China Mini Size Mr52 Deep Groove Ball Bearings Electric Toothbrush Motor Bearing with High Rpm bearing driver kit

Product Description

 

Product Description

Miniature bearings, otherwise known as instrument or micro bearings, have a nominal outside diameter of under 9mm. Small ball bearings have a nominal inner diameter of less than 10mm and an outer diameter upwards of 10mm. It is common for miniature and small ball bearings to be made from Chrome steel or stainless steel due to the relatively low force of objects exerted upon them.

 

 

Application

Common applications:
Motor
High speed moter
Toys like Skateboards, Inline Skates
Gyros
Anemometers
Flow meters
Miniature gearboxes
Small motors
Radio controlled models

 

Product Parameters

 

No. Size Rated load Weight
Inner Diameter Out Diameter Width (B) Chamfering Dynamic Static
d D Open Type Shielded Type rsmin (r) Cr Cr Close
mm inch mm inch mm inch mm inch mm inch N N KG
MR52 2 0.0787  5 0.1968  1.5 0.0590  2.5 0.0984  0.1 0.004  181 78
MR62 2 0.0787  6 0.2362  2.5 0.0984  0.1 0.004  181 78
MR72 2 0.0787  7 0.2756  3 0.1181  0.1 0.004  181 78
MR63 3 0.1181  6 0.2362  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR83 3 0.1181  8 0.3150  3 0.1181  4 0.1575  0.1 0.004  181 78
MR93 3 0.1181  9 0.3543  3 0.1181  4 0.1969  0.1 0.004  181 78
MR74 4 0.1575  7 0.2756  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR84 4 0.1575  8 0.3150  2 0.0787  3 0.1181  0.1 0.004  181 78 0.00056 
MR85 5 0.1969  8 0.3150  2 0.0787  2.5 0.0984  0.008  0.003  181 78 0.00571 
MR95 5 0.1969  9 0.3543  2.5 0.0984  3 0.1181  0.15 0.006  332 142 0.00058 
MR104 4 0.1575  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  715 265 0.00133 
MR105 5 0.1969  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  460 196 0.00126 
MR106 6 0.2362  10 0.3937  2.5 0.0984  3 0.1181  0.1 0.004  460 196 0.00070 
MR115 5 0.1969  11 0.4331  4 0.1575  4 0.1575  0.15 0.006  735 284 0.00062 
MR117 7 0.2756  11 0.4331  2.5 0.0984  3 0.1181  0.1 0.004  450 206 0.00071 
MR126 6 0.2362  12 0.4724  3 0.1181  4 0.1575 0.15 0.006  774 329 0.00166 
MR128 8 0.3150  12 0.4724  2.5 0.0984  3.5 0.1378 0.1 0.004  510 255 0.00099 
MR137 7 0.2756  13 0.5118  3 0.1181  4 0.1575 0.15 0.006  715 265 0.5711 
MR148 8 0.3150  14 0.5512  3.5 0.1378  4 0.1575 0.15 0.006  715 265 0.05719 
MR166 6 0.2362  16 0.6299  6 0.2362  6 0.2362 0.15 0.006  1470 600 0.0 0571  

Certifications

Company Profile

HangZhou CZPT Bearing Co., Ltd was founded in 2571 , but the company has been doing deep groove bearing domestic business already for 12 years with our own logo “JVB” so that has a certain reputation in China

Main Products:

A: 681-689, 6800-6888,691-699, 6900-6976,16001-16056,Thin Wall Bearing.
B: 603-609,623-629,633-638,Micro-Bearing.
C:Micro-MR,MF Series with Flange.
D:6000-6571,6200-6210,6300-6310,Deep Groove Ball bearing.

 

Related Products

Packaging & Shipping

FAQ

1. who are we?

We are based in ZHangZhoug, China, start from 2571,sell to Mid East(30.00%),Eastern Europe(20.00%),Domestic Market(15.00%),South Asia(10.00%),North America(10.00%),Southeast Asia(10.00%),South America(5.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Deep Groove Ball Bearing,Thin Wall Bearing,Micro-Bearing,Miniature Bearings,Inch bearings

4. why should you buy from us not from other suppliers?
HangZhou CZPT Bearing Co., Ltd was founded in 2571 , but has been doing deep groove bearing domestic business already for 12 years with own logo “JVB” so that has a good reputation in China and close coorparation factories to make sure stable quality.

5. what services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF;
Accepted Payment Currency: USD, CNY;
Accepted Payment Type: T/T,L/C,D/P D/A, MoneyGram, Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese

 

US $0.11-0.15
/ Piece
|
50 Pieces

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.



To be negotiated|


Freight Cost Calculator

###

Contact Angle: 15-60
Aligning: Non-Aligning Bearing
Separated: Separated

###

Samples:
US$ 0.15/Piece
1 Piece(Min.Order)

|

Order Sample

###

Customization:

###

No. Size Rated load Weight
Inner Diameter Out Diameter Width (B) Chamfering Dynamic Static
d D Open Type Shielded Type rsmin (r) Cr Cr Close
mm inch mm inch mm inch mm inch mm inch N N KG
MR52 2 0.0787  5 0.1968  1.5 0.0590  2.5 0.0984  0.1 0.004  181 78
MR62 2 0.0787  6 0.2362  2.5 0.0984  0.1 0.004  181 78
MR72 2 0.0787  7 0.2756  3 0.1181  0.1 0.004  181 78
MR63 3 0.1181  6 0.2362  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR83 3 0.1181  8 0.3150  3 0.1181  4 0.1575  0.1 0.004  181 78
MR93 3 0.1181  9 0.3543  3 0.1181  4 0.1969  0.1 0.004  181 78
MR74 4 0.1575  7 0.2756  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR84 4 0.1575  8 0.3150  2 0.0787  3 0.1181  0.1 0.004  181 78 0.00056 
MR85 5 0.1969  8 0.3150  2 0.0787  2.5 0.0984  0.008  0.003  181 78 0.00025 
MR95 5 0.1969  9 0.3543  2.5 0.0984  3 0.1181  0.15 0.006  332 142 0.00058 
MR104 4 0.1575  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  715 265 0.00133 
MR105 5 0.1969  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  460 196 0.00126 
MR106 6 0.2362  10 0.3937  2.5 0.0984  3 0.1181  0.1 0.004  460 196 0.00070 
MR115 5 0.1969  11 0.4331  4 0.1575  4 0.1575  0.15 0.006  735 284 0.00062 
MR117 7 0.2756  11 0.4331  2.5 0.0984  3 0.1181  0.1 0.004  450 206 0.00071 
MR126 6 0.2362  12 0.4724  3 0.1181  4 0.1575 0.15 0.006  774 329 0.00166 
MR128 8 0.3150  12 0.4724  2.5 0.0984  3.5 0.1378 0.1 0.004  510 255 0.00099 
MR137 7 0.2756  13 0.5118  3 0.1181  4 0.1575 0.15 0.006  715 265 0.00201 
MR148 8 0.3150  14 0.5512  3.5 0.1378  4 0.1575 0.15 0.006  715 265 0.00219 
MR166 6 0.2362  16 0.6299  6 0.2362  6 0.2362 0.15 0.006  1470 600 0.00580 
US $0.11-0.15
/ Piece
|
50 Pieces

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.



To be negotiated|


Freight Cost Calculator

###

Contact Angle: 15-60
Aligning: Non-Aligning Bearing
Separated: Separated

###

Samples:
US$ 0.15/Piece
1 Piece(Min.Order)

|

Order Sample

###

Customization:

###

No. Size Rated load Weight
Inner Diameter Out Diameter Width (B) Chamfering Dynamic Static
d D Open Type Shielded Type rsmin (r) Cr Cr Close
mm inch mm inch mm inch mm inch mm inch N N KG
MR52 2 0.0787  5 0.1968  1.5 0.0590  2.5 0.0984  0.1 0.004  181 78
MR62 2 0.0787  6 0.2362  2.5 0.0984  0.1 0.004  181 78
MR72 2 0.0787  7 0.2756  3 0.1181  0.1 0.004  181 78
MR63 3 0.1181  6 0.2362  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR83 3 0.1181  8 0.3150  3 0.1181  4 0.1575  0.1 0.004  181 78
MR93 3 0.1181  9 0.3543  3 0.1181  4 0.1969  0.1 0.004  181 78
MR74 4 0.1575  7 0.2756  2 0.0787  2.5 0.0984  0.1 0.004  181 78
MR84 4 0.1575  8 0.3150  2 0.0787  3 0.1181  0.1 0.004  181 78 0.00056 
MR85 5 0.1969  8 0.3150  2 0.0787  2.5 0.0984  0.008  0.003  181 78 0.00025 
MR95 5 0.1969  9 0.3543  2.5 0.0984  3 0.1181  0.15 0.006  332 142 0.00058 
MR104 4 0.1575  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  715 265 0.00133 
MR105 5 0.1969  10 0.3937  3 0.1181  4 0.1575  0.15 0.006  460 196 0.00126 
MR106 6 0.2362  10 0.3937  2.5 0.0984  3 0.1181  0.1 0.004  460 196 0.00070 
MR115 5 0.1969  11 0.4331  4 0.1575  4 0.1575  0.15 0.006  735 284 0.00062 
MR117 7 0.2756  11 0.4331  2.5 0.0984  3 0.1181  0.1 0.004  450 206 0.00071 
MR126 6 0.2362  12 0.4724  3 0.1181  4 0.1575 0.15 0.006  774 329 0.00166 
MR128 8 0.3150  12 0.4724  2.5 0.0984  3.5 0.1378 0.1 0.004  510 255 0.00099 
MR137 7 0.2756  13 0.5118  3 0.1181  4 0.1575 0.15 0.006  715 265 0.00201 
MR148 8 0.3150  14 0.5512  3.5 0.1378  4 0.1575 0.15 0.006  715 265 0.00219 
MR166 6 0.2362  16 0.6299  6 0.2362  6 0.2362 0.15 0.006  1470 600 0.00580 

Types of Ball Bearings

There are several types of ball bearings: Double-row angular contact, Four-point contact, Self-aligning, and Ceramic hybrid. Here’s a brief description of each. For more information, read our article about Double-row angular contact ball bearings. You’ll be better informed about how they’re made. Also, learn about how the cages that hold the balls in place are secured with rivets.

Double-row, angular-contact bearing

Double-row, angular-contact ball bearings are similar in their contact surfaces in one direction, and the two pairs of bearings are installed axially opposite to one another. This design allows them to support combined loads in axial and radial directions. These types of bearings are used for high-precision, high-speed applications. They can be used in everything from turbines to dentistry equipment. Double-row, angular-contact bearings are available at Grainger, as are single-row versions.
Double-row, angular-contact ball bearings are a popular option for applications where high precision and high speed are required. The design features of these bearings are ideal for applications with axial space restrictions. In contrast, they are smaller than two single-row angular-contact bearings and are available in steel, polyamide, or brass cages. Whether you need a cage for high speed or hard operating conditions is up to you. If you are unsure about the right cage for your application, contact Schaeffler.
Single-row angular-contact ball bearings are the most common type of bearings. Double-row bearings are also available with a shielded outer ring, which protects the balls inside the bearing from external contaminants. Because these double-row bearings are a good choice for applications requiring high performance, they are often the most affordable option. They offer similar performance as single-row bearings but are much more rigid.
Preloading is a key performance characteristic for double-row angular-contact ball bearings. Preloading can decrease the service life of double-row angular-contact ball bearings by up to 380 percent. Alternatively, you can preload double-row angular-contact ball bearings by placing spacers between their outer rings. Good double-row angular-contact bearing installation will increase working accuracy and bearing life.
bearing

Four-point contact ball bearing

The Four Point Contact Ball Bearing Market can be segmented into three types: 35 Degree, 45 Degree, and Other. The 35 Degree segment is expected to witness the fastest growth over the next few years, owing to its increased operational speed and competence in axial and radial axis load handling. Other types of four-point contact ball bearings include the Miniature and Deep Groove varieties. These are widely used in automobiles, aerospace, and other industries.
These bearings are designed for oil-free screw compressors, and they feature an outer-ring guided brass cage to reduce friction and increase running accuracy. In addition, they have lower maintenance costs compared to conventional bearings. However, they have a higher mean roughness value than their counterparts. High-speed operations require high-speed bearings that can withstand fast speed changes. This is because of the higher friction rate, which results from four-point contact.
The Four-Point Contact Ball Bearing is a highly versatile product, as it can handle radial, thrust, and moment loads. Because of this, it is often the first choice for slow to moderate-speed applications. This design also has a simplified assembly process, requiring only a single double-half-turn to install. It is the first choice of many automotive OEMs because it is extremely efficient. If you want a ball bearing with these benefits, you should contact a local bearing company.
The Four-Point Contact Ball Bearing Market will continue to grow despite a tough economy and volatile trade conditions. Demand for automotive and aerospace components is expected to grow alongside a variety of technological advancements. Meanwhile, demand for energy-efficient products will continue to increase with changes in trade policy, an imbalance in the supply-side ecosystem, and geopolitical risk. And while all these factors will continue to drive the market growth, a few challenges are worth considering.
The Four-Point Contact Bearing is designed with the same basic structure as its two-point counterpart. In a four-point contact ball bearing, one ball can have four distinct points of contact with two rings. Two of these contact points may be in diagonal position. The two remaining contact points change position and accommodate radial loads. Consequently, the Four-Point Contact Bearing is more flexible and robust than its two-point counterparts.
bearing

Self-aligning ball bearing

The self-aligning ball bearing is an incredibly useful tool in many industries. This type of bearing has a sealing lip that makes contact with a smooth chamfer on the inner ring. Because of the self-aligning nature of these bearings, they are not prone to misalignment. They can withstand temperatures ranging from -30°C to 120°C and should not be heated prior to installation.
A self-aligning ball bearing is an elastomer-based spherical-shaped bearing with two rows of rolling elements. These bearings can accommodate large radial loads, and their outer ring raceway is curved to provide a spherical effect. The inner ring, or cage, can be either cylindrical or conical. The inner diameter of a self-aligning ball bearing is normally cylindrical, but some are conical. They typically have three oil holes.
When choosing a self-aligning ball bearing, look for a model with a large enough bearing diameter to accommodate the shaft’s bending. Self-aligning bearings may also be interchangeable with standard ball bearing assemblies. You can find individual values in manufacturer catalogues. These bearings are useful in limited applications, although they are not necessarily ideal for everything. For example, in applications where combined loads are the main concern, self-aligning ball bearings should only be used if the application requires minimal misalignment.
A self-aligning ball bearing is a highly-efficient, energy-efficient solution for a variety of applications. It is a simple, low-maintenance solution that makes your life easier. Its unique outer raceway allows restraining springs to absorb the deflection that is common in other bearings. The result is a cooler, smoother running vehicle. It also helps prevent misalignment, which makes it ideal for use in many applications.
The SKF self-aligning ball bearing is an excellent choice for applications involving heavy deflection of the shaft. They are the lowest-friction bearing available. Their steel plate reinforced seals prevent them from separating from the shaft during operation. They are also resistant to oil, making them the perfect solution for high-speed applications. In addition to this, they are designed to work in a wide range of temperatures.
bearing

Ceramic hybrid ball bearing

A hybrid ball bearing made from a combination of steel and ceramics is a good option for high-speed applications requiring electrical isolation. This combination offers an extended lifespan and minimal electrical corrosion or seizure risk. In addition, the hybrid ball bearings have less friction than steel bearings and can operate at low speeds. To learn more about this hybrid type of bearing, continue reading. We’ll also discuss how it can help your application.
Full ceramic balls are generally harder than steel, but they do have lower density, meaning they’re not subject to the same high centrifugal forces as steel balls. These benefits make ceramic ball bearings much more durable, with long lifespans. Both full and hybrid ceramic ball bearings are available from CZPT. Read on to learn more about each type. Here’s a look at some of the benefits of each. You’ll be pleasantly surprised.
A hybrid ball bearing consists of steel inner and outer rings and a ceramic ball. It can withstand high speeds and loads, but it’s also designed to operate in extreme temperatures. This hybrid ball bearing also requires minimal lubrication and is suitable for a variety of applications. Because of its unique characteristics, hybrid bearings are lightweight and hard, and they spin faster than steel balls. But how do you choose the right one for your application?
A ceramic ball bearing is better than a steel one for many applications. Its greater speed capability and lower friction allow it to operate at higher speeds than steel balls. It is also less sensitive to fluctuations in lubrication conditions than steel balls. They also tend to be cheaper, so it makes sense to invest in one. It’s worth your while. They last longer, and they don’t require a run-in period.
A hybrid ball bearing is the best choice for electric spindles with high speed and heavy loads. A hybrid ceramic ball bearing has the advantage of low heat and high stiffness, and can operate at high speeds and loads. This thesis explores the dynamic characteristics of a hybrid ceramic ball bearing, including analysis calculations and experiment verification. The results provide reliable data and lay the foundation for professional spindle optimum design tests. It is a worthy addition to any machine shop.

China Mini Size Mr52 Deep Groove Ball Bearings Electric Toothbrush Motor Bearing with High Rpm     bearing driver kitChina Mini Size Mr52 Deep Groove Ball Bearings Electric Toothbrush Motor Bearing with High Rpm     bearing driver kit
editor by czh 2022-12-01