X&S 6306 6307 6308 6309 6310 Deep Groove Ball Bearing for Auto Parts
X&S 6306 6307 6308 6309 6310 Deep Groove Ball Bearings P0–P4 — Single-row radial bearings for automotive and industrial use. Zz shields provide dust protection, 2RS seals prevent contamination, and open types allow external lubrication. Precision up to P4 and Z4V4 vibration ratings ensure low-noise operation.
- Verify authenticity and batch traceability instantly via the official brand app QR channel.
Batch Traceability — Every X&S 6306 6307 6308 6309 6310 deep groove ball bearing ships with verifiable lot documentation to prevent counterfeit infiltration.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 6306 6307 6308 6309 6310 |
| Bearing Type | Deep Groove Ball Bearing |
| Rows Number | Single Row |
| Load Direction | Radial Bearing |
| Seal or Shield Type | Zz, 2RS, Open |
| Precision Class | P0, P6, P5, P4 |
| Vibration and Noise | Z1V1, Z2V2, Z3V3, Z4V4 |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Performance | High Speed, Low Noise, Long Life |
| Origin | Shandong, China |
| HS Code | 8482102000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Automotive Repair | Alternator pulleys, transmission shafts, wheel hub assemblies |
| Electric Motors | Rotor shaft support, cooling fan drives, stator alignments |
| Industrial Gearboxes | High-speed input shafts, intermediate gear supports |
| Material Handling | Conveyor roller idlers, drive pulley bearings |
| Fluid Machinery | Centrifugal pump shafts, impeller supports |
Why Base Numbers Sabotage Automotive Rebuilds
Matching the base designation without verifying internal configurations guarantees premature field failure.
In the automotive repair sector, sourcing components based solely on the base number is a widespread trap. I have seen workshops install standard clearance bearings into high-temperature transmission environments, leading to thermal binding and catastrophic cage failure within weeks. When procuring the X&S 6306 6307 6308 6309 6310 deep groove ball bearing, ignoring seal friction or precision grades results in alternator whine or gearbox vibration [NEED_CITE: rolling bearing failure mode classification per ISO 15243]. The assumption that all identical base numbers perform equally overlooks critical internal engineering differences.
Aligning Component Specs with Drivetrain Demands
Selecting the correct X&S 6306 6307 6308 6309 6310 deep groove ball bearing requires matching the exact operational profile of the vehicle or industrial machine. Our technical team cross-references your OEM equipment numbers to ensure the selected seal type and precision grade align perfectly with the original factory specifications. This rigorous verification prevents the mismatched installations that typically cause warranty disputes and repeat repair visits in busy automotive workshops.
Navigating Thermal and Contamination Challenges
Automotive and industrial environments subject radial components to severe thermal cycling and particulate contamination. High-speed electric motors demand non-contact shields to minimize friction heat, whereas agricultural gearboxes require heavy-duty contact seals to block moisture and dust ingress. Temperature fluctuations dictate internal clearance requirements; a standard clearance will bind when the shaft expands under heavy continuous loads [NEED_CITE: thermal expansion effects on radial internal clearance]. Proper lubrication selection further dictates whether the component survives the operational stress or degrades prematurely.
Decoding Precision and Vibration Classifications
The available precision ratings from P0 to P4 directly influence the rotational accuracy and operational smoothness of high-speed spindles and electric motors. Upgrading to P5 or P4 ensures tighter dimensional tolerances, significantly reducing runout in sensitive machine tool applications. Concurrently, the vibration classifications ranging from Z1V1 to Z4V4 dictate the acoustic performance. Selecting a Z3V3 or Z4V4 grade is mandatory for automotive alternators and HVAC motors where low noise is a strict operational requirement, preventing the high-frequency whine that fails standard quality inspections.
The Hidden Financial Drain of Incorrect Selections
Installing an improperly specified component triggers a cascade of mechanical failures that extend far beyond the initial part cost. Unplanned downtime in a continuous manufacturing line or a stranded commercial vehicle results in substantial financial penalties and lost productivity. According to ISO 281 frameworks, operating a component outside its designed thermal or load limits drastically truncates its fatigue life [NEED_CITE: bearing life calculation methods per ISO 281]. This premature failure often damages adjacent shafts and housings, transforming a simple replacement into a major mechanical overhaul.
Securing Your Supply Chain Against Counterfeits
Sourcing these specific designations through our authorized channels guarantees authentic metallurgy and precise dimensional accuracy. We verify cross-references down to the exact seal suffix and vibration class, preventing the common error of substituting a standard P0 grade where a P4 is required. Every shipment includes comprehensive batch traceability, allowing your quality control team to verify the origin and manufacturing lot directly. This rigorous documentation protocol eliminates the risk of soft inner rings and cloned packaging infiltrating your critical maintenance inventory.
Documentation & Authenticity
- Certificate of Conformity validating the specific precision grade and vibration class.
- Batch and lot traceability linking each unit to its original manufacturing run.
- Official app QR verification for immediate authenticity checks upon delivery.
- Material test report confirming the bearing steel metallurgical composition.
- Dimensional and running accuracy inspection report verifying P4 or P6 tolerances.
- Country-of-origin documentation for customs and compliance clearance.
Storage, Handling & Mounting
- Retain original factory packaging to protect the Zz or 2RS seals from ambient moisture.
- Store P4 precision variants in climate-controlled environments to prevent thermal distortion.
- Use induction heaters for cylindrical bore installations to avoid damaging the raceways.
- Maintain strict cleanliness when handling Open type variants to prevent particulate contamination.
- Verify Z3V3 and Z4V4 low-noise grades for smooth rotation before pressing into housings.
Engineering Support and Technical Verification
To ensure optimal performance and extended service life, provide our engineering team with your specific radial and axial load profiles, operational speeds, and ambient temperature ranges. Sharing the exact OEM equipment numbers allows us to perform a comprehensive cross-reference check, confirming that the seal configuration and internal clearance match the original design intent. This technical review guarantees that the selected components will withstand your unique operational stresses without premature degradation.
Frequently Asked Questions
Q: How do I verify the authenticity of the received batch?
A: Every unit features a unique traceability code that can be scanned using the official brand application. This digital verification confirms the manufacturing lot, origin, and specific precision grade, ensuring the components are genuine and protecting your equipment from the severe damage caused by counterfeit materials with substandard metallurgy.
Q: Why is cross-referencing more than just the base number important?
A: Matching only the base number often overlooks critical internal differences like seal friction and vibration limits. Installing a standard variant in a high-speed motor causes overheating. We verify the exact suffix requirements to ensure the component matches the OEM thermal and acoustic specifications perfectly.
Q: What is the difference between P0 and P4 precision classes?
A: P0 is the standard class suitable for general industrial applications with normal speed and load requirements. P4 offers significantly tighter dimensional tolerances and running accuracy, which is mandatory for high-speed electric motors and precision spindles to minimize vibration, reduce acoustic noise, and prevent premature fatigue.
Q: How do I choose between Zz shields and 2RS seals?
A: Zz metal shields provide excellent dust protection with minimal friction, making them ideal for high-speed electric motors. 2RS rubber contact seals offer superior moisture and heavy contamination resistance but generate slightly more friction heat, making them better suited for slower, heavily contaminated environments like agricultural gearboxes.
- Product Name
- X&S 6306 6307 6308 6309 6310 Deep Groove Ball Bearing for Auto Parts
- Category
- SKF Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | SKF Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
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Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
The engineering partner advantage
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X&S 6306 6307 6308 6309 6310 Deep Groove Ball Bearing for Auto Parts
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