China best Gearbox Roller Skate Skateboard Windows Sliding Sliding Gate Roller Trailer Axle OEM ODM 6*19*6 626 Deep Groove Ball Bearings with Great quality

Product Description

Product Parameters


Product Name Deep Groove Ball Bearings
Brand Name NMN
Material Chrome Steel  GCr15  Stainless Steel  Ceramic  Nylon
Cage Steel  Brass  Nylon
Weight(Kg) 0.0081
Bearing Clearance C0 C2 C3 C4 C5
Seals Type Z 2Z 2RS Znr 2RS1 2rsh 2rsl 2rz 2znr
Precision Grade P0  P6  P5  P4  P2
Vibration V1 V2 V3 V4
Quality ABEC1, 3, 5, 7,9
Load Rating(kN) Cr 39.7
Cor 31
Limiting Speed Grease 4600
Oil 5800
Serice OEM
Sample Available
Port HangZhou/ZheJiang

Product Details

Single row deep groove ball bearings are used in a wide variety of applications, they are simple in design, non-separable, suitable for high speeds and are robust in operation, and need little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads.

As a hot product of our shop, 626 bearing has the advantages of low noise, low friction and high speed, and is equipped with sealing cover, grease, etc., to extend the life of the product.
We provide OEM, ODM and other services, and provide you with relevant consulting information to help you with bearing selection, clearance configuration, product life and reliability analysis. We offer localized shipping solutions to save your shipping costs.
We can provide free samples, can accept custom LOGO or drawings, can design packaging according to requirements.

Bearing Models

Number Specifiction Load Rating (KN) Limiting Speed (r/min) Weight(Kg/pc)
d(mm) D(mm) B(mm) r(mm) Cr Cor Grease Oil
604 4 12 4 0.2 0.9 0.36 43000 51000 0.002
605 5 14 5 0.2 1.33 0.505 39000 46000 0.0035
606 6 17 6 0.3 2.19 0.865 30000 38000 0.006
607 7 19 6 0.3 2.24 0.91 28000 3600 0.008
608 8 22 7 0.3 3.35 1.4 26000 34000 0.012
609 9 24 7 0.3 3.4 1.45 22000 30000 0.014
6000 10 26 8 0.3 4.55 1.96 20000 28000 0.019
6001 1 28 8 0.3 5.1 2.39 19000 26000 0.571
6002 15 32 9 0.3 5.6 2.84 18000 24000 0.03
6003 17 35 10 0.3 6.8 3.35 17000 22000 0.039
6004 20 42 12 0.6 9. 5.05 1000 19000 0.069
6005 25 47 12 0.6 10.1 5.85 13000 17000 0.08
6006 30 55 13 1.0 13.2 8.3 12000 15000 0.116
6007 35 62 14 1.0 16 10.3 10000 13000 0.155
6008 40 8 15 1.0 16.8 11.5 8000 11000 0.185
6009 45 5 16 1.0 21 15.1 7200 9000 0.231
6571 50 80 16 1.0 21.8 16.6 6400 7800 0.25
6011 55 90 18 1.1 28.3 21.2 5700 7000 0.362
6012 60 95 18 1.1 29.5 23.2 5000 6300 0.385
6013 65 100 18 1.1 31.9 25 4800 6100 0.44
6014 70 110 20 1.1 39.7 31 4600 5800 0.6
6015 75 115 20 1.1 41.6 33.5 4400 5600 0.64
6016 80 125 22 1.1 47.5 40 4300 5500 0.854
6017 85 130 22 1.1 49.5 43 200 5300 0.89
6018 90 140 24 1.5 58 49.5 4000 5100 1.02
624 4 13 5 0.2 1.31 0.49 36000 45000 0.0032
625 5 16 5 0.3 1.76 0.68 32000 40000 0.0048
626 6 19 6 0.3 2.34 0.885 28000 36000 0.0081
627 7 22 7 0.3 3.35 1.40 26000 34000 0.013
628 8 24 8 0.3 4.00 1.59 24000 32000 0.017
629 9 26 8 0.3 4.55 1.96 22000 40000 0.0048


Packaging & Shipping


·Plastic rolling packing + Plastic bag + Paper carton
·Single Box + Plastic rolling packing + Plastic bag + Paper carton+pallet
·According to customer requirement


About Us

ZheJiang CZPT Bearing Group is a professional bearing manufacturer and exporter in China. We have been engaged in bearing industry for 20 years. Our company is specialized in producing Deep Groove Ball Bearings, Tapered Roller Bearings, Spherical Roller Bearings and Special Bearings in accordance with Customers’ designs.Our bearings has been widely applied into agricultural equipments, home appliances, power equipments, machine tools, automotives and engineering machinery, etc.

Our production is strictly executed with ISO9001 and ISO14001. Our products are mainly exported to Singapore, South Kora, Vietnam, Thailand, Turkey, Pakistan, Australia, Polan, France, UK, South America, USA, South Africa and other countries and regions of the world, with great public praise of high quality and reasonable price.

Company Profile


1.Q:Could you supply free sample of bearing for our test?
A:Yes. Please afford the express fee and we will send you the sample within your first order.

2.Q:Sample time?
A:Within 3-4 days.

3.Q:Are you a factory or a Trade Company for Bearing ?
A:We are the factory.

4.Q:Whether you could make your products by our color?
A:Yes, The color of products can be customized if you can meet our MOQ.

5.Q:Could you accept OEM and customize?
A:Yes, OEM and ODM are accepted and we can customize for you according to sample or drawing.

6.Q:Do you have stocks?
A:Yes, most of the bearings showing on alibaba are in stock,especialy big bearings.



We sincerely hope we can build a long term relationship with all the clients and we also have great confidence in cooperating with every potential customer by most premium service and competitive price.

Welcome your inquiry and welcome your visit. 

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Contact Angle: Nmn
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
US$ 0.04/Set
1 Set(Min.Order)

Request Sample



Customized Request

sliding bearing

Differences Between Plain Sliding Bearings and Self-Lubricating Bearings

Plain sliding bearings and self-lubricating bearings are two distinct types of bearings used in various applications. Here are the key differences between them:

Plain Sliding Bearings:

  • Plain sliding bearings, also known as bushings, are simple bearing components that consist of a cylindrical sleeve made of a bearing material.
  • These bearings require external lubrication, such as grease or oil, to reduce friction and wear between the bearing and the shaft.
  • Regular maintenance and lubrication are essential to ensure proper operation and longevity.
  • Plain sliding bearings are cost-effective and suitable for applications where lubrication can be easily provided.
  • They are commonly used in low-speed and low-load applications, where the shaft slides within the bearing.

Self-Lubricating Bearings:

  • Self-lubricating bearings, also known as maintenance-free bearings, are designed to operate without the need for external lubrication.
  • These bearings incorporate solid lubricants, such as graphite, PTFE (polytetrafluoroethylene), or other additives, directly into the bearing material.
  • The solid lubricants are released gradually as the bearing operates, reducing friction and providing a consistent lubricating film.
  • Self-lubricating bearings are ideal for applications where frequent maintenance or lubrication is impractical or not feasible.
  • They are suitable for both low-load and high-load applications, as the self-lubricating properties help extend the bearing’s service life.

In summary, plain sliding bearings require external lubrication and are suitable for applications where lubrication can be provided, while self-lubricating bearings incorporate solid lubricants and operate without the need for regular maintenance. The choice between these two types depends on factors such as the application’s operating conditions, maintenance requirements, and budget considerations.

sliding bearing

Contribution of Sliding Bearings to Hydraulic Systems and Pumps

Sliding bearings play a crucial role in ensuring the smooth and efficient operation of hydraulic systems and pumps. Here’s how they contribute to these applications:

Load Distribution: Sliding bearings distribute the axial and radial loads generated by hydraulic components, such as pistons and impellers, across their surfaces. This helps prevent localized stress and ensures uniform load distribution, enhancing the overall stability of the system.

Reduced Friction: Sliding bearings minimize friction between moving parts within hydraulic systems and pumps. This friction reduction leads to lower energy consumption and less heat generation, contributing to improved efficiency and reduced wear and tear.

Fluid Film Formation: Properly lubricated sliding bearings create a fluid film between their surfaces. This fluid film serves as a barrier that prevents direct contact between the bearing surfaces, reducing friction and wear and enabling smooth movement even at high speeds.

Sealing Function: Sliding bearings often incorporate seals to prevent the ingress of contaminants, such as dirt and moisture, into the hydraulic system or pump. This sealing function helps maintain the integrity of the system’s components and extends their lifespan.

Alignment Compensation: In hydraulic systems, sliding bearings can compensate for minor misalignments between components, such as shafts and impellers. This ability to accommodate misalignment contributes to reduced stress and longer component life.

Quiet Operation: Sliding bearings help dampen vibrations and noise generated during the operation of hydraulic systems and pumps. This contributes to quieter and more comfortable working environments.

Customization: Sliding bearings can be designed and customized to meet the specific requirements of different hydraulic systems and pumps. This adaptability ensures optimal performance and longevity.

Overall, sliding bearings enhance the reliability, efficiency, and longevity of hydraulic systems and pumps by minimizing friction, distributing loads, facilitating smooth movement, and providing protection against contaminants. Their contribution is essential to achieving consistent and precise fluid transfer and power generation in various industrial applications.

sliding bearing

Impact of Proper Lubrication on Sliding Bearings

Proper lubrication plays a critical role in the performance and longevity of sliding bearings. Here’s how it affects their operation:

  • Reduced Friction and Wear: Lubrication forms a thin film between the sliding surfaces of the bearing, reducing direct metal-to-metal contact. This minimizes friction and wear, which can significantly extend the bearing’s lifespan.
  • Heat Dissipation: Lubricants help dissipate heat generated during operation by carrying away excess heat from the friction zones. This prevents overheating and potential damage to the bearing and surrounding components.
  • Corrosion Prevention: Lubricants provide a protective barrier against moisture and corrosive substances, preventing the formation of rust and corrosion on the bearing surfaces.
  • Sealing Effect: Proper lubrication can help create a sealing effect that prevents contaminants from entering the bearing, maintaining a clean and efficient operating environment.
  • Noise and Vibration Reduction: Adequate lubrication helps dampen noise and reduce vibration caused by friction between bearing surfaces. This contributes to quieter and smoother operation.
  • Enhanced Load Distribution: Lubrication ensures even load distribution across the bearing surfaces, preventing localized wear and extending the bearing’s overall life.
  • Stability and Performance: Proper lubrication maintains consistent performance and stability by minimizing variations in friction and reducing the risk of sudden failures.
  • Seizure Prevention: Lubricants prevent sliding surfaces from seizing or sticking together, even during periods of prolonged inactivity.
  • Optimized Efficiency: Well-lubricated bearings experience less energy loss due to friction, resulting in improved overall efficiency of the machinery.

Choosing the right lubricant type, viscosity, and lubrication interval is crucial to ensuring the optimal performance and durability of sliding bearings. Regular maintenance and monitoring of lubrication levels are essential to prevent issues and extend the bearing’s service life.

China best Gearbox Roller Skate Skateboard Windows Sliding Sliding Gate Roller Trailer Axle OEM ODM 6*19*6 626 Deep Groove Ball Bearings   with Great qualityChina best Gearbox Roller Skate Skateboard Windows Sliding Sliding Gate Roller Trailer Axle OEM ODM 6*19*6 626 Deep Groove Ball Bearings   with Great quality
editor by CX 2024-05-15

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