Sep 19, 2026 · Technical Resources
Ball Bearing Load Rating Reference Table: Wholesale Supplier
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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 | Tapered Roller Bearing |
|---|
| Parameter | Details |
|---|---|
| Model Number | 30306 |
| Bearing Type | Tapered Roller Bearing |
| Bore Diameter (d) | 30mm |
| Outside Diameter (D) | 72mm |
| Width (B) | 19mm |
| Material | Bearing Steel |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482300000 |
| Sample | Available |
| Industry | Typical Applications |
|---|---|
| Mining Machinery | Gearboxes, conveyors, mining equipment |
| Automotive | Car transmissions, drivetrain components |
| Industrial | Fan assemblies, rotating machinery |
Finding the right tapered roller bearing for mining equipment can be challenging. In the mining industry, equipment downtime due to bearing failure leads to significant production losses. Many buyers struggle with inconsistent quality from suppliers or face delays when sourcing specific models like the 30306. The wrong bearing—whether in dimensions, material, or strength—can result in premature wear, especially under heavy loads and harsh conditions.
The SKF 30306 tapered roller bearing is engineered to address these challenges. With dimensions of 30x72x19mm, it delivers high strength required for mining machinery, where reliable performance under radial and axial loads is critical. Our supply chain ensures access to authentic SKF products, backed by a professional team that understands industrial applications. Whether your equipment operates in dusty mines or high-stress gearboxes, this bearing provides the durability needed to minimize maintenance interruptions.
This tapered roller bearing excels in applications involving combined radial and axial loads, common in mining gearboxes and conveyor systems. The bearing steel construction ensures resistance to deformation under heavy loads, while the precision manufacturing maintains consistent performance even in variable operating temperatures. Properly selected for mining machinery, it reduces the risk of unexpected failures that can halt production schedules.
The 30306 bearing’s design incorporates several critical features that impact performance. The tapered roller geometry allows efficient distribution of loads, extending service life under the heavy stresses of mining operations. The 30mm bore diameter and 72mm outer diameter ensure compatibility with standard mining equipment shafts and housings, simplifying replacement. Bearing steel material provides the necessary hardness to resist wear, while the 19mm width offers stability in high-torque applications. These specifications collectively contribute to a bearing that meets the rigorous demands of mining machinery.
Selecting the correct SKF 30306 tapered roller bearing directly affects your total cost of ownership. A high-quality bearing reduces the frequency of replacements, lowering maintenance labor and downtime costs. In contrast, using inferior bearings may save upfront but often leads to premature failures, damaging adjacent components and increasing repair expenses. The 30306’s robust construction and authentic SKF quality help avoid these hidden costs, making it a cost-effective choice for long-term mining operations.
We adhere to strict quality management processes, ensuring all bearings meet industry standards. Our products are sourced through reliable channels, and each bearing undergoes inspection to verify dimensions and material quality. We provide warranty coverage for manufacturing defects, giving you confidence in your purchase. With a focus on transparency, we offer complete documentation to support your procurement and quality control requirements.
To secure the SKF 30306 tapered roller bearing for your mining machinery, provide your required quantity and delivery location. Our team will promptly confirm availability and pricing, ensuring you receive the bearings when you need them. Whether for scheduled maintenance or urgent replacements, we streamline the procurement process to keep your operations running smoothly.
Q: Do you supply other bearing brands and models besides SKF?
A: Yes, we offer a full range of bearings from various international and domestic brands, and can source specific models as per customer requirements.
Q: How can I confirm if the SKF 30306 fits my mining equipment?
A: Provide your equipment’s bearing specifications or original part number, and our technical team will verify compatibility with the 30306 dimensions (30x72x19mm).
Q: What warranty coverage do you offer for this bearing?
A: We provide a warranty against manufacturing defects; specific terms are outlined in the purchase agreement.
Q: What is the minimum order quantity for the SKF 30306?
A: We support low minimum order quantities, including small batches for testing or emergency replacements.
Q: How long does shipping take for the SKF 30306 bearing?
A: Spot inventory items are shipped promptly, with delivery times varying by destination—typically 7-15 days for international door-to-door service.
Q: Can you provide custom packaging or labeling for this bearing?
A: Yes, we offer customized packaging and labeling services to meet specific customer requirements.
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.