Product Description

Detailed Parameters

600 Series
Bearing No. Basic Dimensions Weight(kg) Designation
d(mm) D(mm) B(mm) B1(mm)
606 6 17 6 6 0.0571  606 Z 606 ZZ 606 RS 606 2RS

Ball Bearings and Applications

Ball Bearings:
1. Deep Groove Ball Bearing
2. Self-Aligning Ball Bearing
3. Angular Contact Ball Bearing
4. Thrust Ball Bearing

1. Electric motors
2. Elevators
3. Conveyor systems
4. Agriculture industry
5. Steering applications
6. Industrial pumps and drive cars
7. Pulp and paper industry
8. Industrial gearboxes
9. Trucks, trailers and buses

Specifications of Miniature Ball Bearing

600 Series
Bearing No. Basic Dimensions Weight(kg) Designation
d(mm) D(mm) B(mm) B1(mm)
603 3 9 3 5 0.00087  603 Z 603 ZZ    
623 3 10 4 4 0.00165  623 Z 623 ZZ    
674 4 7 2 2.5 0.00571  674 Z 674 ZZ    
684 4 9 2.5 4 0.00063  684 Z 684 ZZ    
694 4 11 4 4 0.00017  694 Z 694 ZZ    
604 4 12 4 4 0.05710  604 Z 604 ZZ 604 RS 604 2RS
624 4 13 5 5 0.00303  624 Z 624 ZZ 624 RS 624 2RS
634 4 16 5 5 0.00524  634 Z 634 ZZ 634 RS 634 2RS
675 5 8 2 2.5 0.00026  675 Z 675 ZZ    
685 5 11 3 5 0.00120  685 Z 685 ZZ 685 RS 685 2RS
695 5 13 4 4 0.05715  695 Z 695 ZZ 695 RS 695 2RS
605 5 14 5 5 0.0 0571   605 Z 605 ZZ 605 RS 605 2RS
625 5 16 5 5 0.00495  625 Z 625 ZZ 625 RS 625 2RS
686 6 13 3.5 5 0.00191  686 Z 686 ZZ 686 RS 686 2RS
696 6 15 5 5 0.00388  696 Z 696 ZZ 696 RS 696 2RS
606 6 17 6 6 0.0571  606 Z 606 ZZ 606 RS 606 2RS
626 6 19 6 6 0.00815  626 Z 626 ZZ 626 RS 626 2RS
687 7 14 3.5 5 0.05710  687 Z 687 ZZ 687 RS 687 2RS
697 7 17 5 5 0.00526  697 Z 697 ZZ 697 RS 697 2RS
607 7 19 6 6 0.00767  607 Z 607 ZZ 607 RS 607 2RS
627 7 22 7 7 0.01270  627 Z 627 ZZ 627 RS 627 2RS
637 7 26 9 9 0.57100  637 Z 637 ZZ 637 RS 637 2RS
678 8 12 2.5 3.5 0.00071  678 Z 678 ZZ    
688 8 16 4 5 0.00330  688 Z 688 ZZ 688 RS 688 2RS
698 8 19 6 6 0.00723  698 Z 698 ZZ 698 RS 698 2RS
608 8 22 7 7 0.01210  608 Z 608 ZZ 608 RS 608 2RS
628 8 24 8 8 0.01720  628 Z 628 ZZ 628 RS 628 2RS
679 9 14 3 4.5 0.00305  679 Z 679 ZZ 679 RS 679 2RS
689 9 17 4 5 0.0571  689 Z 689 ZZ 689 RS 689 2RS
699 9 20 6 6 0.00845  699 Z 699 ZZ 699 RS 699 2RS
609 9 24 7 7 0.01450  609 Z 609 ZZ 609 RS 609 2RS
629 9 26 8 8 0.01950  629 Z 629 ZZ 629 RS 629 2RS
639 9 30 10 10 0.03650  639 Z 639 ZZ 639 RS 639 2RS

The Factory
The advantage ball bearing factory located in the bearing manufacturing center – HangZhou, China. There are 2 plants, 1 specialized in manufacturing common grade ball bearing, another 1 professional in EMQ bearing with stabilized Z3V3 quality, the factory takes her every effort in purchasing the most advanced bearing processes equipment, and NC automatic facilities are widely used in the factory and has become a bearing factory owning the most advanced processes equipment in China. The Granville own ball bearing factory division manufacturing a whole range of radial deep groove ball bearings, open – shield – sealed – chrome steel, and stainless steel available. 


Product Offering
Bore size 3mm and up
Closures Open
Non-contact metallic shields
Non-contact seals
Contact seals
Ring Material 52100 chrome steel
440C stainless steel
420C stainless steel
Seal Materiial Nitrile, Polyacrylic, Viton
Retainer Riveted steel
Crimped steel
Crowned steel
Crowned nylon
Precision Class ABEC-1, ABEC-3, ABEC-5, ABEC-7
Radial Clearance C2, C0, C3, C4, C5
Heat Stabilization S0, S1, S2, S3

Manufacturing Process
Granville, as a manufacturer of high-quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts.

From material coming, quality control through all processes except internal test, goods to third party inspection if required. After the center of inspection and experiment is founded, effective methods of inspecting all kinds of row materials are mastered and then the reliability of bearings is ensured. 

One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949.

Quality Control

Advantage Manufacturing Processes and Quality Control
01 Heat Treatment
02 Centerless Gringing Machine 11200(most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing,Seals Pressing
09 Measurement of Bearing Vibration(Acceleration)
10 Measurement of Bearing Vibration(speed)
11 Laser Marking
12 Automatic Packing

Packing & Shipping

Packing 1.Industrial exporting package
2.Individual plastic / carton / pallet
3.As the customer’s requirements
Delivery date 30-60 days for normal order

Company Profile

Granville group start in London and in order to adapt to the international market situation and enterprise development, Granville gradually oriented to global markets through resource integration, the Granville’s businesses are present across 5 continents. We operate in 4 industry clusters: Components for Industry and automotive; Machine tools and mechatronics; Energy and New Materials, and Healthcare.

Comprehensive product range:

— Bearings
— Oil seals, Transmission belt
— Chain and Sprocket
— Hub assembly & Wheel bearings
— Coupling, castings
— Linear motion

— Behavior-based, service-oriented, focused on results and committed to continuous improvement

— supply chain management and customer service

1. Advanced Automatic Lines
2. Comprehensive Range
3. Premium Quality
4. Sustainability


Shipping Cost:

Estimated freight per unit.

To be negotiated
Contact Angle: 0
Aligning: Non-Aligning Bearing
Separated: Unseparated
US$ 0/Piece
1 Piece(Min.Order)


Order Sample



Customized Request


Types of Ball Bearings

Modern ball bearing configurations have different materials and geometries to meet the demands of different working environments and applications. There are different types of ball bearings: single row deep groove, double-row deep groove, angular contact ball bearing, thrust, and self-aligning. Let us look at the differences between each type and learn why they are important for various purposes. Listed below are some of the most common types of ball bearings.

Miniature bearings

Although miniature ball bearings are a popular choice for small mechanical components, they are not without their challenges. They must be properly lubricated and stored in clean rooms. A strand of hair could ruin a miniature bearing. Fortunately, manufacturers offer lubrication services and a “Clean Room” for customers to store their miniature bearings safely. Read on to learn more about these small bearings and how they can help you.
The size of a miniature ball bearing can vary significantly, but most types of these devices are available in sizes ranging from.040 inch to one eighth of an inch. Whether you need a small ball bearing for a miniature car or a tiny instrument, a miniature bearing can save space while still offering high performance. Many of these bearings are shielded to prevent dirt from entering and leakage of lubricant. They can be flanged or unflanged, and some miniature ball bearings have extended inner rings that are designed for easy plate mounting.
Miniature ball bearings are commonly made from stainless steel or chrome steel. Both metals have their advantages. Stainless steel is the most popular material for ball bearings, which allows for a high load capacity while being quiet. Because stainless steel is relatively inexpensive, many small instrument bearings are made entirely of stainless steel. The difference in price is minimal, as the amount of steel is relatively small. Stainless steel miniature bearings are the smallest and lightest of all types of miniature ball bearings.

Self-aligning ball bearings

In the simplest terms, self-aligning ball bearings are ball bearings with flex shafts. If you’re looking for a ball bearing with a high degree of precision, you’ll want to choose one with a flex shaft, which means it can adjust to the proper orientation of the bearing’s flex shaft. Ball bearings with flex shafts are also recommended. But, what are these bearings?
Self-aligning ball bearings are made with two rows of balls and a common sphered raceway on the outer ring. As a result, they can accommodate small errors in shaft alignment and mounting. The CZPT brand is especially suitable for high-speed applications requiring greater running accuracy. The self-alignment mechanism is enabled by the fact that the balls are placed in two rows on either side of the sphered raceway in the outer ring. These two rows of balls also promote reduced friction and wear.
Another type of self-aligning ball bearings is a double-row design. They feature a common sphered raceway on the outer ring, a hollow spherical ring, and a cage that rotates relative to it. A self-aligning ball bearing is used in applications where shaft misalignment is a problem, such as conveying equipment. They are also used in simple woodworking machinery and ventilators.

Ceramic ball bearings

Ceramic ball bearings have several advantages over steel or metal bearings. These include increased acceleration capability, reduced friction, improved wear-resistance, and higher speeds. The United States holds the leading position in the global ceramic ball bearings market thanks to a rebounding motor vehicle production and healthy fixed investment environment. In the United States, there are three primary markets for ceramic ball bearings: healthcare, automotive, and aerospace. Here are the main benefits of ceramic ball bearings:
Hybrid ball bearings are also available. Hybrid bearings feature traditional metal rings and silicon nitride (ceramic) balls. Hybrid bearings offer important performance advantages over all-steel bearings, and they are more affordable. However, full ceramic ball bearings have all ceramic parts, and are best suited for machines that require high precision. These types of bearings also resist corrosion and wear.
Compared to steel ball bearings, ceramic balls are lighter than steel. They are also less dense, which means less friction and therefore less heat. Additionally, ceramic balls operate at higher speeds than steel balls, which increases their durability and longevity. But they are still not as strong as steel bearings. And because of their reduced density, they are much cheaper to manufacture. Therefore, they are an excellent choice for many applications. You can expect them to last much longer than steel bearings.

Steel carbon ball bearings

High precision G25 ball bearings are made of the highest grade chrome steel and hot forged from bar stock. Statistical process control and exacting atmospheres help ensure uniform hardness and microstructure. Moreover, these bearings are of the highest quality, with fine surface finish and a tight tolerance. This makes them the most widely used and reliable choice for industrial and automotive applications. However, there are some considerations that should be taken into account before acquiring a steel carbon ball bearing.
Generally, AFBMA grade 200 is the standard hardness specification for this material. AFBMA grade 100 can also be obtained with great difficulty. Despite the high hardness of steel carbon ball bearings, their outer surface is just a thin hardened shell, so a special micro hardness test is needed to evaluate them. In addition to the hardness, steel balls are easily machined and ground. Some manufacturers even offer stainless steel ball bearings and ball sets.
Another factor that makes steel carbon ball bearings so valuable is their precision. They can give precise measurements, which makes them ideal for low and medium-speed applications. Due to their high precision and durability, steel carbon ball bearings can be used in many applications, from conveyor machines to roller skates. However, you should be aware that the material used to produce these bearings is not suitable for applications in which they are exposed to water and gases. Further, they are also noisy and heavy, and must be installed properly in a manufacturing environment.

Stainless steel ball bearings

Stainless steel ball bearings are made from a high-quality type of stainless steel, 440C, which offers optimal corrosion and abrasion resistance. These bearings are also durable and rust-free, and are suitable for a variety of applications. Among others, stainless steel ball bearings are used in beverage and food processing plants, pharmaceuticals, pulp and paper mills, marine environments, and freezers.
Stainless steel bearings are available in various grades. For example, AISI 440C offers corrosion resistance, while the DD400 is specifically designed for marine applications. Both types of stainless steel are available in different forms, including open, shielded, and sealed. Stainless steel ball bearings can also be custom-made, as BL is known for producing customized bearings. There are also other materials that are available.
AISI type 316 stainless steel balls are ideal for marine applications and food processing. They have excellent resistance to most organic materials and are also used in medical devices and dispenser pumps. They are also strong enough to resist many petroleum products and are widely used in medical equipment and cosmetic applications. In addition, stainless steel balls can be plated to provide an additional layer of protection against chemicals. To understand how they differ, let’s take a look at some common types of stainless steel ball bearings.

Stainless steel

Stainless steel ball bearings can be used in various applications. Besides being corrosion resistant, they also last longer thanks to the Molded-Oil lubrication technology. Stainless steel ball bearings are clean units, which saves time and money in terms of maintenance, replacement, and downtime. But what are the advantages of stainless steel ball bearings? Let us discuss these benefits. Also, we’ll discuss their advantages and disadvantages.
Stainless steel ball bearings offer notable advantages, including corrosion resistance, increased strength, and improved stability under high temperatures. These qualities make them the ideal choice for special circumstances and demanding environments. However, you should be careful when choosing stainless steel bearings. There are several different types of stainless steel. Here’s a brief look at what makes them the best choice. And remember: Stainless steels are also recyclable. In fact, they can be recycled indefinitely.
They’re made from chrome alloy electric furnace steel, which is hardened for optimum service life and strength. They have the highest surface finish and dimensional accuracy. Advanced heat-treating processes increase their strength and anti-cracking abilities. And thanks to their unique materials, they’re corrosion-resistant. As a result, they’re more durable than other types of bearings. And since they’re made with a high-quality steel, you’ll save money in the long run.

Plastic ball bearings

Plastic ball bearings were developed to meet the specific needs of applications where standard steel bearings would fail. Steel and 440C stainless steel are both susceptible to rusting when exposed to water, making them poor choices for applications involving food processing, swimming pools, and medical equipment. In addition to this, the plastic material is able to dampen vibrations and make the bearing virtually silent. Here’s what makes plastic ball bearings so great for these applications.
Plastic ball bearings are lightweight, corrosion-resistant, and offer a long service life. In addition to their low price, they can be easily cleaned and are incredibly durable. Motion plastics specialist igus has recently expanded its range of xiros polymer grooved ball bearings. These bearings are also FDA-compliant, lubricant-free, electrically insulating, and resistant to both temperature and media.
Plastic bearings are often mounted into other components like wheels, pulleys, and housings. In this way, the inner ring is essentially a profile of the pulley’s profile, and the outer ring is a shaft or fixing clip. The result is seamless integration of the bearing and the surrounding parts, which reduces the overall assembly time and costs. You can also use multiple plastic ball bearings in one application for more options.

China Hot selling 606 ZZ/2RS Miniature Deep Groove Ball Bearing Wheel Bearing Angular/Cylindrical/Tapered/Slewing Bearing for Bicycle Parts   carrier bearingChina Hot selling 606 ZZ/2RS Miniature Deep Groove Ball Bearing Wheel Bearing Angular/Cylindrical/Tapered/Slewing Bearing for Bicycle Parts   carrier bearing
editor by CX


Slewing bearings

As one of the slewing bearings manufacturers, suppliers, and exporters of mechanical products, We offer slewing bearings and many other products.

Please get in touch with us for details.

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