Quick Specifications
Item | Specification |
|---|
Product Name | Heavy Duty Flanged Bearing Unit |
Product Type | Hub Bearing Assembly |
Housing Material | Cast Iron, Ductile Iron, Cast Steel (Optional) |
Bearing Type | Deep Groove Ball Bearing / Insert Bearing |
Housing Style | 2-Bolt / 4-Bolt Flange |
Bore Size | Customized |
Seal Type | Double Lip Seal / Triple Lip Seal |
Lubrication | Pre-greased or Re-lubrication Available |
Surface Finish | Painting, Powder Coating, Anti-rust Oil |
OEM Service | Available |
Manufacturing | Casting + CNC Machining + Assembly |
Applications | Mining, Conveyors, Agricultural Machinery, Industrial Equipment |
What Is a Flanged Bearing Unit?
A flanged bearing unit is a complete bearing assembly consisting of a rolling bearing, a precision-machined housing, seals, and lubrication components. It is designed to support rotating shafts while providing accurate alignment, smooth rotation, and reliable load transmission.
Unlike standard bearings, a flanged bearing unit can be directly mounted onto machine frames or equipment using two-bolt or four-bolt flange configurations, simplifying installation and maintenance.
Heavy-duty flanged bearing units are commonly used in industrial equipment operating under high radial loads, moderate axial loads, vibration, and continuous service conditions.
What Is a Hub Bearing Assembly?
A hub bearing assembly integrates the bearing, housing, seals, and mounting structure into a single pre-engineered unit. This design improves installation efficiency, reduces alignment errors, and minimizes maintenance requirements.
Compared with separately assembled bearings and housings, hub bearing assemblies offer:
Faster installation
Higher assembly accuracy
Improved sealing performance
Better contamination resistance
Longer bearing service life
Lower maintenance costs
Advantages of Heavy Duty Flanged Bearing Units
Heavy-duty bearing units provide superior reliability for demanding industrial applications.
Key Benefits
High load carrying capacity
Excellent shaft support
Reduced vibration and noise
Easy installation
Replaceable bearing insert
Excellent sealing against dust and moisture
Low maintenance requirements
Long operating life
Suitable for continuous operation
Available in customized configurations
The integrated design improves operational stability while reducing machine downtime.
Manufacturing Process
MetalKeen manufactures flanged bearing units through a complete production process combining casting, precision machining, and professional assembly.
Engineering Design
↓
Raw Material Inspection
↓
Casting or Forging
↓
Heat Treatment (Optional)
↓
Shot Blasting
↓
Precision CNC Machining
↓
Bearing Seat Machining
↓
Assembly
↓
Lubrication
↓
Seal Installation
↓
Performance Testing
↓
Final Inspection
↓
Packaging
Each production stage is carefully controlled to ensure dimensional accuracy and long-term operational reliability.
Technical Specifications
Typical manufacturing capabilities include:
Housing Material: HT250, HT300, QT450, Cast Steel
Bore Size: Customized
Bearing Type: Ball Bearing / Roller Bearing
Housing Type: Round, Square, Oval
Mounting Style: 2-Bolt / 4-Bolt Flange
Lubrication: Grease Fitting Available
Shaft Locking: Set Screw / Eccentric Collar / Adapter Sleeve
CNC Machining Accuracy: According to Drawing
OEM Manufacturing: Supported
Available Materials
Material selection depends on the application environment and load requirements.
Available materials include:
HT250 Grey Cast Iron
HT300 Grey Cast Iron
QT450 Ductile Iron
Carbon Steel
Cast Steel
Stainless Steel 304
Stainless Steel 316
Each material provides different levels of strength, corrosion resistance, vibration damping, and wear performance.
Surface Finish Options
To improve corrosion resistance and appearance, several finishing options are available.
Available surface treatments include:
Surface treatment is selected according to operating conditions and environmental exposure.
Typical Applications
Heavy-duty flanged bearing units are widely used in industrial power transmission systems.
Applications include:
Flanged Bearing Unit vs Pillow Block Bearing
Flanged Bearing Unit | Pillow Block Bearing |
Wall or vertical mounting | Horizontal base mounting |
Compact installation | Larger installation footprint |
Suitable for confined spaces | Better for shaft support on machine beds |
Easy replacement | Easy maintenance |
Heavy radial loads | Heavy radial loads |
Widely used in conveyors and machinery | Common in production equipment |
Selecting the appropriate bearing housing depends on installation direction, available mounting space, shaft arrangement, and load conditions. Heavy-duty flanged units are widely used where compact mounting and reliable shaft support are required.
Quality Inspection
Every bearing unit is inspected before shipment.
Inspection includes:
Material Certification
Chemical Composition Analysis
Dimensional Inspection
CMM Measurement
Bearing Seat Accuracy
Shaft Alignment Inspection
Assembly Inspection
Grease Filling Verification
Surface Quality Inspection
Packaging Inspection
Inspection reports are available upon request.
Frequently Asked Questions
What is a flanged bearing unit?
A flanged bearing unit is a pre-assembled bearing and housing system that supports rotating shafts and allows easy installation using flange mounting.
What is the difference between a flanged bearing and a pillow block bearing?
A flanged bearing mounts to a vertical surface or machine frame using a flange, while a pillow block bearing mounts on a horizontal base.
Can the bearing insert be replaced?
Yes. Most heavy-duty flanged bearing units are designed with replaceable bearing inserts, reducing maintenance costs.
Which materials are available?
Grey cast iron, ductile iron, cast steel, carbon steel, and stainless steel are available depending on application requirements.
Do you provide custom OEM bearing units?
Yes. MetalKeen manufactures custom flanged bearing units according to customer drawings, CAD models, or samples.
What industries use flanged bearing units?
Mining, conveyors, agriculture, paper mills, packaging machinery, food processing, cement plants, steel mills, and industrial automation.
Request a Quote
Looking for a reliable manufacturer of heavy-duty flanged bearing units or custom hub bearing assemblies?
MetalKeen provides complete casting, precision CNC machining, bearing assembly, and quality inspection services for OEM industrial applications. Whether you require standard bearing housings or fully customized bearing assemblies, our engineering team can manufacture according to your drawings and technical specifications.
Send us your drawings or project requirements today to receive a fast quotation and professional engineering support.
