Open Deep Groove Ball Bearings Manufacturer
High-speed, low-friction open type deep groove ball bearings for motors, gearboxes, pumps, fans, conveyors and OEM industrial equipment.
Harron Bearing manufactures open deep groove ball bearings with precise raceway geometry, stable radial clearance, low vibration performance and flexible lubrication options for high-speed industrial applications.
- Open structure for external lubrication
- Low friction torque and high-speed running
- OEM sizes, clearance, cage and material options
Quick Engineering Overview
Bearing Type
Open type single row deep groove ball bearing
Main Structure
Inner ring, outer ring, steel balls and cage, without seals or shields
Load Direction
Radial load + limited axial load in both directions
Key Advantage
Lower friction and easier oil/grease circulation compared with sealed types
Typical Use
Clean or enclosed systems with external lubrication, such as gearboxes, motors, and internal machinery components.
Factory Production Process for Open Deep Groove Ball Bearings
From raw material inspection to final noise and dimensional testing, Harron Bearing controls each production step to keep open deep groove ball bearings stable, smooth and suitable for high-speed industrial use.
Bearing steel inspection
Turning and heat treatment
Precision grinding
Raceway superfinishing
Ball and cage assembly
Cleaning and lubrication
Noise & dimensional inspection
Anti-rust packaging
What Are Open Deep Groove Ball Bearings?
Open deep groove ball bearings are deep groove ball bearings without rubber seals or metal shields on either side. The open design allows oil or grease to circulate more freely, making them suitable for clean, enclosed or externally lubricated systems.
Equipment designers select them when industrial applications demand low friction, high speed capability, easy relubrication access, and cost-effective rolling contact performance.
Open vs Shielded vs Sealed Deep Groove Ball Bearings
Understanding the structural constraints and lubrication scenarios to select the right bearing type for your equipment.
Open Type
- Structure: No seals or shields
- Friction: Lowest
- Speed: Highest capability
- Lubrication: External oil/grease needed
- Protection: None against dust/water
- Best Applications: Clean or enclosed systems with oil bath or continuous grease circulation (e.g., internal gearboxes).
ZZ Shielded Type
- Structure: Metal shields on both sides
- Friction: Low (non-contact)
- Speed: High capability
- Lubrication: Pre-lubricated with grease
- Protection: Good against large particles
- Best Applications: General machinery where moderate dust protection is needed without sacrificing high speed limits.
2RS Sealed Type
- Structure: Rubber seals on both sides
- Friction: Higher (contact type)
- Speed: Limited by seal friction/heat
- Lubrication: Pre-lubricated with grease
- Protection: Excellent against dust & moisture
- Best Applications: Exposed environments, agricultural equipment, or washing machines where contamination risk is high.
Engineering Tip: Choose open deep groove ball bearings when the application has a clean working environment, external lubrication system, high-speed requirement or enclosed housing protection.
Available Open Deep Groove Ball Bearing Series
From lightweight 6000 series to robust 6400 series, manufactured to precise dimensions for OEM integration.
6000 Series
Light to medium load open bearings designed for compact structures. Ideal for applications where space optimization is essential without compromising performance.
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Space-efficient design for limited shaft space constraints
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Provides stable and reliable radial support
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Perfectly suited for small motors, compact gearboxes, and pumps
6200 Series
A balanced series delivering an optimal mix of performance and reliability. Recognized as the industry standard for versatile applications.
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Excellent radial load capacity combined with high speed capability
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Wide availability supported by universal standard dimensions
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The most commonly selected open bearing for industrial equipment and electric motors
6300 Series
Medium to heavy-duty open deep groove ball bearings. Engineered specifically to tackle high-stress environments and heavy operational loads.
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Features significantly larger steel balls and thicker rings compared to the 6200 series
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Built for applications requiring exceptionally stronger load support
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Ensures stable and continuous running under the most demanding conditions
6800 / 6900 Thin Section
Specialized thin section open bearings engineered for highly compact, weight-sensitive modern designs.
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Ultra-thin profile saves critical space in tight constraints
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Significantly reduces overall equipment weight
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Maintains uncompromised rotational smoothness and precision
Custom Open Deep Groove Ball Bearings
Tailored engineering solutions designed specifically for when standard series cannot meet your unique project constraints.
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Material options including high-durability stainless steel
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Advanced precision grades (P5/P4) and custom clearances (C3/C4)
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Customizable cage types (brass/nylon), noise level optimization, and private label packaging
Technical Parameters of Open Deep Groove Ball Bearings
| Bearing Type | Open deep groove ball bearing |
|---|---|
| Structure | Single row, open type (no seals/shields) |
| Series | 6000, 6200, 6300, 6400, 6800, 6900, 16000 and custom series |
| Material | GCr15 / AISI 52100 bearing steel, stainless steel optional |
| Cage | Pressed steel cage (standard), brass cage, nylon cage optional |
| Precision Grade | P0 (Standard), P6, P5, P4, P2 |
| Clearance | C0 (Normal), C2, C3, C4 |
| Lubrication | Requires external oil, grease or customer-specified lubrication |
| Application | Motors, gearboxes, pumps, fans, conveyors, machinery and OEM equipment |
* Final specifications should be confirmed according to working speed, load, temperature, lubrication method and application environment.
- d = Bore Diameter
- D = Outside Diameter
- B = Width
- r = Chamfer
- Cr = Dynamic Load Rating
- Cor= Static Load Rating
Popular Open Deep Groove Ball Bearing Models
Select a model to request a specific B2B factory quote.
| Model | Series | Bore d (mm) | Outside D (mm) | Width B (mm) | Structure | Action |
|---|---|---|---|---|---|---|
| 6004 | 6000 Series | 20 | 42 | 12 | Open | |
| 6205 | 6200 Series | 25 | 52 | 15 | Open | |
| 6306 | 6300 Series | 30 | 72 | 19 | Open | |
| 6405 | 6400 Series | 25 | 80 | 21 | Open | |
| 6804 | 6800 Series | 20 | 32 | 7 | Open |
Common Problems When Sourcing Open Deep Groove Ball Bearings
1. Unstable Bearing Noise
Poor raceway finishing, inconsistent ball quality or incorrect clearance control can cause abnormal vibration and noise in high-speed motors.
2. Wrong Clearance Selection
Improper C0/C3/C4 selection for gearbox or pump use may cause overheating, shaft looseness or premature failure under operating temperatures.
3. Insufficient Lubrication
Open bearings need strict correct oil or grease supply planning from the equipment side, because they do not have built-in seals to retain lubricant.
4. Contamination Risks
Open type bearings are not suitable for dusty or wet environments. Sourcing them without checking housing protection leads to rapid wear.
5. Inconsistent Batch Quality
Unstable steel hardness, roundness errors or grinding accuracy variations between batches can create inconsistent service life for OEM assemblies.
6. Engineering Support
B2B buyers often face delays when suppliers cannot help with equivalent model replacement, CAD drawings, or material application selection.
Why Choose Harron Bearing for Open Deep Groove Ball Bearings?
Factory Direct Manufacturing
Harron Bearing has manufactured precision bearings since 2000 with stable production capacity for OEM and industrial buyers.
Factory Direct
High-Speed & Low-Friction
Raceway grinding, ball quality and clearance control help open deep groove ball bearings run smoothly in high-speed systems.
Low Friction
Flexible OEM / ODM Options
We support custom size, clearance, cage, material, lubrication, marking and packaging requirements.
OEM / ODM
Strict Quality Inspection
Each batch can be checked for dimensions, noise, vibration, hardness, clearance and appearance before shipment.
QC Controlled
Export-Ready Packaging
Anti-rust oil, plastic tube, individual box, carton, pallet and private label packaging can be arranged for global supply.
Export Packaging
Engineering Support
Our team helps customers choose suitable open, shielded or sealed bearing solutions based on load, speed, environment and lubrication.
Selection SupportApplications of Open Deep Groove Ball Bearings
Electric Motors
Open bearings can be used in clean motor systems where low friction and high-speed rotation are required.
Gearboxes
Suitable for enclosed gearboxes with oil bath or continuous lubrication systems.
Pumps
Used in pump systems where stable rotation and proper lubrication are available.
Fans & Blowers
Open deep groove ball bearings support smooth rotation in high-speed fan and blower assemblies.
How to Choose the Right Open Deep Groove Ball Bearing
Confirm dimensions
Check bore diameter d, outside diameter D and width B.
Check load condition
Confirm radial load, axial load and combined load direction.
Check environment
Use open type in clean, enclosed or externally lubricated systems. If dusty, consider ZZ/2RS.
Select clearance
C0 is common. C3 or C4 may be needed for high-speed or high-temperature.
Quality Control for Stable Open Bearing Performance
For open deep groove ball bearings, raceway accuracy, clearance stability, cage quality and surface finishing directly affect noise, heat generation, speed capability and bearing life. Harron Bearing controls key inspection points before shipment.
Custom Open Deep Groove Ball Bearing Solutions
When standard models don't fit your constraints, Harron Bearing provides OEM and custom manufacturing based on your specific application requirements.
Export Packaging for Open Deep Groove Ball Bearings
Open bearings require clean handling and reliable anti-rust packaging. Harron Bearing supports standard industrial packaging, neutral packaging and customized brand packaging for global supply.
