Aug 5, 2026 · Technical Resources
Custom OEM Bearing Preload Optimization for OE Applications – ISO 9001 Factory
Master OEM bearing prelo…
Read the selection guideSKF bearings by designation · Itemized written quotes for mixed project lists




State the exact execution (designation suffix), whether you need the complete assembly, and which housings or mounting accessories belong on the same line. Keep precision items separate, with accuracy class and arrangement.
Technical data
Listed data for this SKF designation; confirm the execution and dimensions against your drawing or application before ordering.
| Category | Spherical Roller Bearing |
|---|
| Parameter | Details |
|---|---|
| Model Number | 6306 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
| Stock | Rich Stocks |
| Transport | by Sea or by Air |
| Service | OEM, ODM |
| Rolling Body | Roller Bearings |
| The Number of Rows | Single |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Unseparated |
| Specification | 30*72*19 mm |
| Origin | China |
| HS Code | 8482102000 |
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | General rotating equipment, conveyor systems, pumps |
Finding a reliable 6306 deep groove ball bearing can be challenging when faced with inconsistent quality from suppliers. Many buyers experience early bearing failure due to poor material quality or imprecise manufacturing, leading to unexpected downtime and maintenance costs. Sourcing from multiple suppliers to compare options only adds complexity to the procurement process.
The 6306 deep groove ball bearing addresses these challenges with its high precision manufacturing and long-life design. With dimensions of 30x72x19mm, it meets international standards for interchangeable use in various industrial machinery. Our extensive inventory ensures quick availability, while our ISO 9001 certified quality control processes guarantee consistent performance across every unit. Whether used in conveyor systems or general rotating equipment, this bearing delivers reliable operation under demanding conditions.
This 6306 deep groove ball bearing excels in applications with primarily radial loads, such as electric motors and pumps. Its single-row design and non-aligning structure make it suitable for high-speed operations where precision is critical. The bearing's low noise characteristics and high-speed capability ensure smooth operation, reducing overall equipment vibration and extending service intervals.
Crafted from high-quality bearing steel, this 6306 bearing offers excellent durability and wear resistance. The precision rating options (P0 to P2) allow selection based on specific application requirements, from general industrial use to high-precision machinery. Vibration classes Z1V1 to Z3V3 provide flexibility for noise-sensitive environments. The unseparated design ensures easy installation and maintenance, while the radial load capacity makes it a versatile choice for various industrial applications.
Selecting a high-quality 6306 deep groove ball bearing directly impacts your equipment's total cost of ownership. Inferior bearings may have a lower upfront price but often result in frequent replacements, unplanned downtime, and potential damage to connected components. Our long-life ball bearing reduces maintenance frequency and extends equipment lifespan, ultimately lowering overall operational costs. Following ISO 281 standards for bearing life calculation, this 6306 bearing delivers predictable performance you can rely on.
Our 6306 deep groove ball bearings undergo rigorous quality control processes, from raw material inspection to final product testing. Each unit is checked for dimensional accuracy, hardness, and surface finish to ensure compliance with industry standards. We provide a warranty against manufacturing defects, giving you confidence in your purchase. With our extensive network of global suppliers, we can source bearings according to your specific brand or standard requirements, ensuring compatibility with your existing equipment.
Whether you need a single 6306 deep groove ball bearing or a bulk order, we can provide competitive pricing and reliable delivery. Simply share your required quantity, precision rating, and destination, and our team will prepare a customized quote. With our extensive inventory and global shipping network, we can fulfill your order quickly and efficiently.
Q: Do you support procurement of other bearing brands or models?
A: Yes, we offer a full range of bearing brands and models. We can source according to your specific brand or型号 requirements.
Q: How can I confirm if this 6306 bearing fits my equipment?
A: Provide your equipment model or existing bearing dimensions, and our technical team will verify compatibility with the 30x72x19mm 6306 bearing.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. Specific terms and duration are outlined in our sales contract.
Q: What is the minimum order quantity for the 6306 bearing?
A: We support low minimum order quantities, including small-scale trial orders to meet your specific needs.
Q: How long does shipping take and what options are available?
A: In-stock 6306 bearings ship immediately. We offer both sea and air transport options, with delivery times varying by destination.
Q: Can you provide OEM or ODM services for this bearing?
A: Yes, we offer OEM and ODM services. Contact us with your specific customization requirements for further details.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we'll get back to you with pricing and lead time.
Project buyers
"We submitted a long SKF list for a new project, mixing ball, roller, needle and thrust bearings. This supplier came back with itemized pricing, lead times and alternatives for two long-lead references. We could plan the procurement timeline without surprises."
Daniel KimKim Engineering Project · South Korea"When our project timeline shifted and we needed to split the delivery into three batches, the supplier worked with us on the schedule. Each batch arrived complete and on the agreed date. No holding costs, no rush shipping fees."
Mohammed Al-AminAl-Amin Contracting · Saudi ArabiaSame series
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Typical equipment and duty conditions this SKF bearing type is specified for.
Standard and precision lines listed separately, each with model, stock, lead time and validity — so your comparison is line by line, not guesswork.
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Read the selection guideFAQ
Send the selected SKF model, quantity per line, accuracy requirement, mounting accessories, destination country and postcode, and the date you need the goods. Confirm the exact execution and whether you need the complete assembly. With that, Project Purchasing Company returns a written itemized quote.
List precision bearings on separate lines with their accuracy class and arrangement or configuration. Keeping them apart from standard bearings prevents wrong pricing and wrong shipments on mixed project lists.
Yes. Send a photo of the nameplate or bearing markings, and we list the information that still needs confirming. Any technical change or alternative model is clearly marked and requires your approval.
Yes. Shipping method and delivery schedule are confirmed before dispatch, so batches can follow your installation timeline. On receipt, check labels, quantity and condition; any mismatch is handled with your order number and photos.
Request a quote
Project Purchasing Company quotes every line by SKF model, with price and currency, stock, estimated lead time, validity and freight or tax terms. Add related bearings and accessories to the same request.