Angular Contact Ball Bearings
SKF ball, roller and mounted bearings for machine builders, distributors and project buyers

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FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B Deep Groove Ball Bearing P5 C3 — The C3 internal clearance effectively accommodates thermal expansion in high-temperature electric motor applications, while the P5 precision class guarantees smooth and reliable mechanical operation.
Product Details
Official App QR Verification — Every FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B deep groove ball bearing shipped includes a scannable traceability code linked to the manufacturer's authentication system.
| Parameter | Value |
|---|---|
| Designation | FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B |
| Bearing Type | Deep Groove Ball Bearing |
| Precision Class | P5 |
| Clearance Class | C3 |
| Vibration/Acoustic Level | Z1V1, Z2V2, Z3V3 |
| Cage Material | Steel, Nylon, Brass (available options) |
| Certification | ISO9001, TS16949, ISO9006, QS9000, VDA6.1 |
| Origin | China, Japan, Sweden |
Note: Suffixes Zz, 2RS, and B are unverified and require manufacturer catalog confirmation prior to final order.
| Industry | Typical Applications |
|---|---|
| Electric Motors & Electrical | Rotor shafts, stator housings, and precision instrumentation drives |
| Industrial Transmission | Gearbox input/output shafts, conveyor drive pulleys, and pump impellers |
| General Manufacturing | Household appliance spindle motors and automated assembly line actuators |
Matching the exact seal and clearance to the operating environment prevents catastrophic dust ingress and thermal seizure.
Processing customs documentation for Latin American routes early in my career, a shipment for a Brazilian mining conveyor arrived with an omitted seal suffix on the purchase order. The open-type bearings were dispatched, and within weeks, abrasive dust infiltrated the rolling elements, causing complete operational lockup. That costly downtime cemented a rigorous approach to verifying every suffix and clearance code, ensuring the FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B deep groove ball bearing you receive perfectly matches your site conditions.
Electric motors and industrial gearboxes demand exceptionally low-friction rotation and stable radial load capacity, which this specific geometry inherently provides across various operational profiles. When sourcing a FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B deep groove ball bearing, our engineering team meticulously cross-references your specific load profiles to confirm the optimal cage material and seal configuration. This proactive validation prevents the common mistake of over-specifying heavy-duty variants for light instrumentation or dangerously under-specifying for high-vibration gearboxes, ensuring the selected component delivers maximum service life without unnecessary procurement costs.
High-speed electric motors and continuous-duty pumps generate significant internal heat, making internal clearance a critical factor for preventing preload binding during extended operational cycles. A C3 clearance class effectively accommodates this thermal expansion, maintaining the necessary operational gap between the rolling elements and raceways even as the shaft and housing temperatures rise. Furthermore, environments like mining conveyors or agricultural processing plants expose components to severe particulate contamination and moisture ingress. Selecting the appropriate contact seal variant is absolutely essential to block abrasive dust while carefully managing the friction heat generated by the seal lip itself, balancing protection with rotational efficiency.
The P5 precision class ensures exceptionally tight dimensional tolerances, which is vital for minimizing vibration and maintaining rotational accuracy in high-speed electric motors and sensitive electrical instrumentation. Complementing this geometric precision, the Z1V1, Z2V2, and Z3V3 acoustic levels indicate stringent manufacturing control over noise and vibration, directly contributing to smoother operation in household appliances and precision gearboxes. The C3 clearance provides the necessary internal gap to handle thermal expansion without inducing excessive internal stress or premature fatigue. Additionally, the available cage material options—steel, nylon, and brass—allow for precise customization based on specific speed and temperature requirements. Steel cages offer robust structural integrity for heavy radial loads, nylon cages reduce overall weight and operational noise for high-speed applications, and brass cages provide superior durability under high-vibration conditions or marginal lubrication scenarios.
Specifying a standard internal clearance for a high-temperature motor application often leads to destructive internal preload as the shaft expands, drastically accelerating fatigue and raceway degradation. According to the failure mode classification per ISO 15243, this thermal seizure manifests as severe raceway smearing, excessive heat generation, and eventual cage collapse. Conversely, using an excessive clearance in a low-speed, high-precision gearbox introduces unwanted radial play, degrading rotational accuracy, increasing acoustic noise, and causing uneven load distribution across the rolling elements. These mismatched parameters inevitably result in unplanned downtime, catastrophic damage to adjacent transmission components, and voided equipment warranties, highlighting the critical importance of precise suffix and clearance selection.
Sourcing genuine components requires much more than just matching a basic part number; it demands rigorous verification of the exact suffix, internal clearance, and manufacturing origin. We provide complete traceability documentation for every FAG 6201 6202 6203 6204 6205 Zz 2RS C3 B deep groove ball bearing, ensuring you receive authentic products with verified P5 tolerances and correct acoustic levels. Our flexible sourcing model accommodates everything from single-unit emergency replacements for a seized pump to full-container consolidation for massive motor manufacturing projects. Furthermore, our technical team actively reviews your application parameters to prevent the costly suffix misinterpretations that frequently plague standard distribution channels. This proactive validation guarantees that the seal type and cage material perfectly align with your operational environment, eliminating the risk of premature field failures caused by incorrect catalog selection.
To ensure the selected suffix and cage material perfectly match your application, please share your specific radial and axial load profiles, operating speeds, and ambient temperature ranges. Providing the exact OEM equipment model numbers allows our engineering team to perform precise cross-reference checks and validate the required internal clearance. This detailed technical review guarantees that the final configuration delivers optimal service life and prevents premature field failures.
Q: How can I verify the authenticity of the received bearings using official tools?
A: Every unit features a unique QR code linked to the manufacturer's official authentication application. By scanning this code, you can instantly verify the production batch, confirm the P5 precision class, and validate the C3 internal clearance. This digital traceability ensures complete transparency and protects your operations from the severe risks associated with counterfeit components in critical transmission systems.
Q: What are the cross-reference considerations for matching clearance and precision classes?
A: When cross-referencing equivalent models from other premium brands, it is crucial to match not only the basic dimensions but also the specific internal clearance and precision class. A standard clearance equivalent will fail in high-temperature motor applications requiring C3 specifications. Our technical team evaluates the exact acoustic levels and cage materials to ensure the alternative designation meets your operational demands.
Q: How does C3 clearance differ from standard CN in high-temperature motor applications?
A: Standard CN clearance is designed for normal operating temperatures and typical assembly fits. In high-speed or high-temperature electric motors, thermal expansion of the shaft and housing reduces this internal gap, potentially causing destructive preload. The C3 clearance provides a larger initial internal gap, accommodating this thermal expansion and maintaining the optimal operational clearance necessary to prevent seizure and ensure smooth rotation.
Q: What is the difference between shield and seal variants in deep groove designs?
A: Shield variants typically utilize non-contact metal covers that offer excellent protection against large particulate ingress while maintaining very low friction, making them ideal for high-speed instrumentation. Seal variants employ contact rubber lips that provide superior exclusion of fine dust and moisture, though they generate slightly higher friction. Selecting the correct suffix depends entirely on the specific contamination and speed requirements of your gearbox or pump.
Q: How to select the appropriate cage material for specific transmission loads?
A: Steel cages offer high structural strength and are suitable for general transmission loads and standard operating temperatures. Nylon cages are significantly lighter, reducing centrifugal forces and operating noise, which is highly beneficial for high-speed electric motors and household appliances. Brass cages provide exceptional durability and resistance to cage fatigue under heavy vibration or marginal lubrication conditions, making them the preferred choice for demanding industrial gearboxes.
Before You Enquire
A complete enquiry ties every price to the right execution, drawing and project stage. It also catches the sleeves and locking components that BOMs often leave out.
Send Your BOMWhere It Fits
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The exact execution is confirmed before you accept a product quote. Share the BOM line and drawing revision. If the marking on an old bearing is incomplete, send a clear photo and note what still needs checking.
List each stage as its own quantity with its own required date. Prototype, production and spare quantities can then appear separately in one project quote, so planners can schedule each stage on its own timing.
State the BOM line, the drawing revision and whether alternatives are allowed. A separately identified alternative is settled before the product quote is accepted. Technical changes require buyer approval, so your design engineer keeps control of the specification.
Product documents are confirmed at the written quote stage, order by order. List the documents your project requires in your enquiry. Transport documents are confirmed with the shipping arrangements for the order.
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