Product Specifications
| Parameter |
Details |
| Model NO. |
6306 |
| Seals Type |
Zz 2RS Open |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 |
| Vibration |
Z1V1 Z2V2 Z3V3 |
| Service |
OEM ODM |
| Certification |
ISO9001:2008 |
| Weight |
0.345 kg |
| Place of Dispatch |
China |
| Transport Package |
Carton Pallet |
| Specification |
30*72*19 mm |
| Trademark |
NSK |
| Origin |
Japan |
| HS Code |
8482102000 |
| Production Capacity |
1000000 pieces |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Presses, Gearboxes |
| Automotive |
Electric Motors, Transmission Systems |
| Manufacturing |
Conveyors, Pumps, Compressors |
| Agriculture |
Tractor Components, Harvester Mechanisms |
| New Energy |
Wind Turbine Accessories, Photovoltaic Equipment |
Minimize Downtime with Reliable Deep Groove Ball Bearings for Industrial Machinery
Equipment failure due to bearing issues can halt production lines, costing thousands in lost output. Many buyers struggle with inconsistent quality from unknown suppliers or face high minimum order quantities when sourcing critical replacements like the 6306, 6307, and 6308 series. Choosing the wrong seal type or precision grade further shortens service life, leading to frequent replacements and rising maintenance costs.
Authentic Deep Groove Ball Bearings with Flexible Sourcing Options
Our Deep Groove Ball Bearing range, including 6306, 6307 2RS, 6308 Open, and 6405 Zz models, solves these challenges by combining authentic NSK quality with flexible ordering. As an integrated manufacturer and exporter since 2005, we offer 1pc MOQ for standard items, ensuring you can source even single replacement bearings without overstocking. Our ISO9001-certified production and strict QC processes guarantee consistent performance, whether you need P0-P4 precision grades or Z2-Z4 noise control for sensitive industrial machinery applications.
Engineered for Demanding Industrial Operating Conditions
These bearings excel in high-speed rotation scenarios common in machine tools and printing equipment, where precision and low vibration are critical. The 6306 model, with its 30x72x19 mm dimensions, delivers reliable performance under radial loads, while options like 2RS seals provide effective protection against dust and moisture in manufacturing environments. For heavy-duty applications such as agricultural machinery, the robust construction ensures resistance to shock loads and wear, maintaining efficiency even in harsh conditions.
Technical Features That Maximize Machine Performance
The precision rating directly impacts operational stability—P4 grade bearings minimize runout, essential for CNC machine spindles requiring tight tolerances. Vibration classes Z1V1 to Z3V3 allow customization based on noise sensitivity; Z3V3 is ideal for quiet operation in office equipment or precision instruments. Seal types offer distinct advantages: Zz metal shields provide high-temperature resistance, 2RS rubber seals offer superior contamination protection, and open designs suit applications where lubrication needs frequent monitoring. The ability to choose between grease or oil lubrication further adapts these bearings to specific speed and temperature requirements.
Why Genuine Bearings Reduce Total Cost of Ownership
Counterfeit bearings often fail prematurely, leading to unplanned downtime and costly repairs. A single bearing failure in a production line can result in losses exceeding 10 times the bearing’s cost. Our authentic NSK bearings, backed by ISO9001 certification, deliver predictable service life and reduced maintenance needs. The 12-month global warranty ensures coverage for manufacturing defects, while our free technical guidance helps optimize installation and lubrication—factors that can extend bearing life by up to 50% compared to improper usage.
Our Commitment to Reliable Bearing Supply
With over 18 years in the industry, we serve global buyers across Europe, America, Southeast Asia, and the Middle East. Our full R&D and QC lab ensures each bearing meets strict performance standards before shipment. We offer 3–5 day sample lead times for testing and 5–15 day bulk delivery, with free samples available (buyer covers freight). Multiple payment options including T/T, credit card, and Alibaba trade assurance provide flexibility, while our defect replacement and refund policy underscores confidence in product quality. As your long-term partner, we prioritize stable supply and competitive pricing without compromising on performance.
Packaging & Shipping
- Secure carton and pallet packaging to prevent damage during transit
- 3–5 day lead time for samples, 5–15 days for bulk orders
- Multiple logistics options: DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking provided for all shipments
- 1pc minimum order quantity for standard bearings, ideal for emergency repairs
Get Your Industrial Machinery Bearings Today
Don’t let bearing issues disrupt your production schedule. Whether you need a single 6307 2RS for urgent maintenance or bulk 6308 Open bearings for new equipment assembly, we ensure fast delivery and reliable performance. Contact us with your specific model, quantity, and application details to receive a tailored quote—our team responds within 24 hours to help you get back to optimal operation.
Frequently Asked Questions
Q: Are these genuine NSK bearings?
A: Yes, we supply authentic NSK bearings sourced through authorized channels, with full traceability documentation available upon request.
Q: How do I confirm the right bearing model for my machine?
A: Provide your equipment model or existing bearing specifications (dimensions, load requirements, speed), and our technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: We offer a 12-month global warranty covering manufacturing defects, with free replacement or refund available for non-conforming products.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, supporting both emergency repairs and small-batch purchases.
Q: How quickly can you ship?
A: Samples ship within 3–5 days, and bulk orders within 5–15 days. Rush delivery options are available for urgent requirements.
Q: How can I verify bearing authenticity?
A: Authentic NSK bearings feature laser-etched markings, original packaging with security labels, and serial numbers verifiable through official channels. We provide all necessary documentation for verification.
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Tags:
6306 Bearing
6307 2RS
6308 Open
6405 Zz Bearing
deep groove ball bearing
Deep Groove Ball Bearing for Industrial Use
Industrial Machinery Bearings
Precision P4 Deep Groove Ball Bearing
