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Square Flanged Ball Bearing Units
WSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems
WSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems [WARN] draft identifier mismatchWSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems [WARN] draft identifier mismatchWSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems [WARN] draft identifier mismatchWSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems [WARN] draft identifier mismatchWSFA UCF206 30mm Pre-Lubricated Flange Block Bearing for Conveyor Systems [WARN] draft identifier mismatch

Product details

Bearing Description and Use

The notes below help repair managers, engineers and technical buyers match this bearing to the correct position and arrangement.

Traceable QR Verification — Scan the manufacturer's official app code on each wsfa UCF206 flange block bearing carton to confirm origin and batch integrity before installation.

Technical Specifications

Parameter Value
Designation UCF206
Bore Diameter (d) 30mm
Housing Type Square flanged
Locking Mechanism Set screw
Series Light series (2)
Material Options Available in stainless steel or standard bearing steel variants
Origin China

Application Suitability

Industry Typical Applications
Conveyor Systems Belt drive tail pulleys and return idler supports
Agricultural Machinery Grain auger drive shafts and harvester feed mechanisms
Textile Machines Yarn tensioning rollers and loom shedding mechanisms

Why Conveyor Tail Pulleys Seize Before the Belt Snaps

When sourcing a wsfa UCF206 flange block bearing for continuous material handling, the housing rarely fails first.

Premature seizure almost always originates from compromised sealing profiles allowing particulate ingress into the pre-lubricated cavity.

While analyzing field failures from heavy-duty conveyors, I dismantled several units where the internal grease had completely dried out because abrasive dust bypassed inadequate seals, turning the rolling elements into a grinding paste. Selecting the correct factory-sealed variant prevents this catastrophic lockup.

wsfa UCF206 flange block bearing mounted on conveyor frame

Aligning Housing Geometry with Continuous Material Handling

The square flange design provides a rigid mounting footprint essential for resisting the radial loads typical in belt conveyor systems. Procuring this wsfa UCF206 flange block bearing through our consolidated supply chain ensures you receive matched housing and insert assemblies, eliminating the dimensional mismatches that occur when mixing separate components from different vendors.

Dust Ingress and Lubrication Starvation in Bulk Handling

Conveyor environments subject mounted units to constant radial loading combined with severe particulate exposure. While the rotational speeds remain relatively low, the presence of fine dust demands highly effective contact seals to retain the factory-charged grease. If the sealing lip wears or the wrong clearance class is selected for thermal expansion, the lubricant degrades rapidly. Maintaining the correct internal geometry is critical to avoid friction-induced heat buildup.

Decoding the Insert and Flange Configuration

The nomenclature breaks down into specific functional traits. "UC" denotes an insert bearing with a set screw locking mechanism, providing secure shaft retention without complex adapter sleeves. "F" specifies the square flanged housing, ideal for flat-surface mounting on conveyor frames. The "2" indicates a light series dimensional envelope, balancing load capacity with spatial constraints, while "06" confirms the 30mm bore diameter. Regarding material selection, these assemblies are available in stainless steel or standard bearing steel variants, allowing engineers to match the housing corrosion resistance to washdown environments or standard indoor operations.

Square flange housing and set screw insert bearing assembly

The Downtime Penalty of Mismatched Sealing Profiles

Specifying an open or lightly shielded variant in a dusty conveyor application leads to unplanned downtime and catastrophic damage to the shaft journal. According to ISO 15243 frameworks, abrasive wear from inadequate sealing fundamentally alters the raceway geometry, voiding warranty claims and forcing complete node replacements. The hidden cost of ignoring the sealing specification far exceeds the initial procurement savings.

Securing Traceable Insert Bearings for Critical Conveyor Nodes

We maintain massive spot inventory covering thousands of standard part numbers, ensuring urgent maintenance requirements for conveyor systems are met without extended lead times. Because the set screw locking mechanism on the UCF206 is frequently mismatched with incorrect shaft tolerances, our technical selection support verifies your dimensional drawings before dispatch. We provide complete traceability documentation for every unit, guaranteeing genuine original bearings rather than unverified market stock. Our cross-brand equivalent consultation helps you align existing maintenance schedules with reliable alternatives when official channels face shortages.

Documentation & Authenticity

  • Certificate of Conformity verifying the specific sealing profile and pre-lubrication grade.
  • Original factory batch traceability codes linked to the housing casting date.
  • Material inspection reports confirming the chosen stainless or standard steel variant.
  • Dimensional inspection data validating the 30mm bore and square flange tolerances.

Storage, Handling & Mounting

  • Keep the factory seal intact until mounting to preserve the pre-lubricated grease cavity.
  • Use induction heating for the housing if thermal expansion is needed, avoiding direct flame.
  • Verify shaft tolerance before tightening the set screw to prevent inner ring distortion.
  • Store in original packaging to prevent moisture accumulation on the square flange mating surfaces.
  • Avoid using carbon steel wire brushes on stainless steel variants to prevent cross-contamination.

Engineering Data Required for Conveyor Node Validation

To ensure optimal performance, please share your specific radial loads, operating speeds, and ambient temperature ranges so we can verify the L10 life and sealing adequacy. Providing the exact OEM equipment number allows our engineering team to perform precise cross-reference checks and confirm the required shaft tolerance for the set screw mechanism.

Frequently Asked Questions

Q: How do I verify the authenticity and batch origin of the UCF206?
A: You can scan the official manufacturer app QR code printed on the carton to confirm the batch number and production facility. We also supply a Certificate of Conformity that traces the specific sealing and lubrication specifications back to the original factory run, ensuring full supply chain transparency.

Q: What should I check when cross-referencing this model with other brands?
A: When cross-referencing, you must align the internal clearance class, sealing profile, and set screw positioning, not just the outer dimensions. Different manufacturers use varying grease fill volumes and contact seal designs, which significantly alter performance in dusty conveyor environments.

Q: How does the sealing choice affect the relubrication interval?
A: Units equipped with heavy-duty contact seals retain the factory pre-lubrication longer in high-dust environments, effectively operating as maintenance-free components. If a standard seal is used, or if the operating temperature exceeds normal ranges, you must establish a strict external relubrication schedule to flush out ingressed particulates.

Q: When should I specify the stainless steel variant over standard bearing steel?
A: The stainless steel option is necessary for applications involving frequent chemical washdowns, high humidity, or food-grade compliance where surface corrosion compromises the housing integrity. For standard indoor conveyor systems with typical industrial dust, the standard bearing steel variant provides adequate durability and superior load-carrying capacity.

Q: What are the shaft tolerance requirements for the set screw locking mechanism?
A: The shaft should typically be machined to an h6 or h7 tolerance to ensure a secure grip without distorting the inner ring. An undersized shaft allows the set screw to bite too deeply, causing localized stress concentrations that eventually lead to inner ring cracking under continuous radial loads.

Mechanic fitting a tapered roller bearing into a heavy truck wheel hub in a repair workshop

One list for inch and metric Timken bearings

Rebuilding a differential, wheel end, gearbox or transmission? Request single replacements or a complete assembly list, and compare the set price with itemized prices.

Send Your Assembly List

Buyer questions

Frequently Asked Questions

Transmission Repairs Company supplies Timken bearings to repair shops, distributors and equipment operators worldwide. These answers cover the points buyers check most often.

Do I need to provide both cone and cup numbers?

Yes, provide both numbers wherever the bearing has a separate cone and cup. Listing each component keeps the cup from being missed on the order. If a number is incomplete, send a clear photo of the markings and state what needs confirming.

Can a substitute be supplied without my approval?

No, any technical change requires buyer approval. A substitute is considered only if it is separately identified. The exact specification and complete assembly are confirmed before you accept the quote.

Which product documents can I request?

Name the product documents you need when you request a quote. The documents for your bearing are confirmed at that stage, alongside the part numbers, quantities and estimated lead time.

How are shipping documents handled?

Shipping documents are confirmed for each order, together with the transport method and dispatch arrangements. Include your destination country and postal code in the request. This also lets you compare total landed cost on bulk orders.

Written quote

Request a Quote for This Bearing

Send your cone and cup numbers or full assembly number, and get a written quote with price, availability, estimated lead time and quote validity.