NSK Roller Bearing HR30311-30314DJ for Rolling Mill
Minimize rolling mill downtime with the reliable NSK Roller Bearing HR30311-30314DJ—engineered to deliver consistent performance under heavy radial loads. Crafted from high-grade bearing steel and designed as a separated taper roller bearing, this precision component ensures smooth operation and easy maintenance, addressing common wear issues in high-stress industrial environments.
- Precision ratings from P0 to P2 and vibration levels Z1V1 to Z3V3 for tailored performance
- Grease or oil lubrication flexibility适应 varying operational conditions
- 55*120*31.5 mm specification fits standard rolling mill assemblies seamlessly
- Trusted NSK quality from Japan, backed by a production capacity ensuring steady supply
Especificaciones del Producto
Parámetro
Detalles
Número de modelo
Tipo de Rodamiento
Rodamiento de rodillos cónicos
Diámetro del orificio (d)
15-240 mm Diámetro Exterior (D)
35mm-400mm Ancho (B)
Material
Acero para rodamientos
Dirección de Carga
Rodamiento Radial
Esférico
Rodamientos no alineantes
Separado
Separado
Lubricación
Grasa o Aceite
Clasificación de Precisión
P0 P6 P5 P4 P2
Vibración
Marca registrada
Origen
Japón Código HS
8482200000 Idoneidad de la Aplicación
Industria
Aplicaciones Típicas
Metalurgia del Acero Equipo de molino de laminación
Finding the right roller bearing for rolling mill applications can be a challenge. Mismatched dimensions lead to installation delays, while poor material quality results in premature wear and unexpected downtime. Sourcing from multiple suppliers for different brands only adds complexity to your procurement process. The NSK Roller Bearing HR30311DJ addresses these challenges with precision-engineered features. As part of our comprehensive bearing portfolio, it benefits from ISO 9001 certified production processes and strict quality control. With separated design and radial load capacity, it’s ideally suited for the demanding conditions of rolling mill operations, where consistent performance under heavy loads is critical. This taper roller bearing excels in applications with radial loads and moderate axial loads, typical in rolling mill stands. Its bearing steel construction ensures durability under high temperatures and heavy shock loads, while the non-aligning design maintains stability in rigidly mounted systems. Proper lubrication with grease or oil further extends service life in continuous-operation scenarios. Características clave de ingeniería que impactan la fiabilidad
The HR30311DJ’s separated design allows for easy mounting and dismounting, simplifying maintenance in tight rolling mill spaces. Precision ratings from P0 to P2 ensure dimensional accuracy, reducing vibration and noise during operation. The radial load orientation aligns with the primary force direction in rolling applications, while the 55*120*31.5 mm specification provides a standard footprint compatible with most mill equipment designs. Vibration classes Z1V1 to Z3V3 let you select the right balance of smooth operation for your specific machine requirements. Investing in a quality taper roller bearing like the HR30311DJ reduces long-term costs compared to inferior alternatives. Early bearing failure in rolling mills leads to unplanned downtime, production losses, and potential damage to adjacent components. By meeting strict material and precision standards, this bearing minimizes these risks, contributing to higher equipment availability and lower maintenance expenses over its operational life. Our ISO 9001 certified processes ensure consistent quality, from raw material inspection to final dimensional and hardness testing. We stand behind the HR30311DJ with a manufacturer-backed warranty, covering manufacturing defects for added peace of mind. With access to a wide range of international and domestic brands, we can source bearings according to your exact specifications. Our substantial inventory means prompt availability, reducing lead times for critical replacements. Empaquetado en cartones y palets para un transporte seguro
Disponible en stock para un despacho rápido
Opciones de envío flexibles que incluyen mensajería exprés, aéreo y marítimo
Bajas cantidades mínimas de pedido para apoyar tanto requisitos a pequeña como a gran escala
Whether you need the NSK HR30311DJ specifically or require assistance identifying the right roller bearing for your rolling mill, we’re here to help. Provide us with your model number, dimensions, and quantity requirements, and our team will promptly deliver pricing and availability information to keep your operations running smoothly. Preguntas Frecuentes
Q: ¿Proporcionan otras marcas y modelos de rodamientos además de A: Yes, we offer a comprehensive range of bearings including major international brands and domestic options. We can source and supply bearings according to your specific brand and model requirements. Q: How can I ensure the HR30311DJ is compatible with my rolling mill equipment? A: Provide us with your equipment specifications or existing bearing dimensions (d x D x B), and our technical team will verify compatibility with the HR30311DJ or recommend suitable alternatives. P: ¿Cuál es su política de garantía para los rodamientos?
A: We provide a warranty covering manufacturing defects. The specific terms and duration are detailed in our sales contract, ensuring protection against material or production faults. Q: What is the minimum order quantity for the HR30311DJ? A: Apoyamos cantidades mínimas de pedido bajas, lo que le permite comprar pequeñas cantidades para necesidades de mantenimiento o volúmenes más grandes para requisitos de producción.
Q: How quickly can you ship the HR30311DJ roller bearing? A: The HR30311DJ is typically available from stock, enabling same-day or next-day dispatch. Shipping time depends on your location and chosen delivery method. Q: Can you provide custom (OEM/ODM) bearings for special applications? A: Yes, we support OEM and ODM services, manufacturing bearings according to your specific drawings, dimensions, and performance requirements. Ready to order or need a quote?
HR30311DJ
55*120*31.5 mm
Z1V1 Z2V2 Z3V3
NSK
Struggling with Roller Bearing Reliability in Rolling Mills? The HR30311DJ Makes a Difference
Engineered for Heavy-Duty Rolling Mill Performance
Optimal Performance in High-Load, Continuous-Operation Environments
Why Choosing the Right Roller Bearing Lowers Total Cost
Confidence Through Quality and Supply Chain Reliability
Packaging & Shipping
Get Your HR30311DJ Roller Bearing Quote Today
?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
sales@bearing-supply.com
- Product Name
- NSK Roller Bearing HR30311-30314DJ for Rolling Mill
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Cylindrical Roller 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 |
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.
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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.
The engineering partner advantage
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NSK Roller Bearing HR30311-30314DJ for Rolling Mill
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