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Professional precision ball bearing manufacturer Professional precision ball bearing manufacturer

Flanged Ball Bearings

Flanged ball bearings feature an integrated flange on the outer ring to provide accurate axial positioning and stable mounting in compact assemblies. This design prevents axial movement, simplifies installation, and improves overall assembly efficiency.
Lumi manufactures flanged ball bearings in chrome steel and stainless steel materials, offering smooth operation, low noise, and reliable performance for precision and space-constrained applications.
With optimized raceway design and controlled manufacturing processes, Lumi flanged ball bearings deliver stable radial load support, high rotational accuracy, and long service life across a wide range of industrial uses.
Lumi also provides OEM / ODM customization, including flange dimensions, material selection, sealing options (open, ZZ, 2RS), and lubrication solutions to meet specific installation and application requirements.

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Flanged Ball Bearings

Flanged Ball Bearings: Performance & Advantages

The integrated flange provides accurate axial positioning, reducing axial movement during installation and operation.

Accurate Axial Positioning

Flanged designs reduce the need for additional locating components, enabling faster assembly and simpler housing construction.

Simplified Installation

By providing inherent axial support, flanged ball bearings improve mounting stability and maintain consistent positioning under load.

Stable Installation

Flanged ball bearings are designed to support radial loads while accommodating limited axial loads in typical applications.

Reliable Load Support

Optimized raceway geometry and controlled internal clearance ensure smooth rotation and low-noise operation.

Low Noise Operation

Flanged Ball Bearings: Structure

Inner Ring: The inner ring is precision-machined from stainless steel, featuring a smooth and accurately ground raceway. It ensures stable rotation and supports radial loads with consistent performance under corrosive or humid conditions.
Outer Ring: The outer ring is manufactured from corrosion-resistant stainless steel with a deep groove raceway design. It provides reliable support for radial loads and limited axial loads in both directions.
Balls: High-quality stainless steel balls are precisely matched to the raceways, ensuring uniform load distribution, reduced friction, and smooth operation across a wide speed range.
Cage: The cage accurately guides and separates the balls, maintaining consistent spacing and reducing friction and heat generation. This contributes to stable performance and extended service life.
Seals / Shields: Optional seals or shields protect the bearing from contaminants such as dust, moisture, and particles, further enhancing durability and reliability in demanding environments.

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Flanged Ball Bearings: Design & Mounting Configurations

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Flanged Design:

Flanged miniature ball bearings feature an integrated flange on the outer ring, providing accurate axial positioning and preventing axial movement during installation and operation. This design simplifies housing construction and reduces the need for additional positioning components, making it ideal for space-limited and precision-aligned applications.

Key Benefits:

• Accurate axial location within the housing
• Simplified installation and improved assembly efficiency
• Enhanced stability in compact structures
• Available in chrome steel and stainless steel materials

Non-Flanged Design:

Non-flanged miniature ball bearings use a standard cylindrical outer ring design, offering greater flexibility for applications where axial positioning is achieved through external components. This configuration is suitable for a wide range of housings and provides reliable performance in standard mounting arrangements.

Key Benefits:

• Flexible mounting with external axial positioning
• Compatible with a wide range of housing designs
• Suitable for standard assembly and alignment methods
• Available in chrome steel and stainless steel materials

Flanged Design:

Flanged miniature ball bearings feature an integrated flange on the outer ring, providing accurate axial positioning and preventing axial movement during installation and operation. This design simplifies housing construction and reduces the need for additional positioning components, making it ideal for space-limited and precision-aligned applications.

Key Benefits:

• Accurate axial location within the housing
• Simplified installation and improved assembly efficiency
• Enhanced stability in compact structures
• Available in chrome steel and stainless steel materials

Non-Flanged Design:

Non-flanged miniature ball bearings use a standard cylindrical outer ring design, offering greater flexibility for applications where axial positioning is achieved through external components. This configuration is suitable for a wide range of housings and provides reliable performance in standard mounting arrangements.

Key Benefits:

• Flexible mounting with external axial positioning
• Compatible with a wide range of housing designs
• Suitable for standard assembly and alignment methods
• Available in chrome steel and stainless steel materials

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Flanged Ball Bearings: Types & Configurations

Open Type (Open Flanged Ball Bearing)

Open flanged ball bearings feature an unsealed design, delivering the lowest friction and maximum speed in clean operating environments.

Typical Applications:

• High-speed mechanisms
• Clean environments
• External lubrication

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Shielded Type (ZZ, With Retaining Flange)

Shielded flanged ball bearings use metal shields to reduce dust ingress while maintaining stable speed and low
friction.

Typical Applications:

• Industrial equipment
• Automation systems
• Light contamination

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Non-Contact Sealed Type (2RZ, With Retaining Flange)

Non-contact sealed flanged ball bearings improve dust protection with minimal impact on rotational speed and efficiency.

Typical Applications:

• Electric motors
• Precision drives
• Medium-speed systems

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Contact Sealed Type (2RS, With Retaining Flange)

Contact sealed flanged ball bearings provide enhanced sealing against dust and moisture for reliable, maintenance-free operation.

Typical Applications:

• Dusty environments
• Humid conditions
• Enclosed equipment

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Open Type (Open Flanged Ball Bearing)

Open flanged ball bearings feature an unsealed design, delivering the lowest friction and maximum speed in clean operating environments.

Typical Applications:

• High-speed mechanisms
• Clean environments
• External lubrication

Request a quote

Shielded Type (ZZ, With Retaining Flange)

Shielded flanged ball bearings use metal shields to reduce dust ingress while maintaining stable speed and low
friction.

Typical Applications:

• Industrial equipment
• Automation systems
• Light contamination

Request a quote

Non-Contact Sealed Type (2RZ, With Retaining Flange)

Non-contact sealed flanged ball bearings improve dust protection with minimal impact on rotational speed and efficiency.

Typical Applications:

• Electric motors
• Precision drives
• Medium-speed systems

Request a quote

Contact Sealed Type (2RS, With Retaining Flange)

Contact sealed flanged ball bearings provide enhanced sealing against dust and moisture for reliable, maintenance-free operation.

Typical Applications:

• Dusty environments
• Humid conditions
• Enclosed equipment

Request a quote

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Flanged Ball Bearings: Material Options

Chrome Steel (GCr15 / AISI 52100)

Chrome steel flanged ball bearings offer high hardness, excellent load-carrying capacity, and stable running performance. They are widely used in general industrial applications where precise axial positioning, high rotational accuracy, and cost-effective solutions are required.

AISI 440C/ 420 / 304 / 316

Stainless steel flanged ball bearings provide enhanced corrosion resistance for humid, corrosive, or hygienic environments. Different stainless steel grades are available to balance mechanical strength, corrosion protection, and application-specific requirements.

Chrome Steel (GCr15 / AISI 52100)

Chrome steel flanged ball bearings offer high hardness, excellent load-carrying capacity, and stable running performance. They are widely used in general industrial applications where precise axial positioning, high rotational accuracy, and cost-effective solutions are required.

AISI 440C/ 420 / 304 / 316

Stainless steel flanged ball bearings provide enhanced corrosion resistance for humid, corrosive, or hygienic environments. Different stainless steel grades are available to balance mechanical strength, corrosion protection, and application-specific requirements.

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Flanged Ball Bearings: Application

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Automotive

Drone/UVA

Fitness Equipment

Robotics

Gearboxes

Food Machinery

Agricultural Machinery

Home Appliances

Flanged Ball Bearings: Customization & OEM/ODM

• Flange geometry & dimensions: Flange outside diameter, thickness, and positioning tolerances can be customized to ensure accurate axial positioning and perfect compatibility with your housing design.
• Installation fit & axial positioning: Mounting fits and axial locating structures can be adjusted to simplify assembly, improve installation consistency, and enhance overall stability.
• Material selection: Available in chrome steel (GCr15 / AISI 52100) and stainless steel materials including 420 / 440C / 304 / 316, selected based on load conditions, corrosion resistance, and operating environment.
• Internal clearance & precision grade: Internal clearance options (C0 / C2 / C3 / C4) and precision grades (ABEC-1 / 3 / 5 / 7 or ISO equivalents) can be optimized for smooth rotation and reliable performance.

• Sealing configurations: Multiple sealing solutions are available, including open type, metal shields (ZZ), non-contact seals (2RZ), and contact seals (2RS), balancing protection and rotational efficiency.
• Lubrication solutions: Lubrication can be selected based on speed, load, temperature, and environmental conditions, including standard grease, low-noise grease, high-speed grease, oil lubrication, or special-purpose lubricants.
From prototype development and sample validation to stable mass production, our engineering team works closely with customers to ensure consistent quality, reliable performance, and long-term supply stability.

• Flange geometry & dimensions: Flange outside diameter, thickness, and positioning tolerances can be customized to ensure accurate axial positioning and perfect compatibility with your housing design.
• Installation fit & axial positioning: Mounting fits and axial locating structures can be adjusted to simplify assembly, improve installation consistency, and enhance overall stability.
• Material selection: Available in chrome steel (GCr15 / AISI 52100) and stainless steel materials including 420 / 440C / 304 / 316, selected based on load conditions, corrosion resistance, and operating environment.
• Internal clearance & precision grade: Internal clearance options (C0 / C2 / C3 / C4) and precision grades (ABEC-1 / 3 / 5 / 7 or ISO equivalents) can be optimized for smooth rotation and reliable performance.

• Sealing configurations: Multiple sealing solutions are available, including open type, metal shields (ZZ), non-contact seals (2RZ), and contact seals (2RS), balancing protection and rotational efficiency.
• Lubrication solutions: Lubrication can be selected based on speed, load, temperature, and environmental conditions, including standard grease, low-noise grease, high-speed grease, oil lubrication, or special-purpose lubricants.
From prototype development and sample validation to stable mass production, our engineering team works closely with customers to ensure consistent quality, reliable performance, and long-term supply stability.

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