
6 Cage type Steel ,Brass
7 Packing: Pallet, wooden case, commercial packaging or as customers’ requirement.
8 Roller Bearings Feature Long-life with high quality;
Low-noise with strict controlling the quality of deep groove ball bearing;
High-load by the advanced high-technical design;
Competitive price, which has the most valuable;
OEM service offered, to meet the customers’requirements.
9 Application These bearings are widely used on papermaking industry, electric motors, 
railways, motorcycles, pumps, wind turbines and gearboxes, Machine Tools,
Paper, Machinery, Semiconductor, Pumps, blowers, speed reducers, 
general machinery
10 Payment terms FOB,CFR,CIF,EXW
11 Delivery time Ship out within 3 days after receiving the payment (Small QTY);
 Ship out within 20days after receiving the payment (20"GP)
12 Certificate CE ISO9001

###

ISO Dimensions (mm)     Basic Load Rating (N)   Limitting speed ( r/min )   Weight
            Lubrication    
  d D B Dyn. C Stat. C0 Grease Oil  
NJ203 17 40 12 17600 14600 17000 20000 0.071
NJ202 15 35 11 12700 10400 19000 22000 0.049
NJ204 20 47 14 25700 22600 15000 18000 0.115
NJ2204 20 47 18 30600 28300 13000 18000 0.15
NJ205 25 52 15 29300 27700 13000 15000 0.142
NJ2205 25 52 18 34900 34600 12000 15000 0.17
NJ206 30 62 16 39100 37400 11000 13000 0.214
NJ2206 30 62 20 48900 49800 9700 13000 0.269
NJ207 35 72 17 50200 50200 9300 11000 0.314
NJ2207 35 72 23 61600 65300 8300 11000 0.415
NJ208 40 80 18 55700 55400 8300 9900 0.394
NJ2208 40 80 23 72300 77600 7400 9900 0.503
NJ209 45 85 19 63100 66400 7600 9200 0.451
NJ2209 45 85 23 76100 84600 6900 9200 0.55
NJ210 50 90 20 66100 71900 7100 8500 0.51
NJ2210 50 90 23 79700 91500 6400 8500 0.595
NJ211 55 100 21 86400 98700 6400 7700 0.667
NJ2211 55 100 25 101000 122000 5800 7700 0.827
NJ212 60 110 22 97700 107000 5800 6900 0.852
NJ2212 60 110 28 131000 157000 5200 6900 1.119

###

ISO Dimensions (mm)     Basic Load Rating (N)   Limitting speed ( r/min )   Weight
            Lubrication  
  d D B Dyn. C Stat. C0 Grease Oil  
NN3006 30 55 19 29000 34000 16000 19000 0.191
NN3006 K 30 55 19 29000 34000 16000 19000 0.191
NN3007 35 62 20 35500 44000 14000 17000 0.249
NN3007 K 35 62 20 35500 44000 14000 17000 0.249
NN3008 40 68 21 45000 58500 12000 15000 0.303
NN3008 K 40 68 21 45000 58500 12000 15000 0.303
NN3009 45 75 23 54000 72000 11000 14000 0.393
NN3009 K 45 75 23 54000 72000 11000 14000 0.393
NN3010 50 80 23 57000 80000 10000 13000 0.426
NN3010 K 50 80 23 57000 80000 10000 13000 0.426
NN3011 55 90 26 72000 100000 9000 11000 0.63
NN3011 K 55 90 26 72000 100000 9000 11000 0.63
NN3012 60 95 26 75000 110000 8500 10000 0.674
NN3012 K 60 95 26 75000 110000 8500 10000 0.674
NN3013 65 100 26 76500 116000 8000 9500 0.715
NN3013 K 65 100 26 76500 116000 8000 9500 0.715
NN3014 70 110 30 98000 150000 7000 8500 1.04
NN3014 K 70 110 30 98000 150000 7000 8500 1.04
NN3015 75 115 30 100000 156000 6700 8000 1.09
NN3015 K 75 115 30 100000 156000 6700 8000 1.09
NN3016 80 125 34 120000 186000 6300 7500 1.51
NN3016 K 80 125 34 120000 186000 6300 7500 1.51

###

Contact Information
Contact Person: Ms.Cindy Wang  ( Export Dep. )
Company: SHANDONG CHIK BEARING CO LTD
Add: No.9 Longao, Jinan city, Shandong, China
Web: chikbearing.en.made-in-china.com
Mob  0086 15806683165
Tel: 0086 531 82964086
Fax: 0086 531 82964081

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

bearing
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 Auto Bearings Lm48548/10 102949/10 104949/11A 802048/11 88048/10 88649/10 Taper Roller Bearing Hm518445/10 L45449/10 M12649/10 Lm11749/10 Wheel Bearings     connecting rod bearingChina Auto Bearings Lm48548/10 102949/10 104949/11A 802048/11 88048/10 88649/10 Taper Roller Bearing Hm518445/10 L45449/10 M12649/10 Lm11749/10 Wheel Bearings     connecting rod bearing
editor by czh 2022-12-06