Ensure uninterrupted heavy-duty operations with the HR30338J Taper Roller Bearing, engineered to deliver exceptional precision (P0-P4) and durability for rolling mills, mines, and metallurgy applications. Its 190x400x86mm dimensions and Z1V1-Z3V3 vibration control minimize downtime in high-load environments, addressing the critical need for reliable performance in demanding industrial settings.
| Parameter | Details |
|---|---|
| Model NO. | HR30338J |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Service | OEM, ODM |
| Transport Package | Carton, Pallet |
| Specification | 190×400×86 mm |
| Trademark | NSK |
| Origin | Japan |
| HS Code | 8482200000 |
| Industry | Typical Equipment |
|---|---|
| Metallurgy | Rolling Mills, Continuous Casters |
| Mining | Mine Crushers, Conveyor Systems |
| Heavy Machinery | Industrial Gearboxes, Press Machines |
Operations managers in rolling mills and mining know the frustration of unexpected bearing failures—costing up to $20,000 per hour in downtime. When low-quality bearings fail prematurely under heavy loads, production halts, maintenance costs spike, and deadlines are missed. Sourcing reliable, precision-grade bearings that meet your exact specifications shouldn’t add more stress to your workflow.
The HR30338J Taper Roller Bearing delivers the durability required for rolling mills, mines, and metallurgy equipment. With precision grades from P0 to P4 and vibration levels up to Z3V3, this bearing handles radial and axial loads efficiently in harsh industrial environments. As a professional bearing supplier with decades of export experience, we ensure every unit meets ISO standards, backed by strict quality control processes from raw material inspection to final testing.
Designed for heavy-duty applications, the HR30338J excels under high radial loads and moderate axial loads common in rolling mill stands and mining crushers. Its 190×400×86 mm dimensions provide robust support for large machinery shafts, while grease or oil lubrication flexibility allows adaptation to varying operating temperatures and speeds. In metallurgical processes, where equipment reliability directly impacts production output, this bearing’s vibration resistance (Z3V3) minimizes noise and extends service life.
Precision rating is critical for bearing performance—P4 grade ensures minimal radial runout, reducing shaft vibration and improving gear meshing accuracy in rolling mills. The Z3V3 vibration class further enhances stability by limiting vibration acceleration, a key factor in preventing premature fatigue in high-speed applications. With OEM/ODM capabilities, we can adjust clearance and cage design to match specific equipment requirements, ensuring optimal fit and load distribution for your machinery.
Counterfeit taper roller bearings often cut corners on material quality, using low-grade steel that fails under heavy loads. A single counterfeit HR30338J failure can damage expensive equipment components, leading to repair costs 10x the bearing’s value. Our genuine NSK bearings are sourced directly from authorized channels, with full traceability to ensure material integrity and manufacturing standards. Every unit undergoes dimensional detection and performance testing in our in-house laboratory, meeting ISO 9001:2015 quality management requirements.
With over 18 years in the industry, we serve brand owners, distributors, and industrial buyers across Europe, North America, and Southeast Asia. Our ISO 14001 environmental certification reflects our commitment to sustainable manufacturing, while our high-tech enterprise qualification underscores our R&D capabilities. We offer flexible order policies—1 piece MOQ for standard bearings and free samples for distributors—to support your maintenance and production needs. Our technical team provides free guidance on selection, installation, and troubleshooting, ensuring you get the right bearing for your application.
Don’t let bearing issues slow down your operation. Whether you need a single unit for emergency repair or bulk orders for planned maintenance, we ensure reliable supply and fast delivery. Send us your equipment details and quantity requirements, and our team will confirm compatibility and provide a competitive quote within 24 hours.
Q: Are these genuine NSK HR30338J bearings?
A: Yes, we are an authorized supplier of genuine NSK bearings, with full traceability documentation available upon request.
Q: How do I confirm if this bearing fits my rolling mill?
A: Provide your equipment model or shaft dimensions, and our technical team will verify compatibility based on load, speed, and operating conditions.
Q: What is the warranty period for the HR30338J?
A: All products come with a 12-month warranty from the date of delivery, covering manufacturing defects.
Q: Can I order just one bearing for emergency repair?
A: Yes, we offer 1 piece MOQ for standard bearings to support urgent maintenance needs.
Q: How long does shipping take to Europe?
A: Sample orders typically arrive in 3-5 working days via DHL; bulk orders take 5-15 working days plus transit time.
Q: How can I verify the authenticity of the bearing?
A: Each NSK bearing includes laser-etched markings and packaging with security features; we provide certification of authenticity for all orders.
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Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
Professional technical guidance and failure solutions from our R&D team.
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