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Mounted flange block bearings are critical components in many mechanical systems, ensuring smooth rotational movement. Selecting the appropriate bearing type is essential for optimal performance, longevity, and preventing premature equipment failure.
Premium Pressed Steel Housing – Heavy-duty stamped steel construction with zinc-plated finish for excellent corrosion resistance, long service life, and reliable performance in light to medium duty applications.
2-Bolt Flange Design – Compact rhombic flange with two mounting holes for easy, space-saving installation; fits standard 5/16"-18 UNC bolts (M6 compatible)
Complete Bearing Unit – Pre-assembled SBPFL/PFL series insert bearing + stamped flange housing, ready to mount; PFL202=1/2"(12.70mm)
Self-Aligning & Low Friction – Spherical outer ring design compensates for minor misalignment; high-quality ball bearing with double rubber seals keeps dirt out, ensures smooth, quiet operation.
HIGH QUALITY - The pillow block bearing is made of bearing steel, which is more solid and durable, with high density, durability and long service life
LOWERS MAINTANENCE COSTS - The installed pillow bearing avoids repeated disassembly and repair of the bearing, reduces replacement frequency and maintenance costs
DOUBLE SEALING - The pillow bearing adopts a double layer seal, which has good sealing performance and does not allow impurities and water to enter, extending its service life
HIGH PERFORMANCE -2 Pack UCF205-16 pillow bearing has low friction, low noise, uniform speed, reduced impact on equipment, and good load performance
🔹 Premium Bearing Steel Construction – Made from high-density bearing steel for superior strength, durability, and a longer service life compared to standard bearings.
🔹 Reduces Maintenance Costs – Pre-installed in a sturdy solid cast iron housing pillow block housing, eliminating frequent disassembly and lowering replacement & repair
🔹 Double-Sealed Protection – Features dual-layer sealing to block dust, water, ensuring smooth operation and extended lifespan.
🔹 Smooth & Quiet Performance – Engineered for low friction, minimal noise, and even rotation, reducing equipment wear and improving load capacity.
Materials and Manufacturing: The bearing housing is made of steel, while the bearing core is crafted from bearing steel and finely machined to ensure exceptional hardness.
Lower Operating and Maintenance: The bearing’s long service life effectively lowers replacement frequency and cuts equipment maintenance expenses, helping you save time.
Stable Performance: The UCF208‑24 square housing bearing features a low coefficient of friction, low operating noise, and smooth, stable rotation, while also offering strong load-bearing capacity.
Versatile Applications: Suitable for a wide range of industries, including textiles, metallurgy, and suitable for various types of industrial machinery.
HIGH PERFORMANCE - UCFL202-10 pillow bearing has low friction, low noise, uniform speed, reduced impact on equipment, and good load performance
LOWERS MAINTANENCE COSTS - The installed pillow bearing avoids repeated disassembly and repair of the bearing, reduces replacement frequency and maintenance costs
DOUBLE SEALING - The pillow bearing adopts a double layer seal, which has good sealing performance and does not allow impurities and water to enter, extending its service life
HIGH QUALITY - The pillow block bearing is made of bearing steel, which is more solid and durable, with high density, durability and long service life
Premium Pressed Steel Housing – Heavy-duty stamped steel construction with zinc-plated finish for excellent corrosion resistance, long service life, and reliable performance in light to medium duty applications.
2-Bolt Flange Design – Compact rhombic flange with two mounting holes for easy, space-saving installation; fits standard 3/8"-16 UNC bolts (M8 compatible)
Complete Bearing Unit – Pre-assembled SBPFL/PFL series insert bearing + stamped flange housing, ready to mount; PFL205=1"(25.40mm)
Self-Aligning & Low Friction – Spherical outer ring design compensates for minor misalignment; high-quality ball bearing with double rubber seals keeps dirt out, ensures smooth, quiet operation.
LONG-LASTING PERFORMANCE - Our 2 Pack UCFL204-12 bearing is made from ultra-durable bearing steel, ensuring that it can withstand even the toughest conditions and provide long-lasting performance.
LOWERS MAINTANENCE COSTS - The installed pillow bearing avoids repeated disassembly and repair of the bearing, reduces replacement frequency and maintenance costs
DOUBLE SEALING - The pillow bearing adopts a double layer seal, which has good sealing performance and does not allow impurities and water to enter, extending its service life
HIGH QUALITY - The pillow block bearing is made of bearing steel, which is more solid and durable, with high density, durability and long service life
This mounted bearing has a wide number of applications and is used in Agriculture, Automotive, Pump, Construction, Manufacturing Equipment, Conveyor, Fan Assemblies, Farm Machinery, and Feed Mill
These general-purpose pillow block ball bearings are suitable for environments where corrosion is not a concern. They are often used in material handling, packaging, and dry-goods processing.
Housing Material Cast Iron / Bearing Insert Material Alloy Steel 52100
Type: 4-Bolt flange units with set screw lock./Self Aligning flange units Bearings
Premium Pressed Steel Housing – Heavy-duty stamped steel construction with zinc-plated finish for excellent corrosion resistance, long service life, and reliable performance in light to medium duty applications.
2-Bolt Flange Design – Compact rhombic flange with two mounting holes for easy, space-saving installation; fits standard 3/8"-16 UNC bolts (M8 compatible)
Complete Bearing Unit – Pre-assembled SBPFL/PFL series insert bearing + stamped flange housing, ready to mount; PFL205=3/4"(19.05mm)
Self-Aligning & Low Friction – Spherical outer ring design compensates for minor misalignment; high-quality ball bearing with double rubber seals keeps dirt out, ensures smooth, quiet operation.
ULTRA-DURABLE - The chrome steel alloy (AISI 52100) body has high resistance to wear and tear, meaning it does not deteriorate under high pressure and meets all industry standards.
LOWERS MAINTANENCE COSTS - Our high-quality industrial bearings are made to last, lowering the replacement frequency and maintenance costs.
ISO 9001:2008 CERTIFIED - These heavy-duty bearings meet the universal industry requirements and will not fail under extreme pressure, holding components together.
SOLID IRON CAST HOUSINGS - Each bearing features a solid cast iron housing, which provides a sturdy base to bearing, allowing it to stay in position.
Last update on 2026-10-02 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Mounted Flange Block Bearings
Understanding Flange Block Bearings
A flange block bearing assembly consists of a bearing unit housed within a square or round flange-shaped cast iron or steel housing. The housing is designed to be bolted directly onto a machine surface, typically at a right angle. These bearings are pre-lubricated and sealed, offering a convenient and robust solution for various applications.
Key Features to Consider
Housing Material: Common materials include cast iron, stainless steel, and plastic. Cast iron is durable and cost-effective, while stainless steel offers superior corrosion resistance for harsh environments. Plastic housings are lightweight and non-conductive.
Bearing Type: The inner bearing can be a ball bearing or a roller bearing. Ball bearings are suitable for moderate loads and higher speeds, whereas roller bearings are designed for heavier loads and slower speeds.
Mounting Style: Flange blocks are typically square or round. Square flange units provide a stable mounting base, while round flange units are often used for shaft support where space is limited.
Sealing: Effective seals prevent contaminants like dust and moisture from entering the bearing, extending its service life. Standard seals are suitable for most applications, while heavy-duty seals are recommended for extreme conditions.
Application Considerations
The intended use of the flange block bearing is paramount. Consider the operating speed, load capacity, environmental conditions (temperature, moisture, dust), and shaft size. For applications involving high shock loads or vibrations, bearings with enhanced damping capabilities might be necessary. Ensure the chosen unit can handle the required rotational speed without overheating.
Installation and Maintenance Tips
Proper installation ensures the bearing performs as expected. Mount the housing securely to a flat, rigid surface using appropriate fasteners. Avoid over-tightening, which can distort the housing and damage the bearing. While many units are sealed for life, regular visual inspection for signs of wear or contamination is advisable. Lubrication is generally not required for sealed units, but consult the manufacturer's recommendations.
Frequently Asked Questions
What is a flange block bearing?
A flange block bearing is an assembly that includes a bearing unit housed within a flange-shaped casing. This casing is designed to be bolted onto a surface, typically perpendicular to the shaft it supports.
What are the main advantages of using flange block bearings?
They offer ease of mounting directly onto machinery surfaces, require minimal shaft preparation, and often come pre-lubricated and sealed. This simplifies installation and can reduce maintenance needs.
How do I determine the correct size of flange block bearing?
The size is primarily determined by the shaft diameter the bearing needs to accommodate. Always refer to the product specifications to ensure compatibility with your shaft size.
Can flange block bearings be used in corrosive environments?
Yes, flange block bearings are available with housings made from materials like stainless steel, which offer excellent resistance to corrosion. Ensure you select a material appropriate for your specific environmental conditions.
What is the typical lifespan of a flange block bearing?
The lifespan varies greatly depending on the application, load, speed, and environmental conditions. Proper selection, installation, and maintenance are crucial for maximizing the bearing's service life.
Do I need to lubricate a sealed flange block bearing?
Most sealed flange block bearings are designed to be maintenance-free and do not require additional lubrication. However, it's always best to consult the manufacturer's guidelines for specific recommendations.
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