Deep Groove Ball Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Deep Groove Ball Bearing
NTN 6307 Deep Groove Ball Bearing Japan High Quality
Ensure smooth, reliable performance in your machinery with the NTN 6307 Deep Groove Ball Bearing, crafted to deliver long-lasting precision even under heavy radial loads. This Japan-quality bearing minimizes downtime with its durable bearing steel construction and versatile lubrication options (grease or oil), making it a smart choice for high-demand applications.
- Precision-engineered 35*80*21 mm dimensions ensure perfect fit for standard 6307 bearing requirements
- Available in multiple seals (ZZ, 2RS, Open) and precision ratings (P0-P4) to match your specific operating conditions
- Non-aligning, single-row design maintains stability, reducing wear on connected components for extended equipment life
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Produktspezifikationen
| 6307 |
| 35*80*21 mm |
| NTN |
| NTN |
Anwendungseignung
| Wheel hubs, transmission systems, engine components |
| Conveyor systems, pumps, electric motors |
| Hydraulic pumps, cylinder assemblies |
| Robotic arms, precision machining tools |
Struggling with Bearing Reliability? The NTN 6307 Deep Groove Ball Bearing Delivers Consistent Performance
Many maintenance managers face the frustration of unexpected downtime caused by premature bearing failure. Whether it’s misalignment issues, inconsistent lubrication, or subpar material quality, the wrong bearing choice can lead to costly repairs and production delays. Sourcing the right model across multiple brands often means juggling multiple suppliers, each with their own lead times and minimum order requirements.
Engineered for Dependable Service in Critical Applications
The NTN 6307 deep groove ball bearing addresses these challenges with its robust design and versatile performance. As part of our comprehensive bearing portfolio, this model benefits from our ISO 9001 certified quality control processes, ensuring each unit meets strict dimensional and material standards. Available with Zz, 2RS, or open seals, it adapts to diverse operating conditions—from clean industrial environments to applications requiring enhanced contamination protection. With our extensive inventory, we support both small-scale repairs and large production runs, eliminating the need for multiple vendor relationships.
Optimale Leistung bei Radiallastanwendungen
Designed as a single-row radial bearing, the 6307 excels in applications where radial loads are primary. Its 35mm bore diameter, 80mm outer diameter, and 21mm width make it suitable for medium-duty equipment such as electric motors, conveyors, and hydraulic pumps. The non-aligning design requires precise mounting, making it ideal for rigid shaft arrangements where misalignment is minimal. When paired with appropriate lubrication—either grease or oil—it maintains stable operation across a wide range of speeds, reducing the risk of overheating and wear. Wichtige technische Merkmale, die die Lebensdauer beeinflussen
The bearing’s performance is rooted in several critical specifications. Constructed from high-grade bearing steel, it offers excellent hardness and wear resistance, essential for withstanding continuous operation under load. Precision ratings from P0 to P4 allow selection based on application requirements—P4 for high-speed machinery requiring minimal vibration, and P0 for general-purpose use. Vibration classes Z1V1 to Z3V3 further refine performance, with higher classes reducing noise and resonance in sensitive equipment. The unseparated design ensures easy installation and maintenance, while the choice of seal types lets users balance protection against friction: 2RS seals for dusty environments, Zz for high-temperature applications, or open designs for frequent lubrication access. Gesamtbetriebskosten: Warum Qualität mehr zählt als Preis
Choosing a low-cost bearing may seem economical initially, but the hidden costs of early failure—unplanned downtime, labor for replacement, and potential damage to adjacent components—quickly erase savings. The NTN 6307’s adherence to strict manufacturing standards translates to longer service life, reducing replacement frequency. Our ISO 9001 compliant processes include raw material testing and成品 inspection, ensuring each bearing meets dimensional accuracy and hardness requirements. By selecting the appropriate precision and vibration class upfront, you minimize the risk of premature wear, directly impacting your equipment’s overall reliability and operational costs. Qualität, auf die Sie sich verlassen können
Our commitment to quality is backed by ISO 9001 certified production and inspection procedures. Each bearing undergoes thorough checks for dimensional accuracy, surface finish, and material hardness before leaving our facility. We stand behind our products with a warranty against manufacturing defects, providing peace of mind for your critical applications. As a comprehensive bearing supplier, we offer not just NTN products but also access to a wide range of international and domestic brands, allowing you to source all your bearing needs through a single, trusted partner. Our ready inventory ensures quick turnaround, with support for urgent orders and flexible shipping options. Niedrige Mindestbestellmenge unterstützt, von Einzelstücken bis zu vollen Containerladungen Whether you need a single replacement bearing or a bulk order for production, we’re ready to assist. Provide your required seal type, precision class, and quantity, and our team will prepare a competitive quote with lead time. We also welcome inquiries for alternative brands and custom specifications—our extensive network ensures we can source even hard-to-find models. Häufig gestellte Fragen F: Liefern Sie auch Lager von anderen Marken außer ?
A: Yes, we offer a full range of international brands including SKF, NSK, Koyo, NACHI, IKO, FAG, Timken, and domestic quality brands. We can source any specified brand or model. Q: How can I confirm if the 6307 bearing fits my equipment? A: Provide your equipment’s make, model, or existing bearing dimensions (bore x outer diameter x width), and our technical team will verify compatibility with the NTN 6307 specifications. Q: Was ist Ihre Garantiepolitik für Lager?
A: We provide a warranty against manufacturing defects. The warranty period and terms are specified in each order confirmation, with replacement or refund available for verified defects. Q: What is the minimum order quantity for the NTN 6307? A: We support low minimum orders, including single units for emergency repairs. Larger quantities may qualify for volume pricing. Q: How quickly can you ship the 6307 bearing? A: Stock items typically ship within 1-2 business days. For large or custom orders, lead times will be provided in your quote. F: Bieten Sie OEM- oder ODM-Dienstleistungen für Lager an?
A: Yes, we support OEM and ODM customization, including private labeling, custom packaging, and bearings Our engineers will respond within 12 hours with a tailored solution.
Packaging & Shipping
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Product Summary
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General Specifications
| Bearing Type | Deep Groove Ball 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 |
Custom Specifications Available
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.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
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.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
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NTN 6307 Deep Groove Ball Bearing Japan High Quality
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