Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
NSK NUP2221EM NUP2222EM NUP2224EM Cylindrical Roller Bearing
Ensure smooth, reliable machinery operation with precision-engineered NSK Cylindrical Roller Bearing solutions. Designed to handle heavy radial loads while maintaining consistent performance, these bearings minimize downtime and extend equipment lifespan in high-stress industrial applications.
- Available in NUP2221EM, NUP2222EM, and NUP2224EM variants to match your specific shaft diameter requirements
- Optimized internal geometry reduces friction and heat buildup, ideal for continuous-duty operations
- Robust EM-series design ensures enhanced load distribution for improved torque transmission efficiency
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Product Specifications
| Parameter | Details |
|---|
Application Suitability
| Industry | Typical Applications |
|---|---|
| Engineering Machinery | Hydraulic cylinder pivot points, gearbox shafts |
| Steel Metallurgy | Rolling mill work rolls, conveyor systems |
| Automation Equipment | Robotic arm joints, precision linear guides |
| Wind Energy | Generator main shafts, pitch control mechanisms |
Finding the Right NSK NUP2221EM, NUP2222EM, NUP2224EM Cylindrical Roller Bearing for Your Equipment?
Selecting the correct cylindrical roller bearing often means sifting through countless models across brands, only to face compatibility issues or long lead times. Many buyers struggle with identifying precise replacements when original equipment bearings fail, leading to costly production delays.
Engineered for Heavy-Duty Performance and Easy Sourcing
The NSK NUP2221EM, NUP2222EM, and NUP2224EM cylindrical roller bearings address these challenges with dimensions following international standards, ensuring interchangeability with major brands. As a supplier with ISO 9001-certified quality control, we maintain extensive inventory of these models, supporting quick turnaround for urgent maintenance needs in industries like steel rolling mills and wind turbine installations.
Optimized for High-Radial Load Applications
These cylindrical roller bearings excel in applications with heavy radial loads and moderate axial displacement, such as conveyor drive shafts and gearbox pinions. Their design accommodates operating temperatures from -30°C to 120°C, making them suitable for both indoor industrial environments and outdoor machinery exposed to temperature fluctuations.
Key Engineering Features for Reliable Operation
The NUP-series cylindrical roller bearings feature a double-row design that enhances radial load capacity compared to single-row alternatives. Precision-machined raceways and rollers ensure minimal vibration during high-speed rotation, critical for maintaining accuracy in automated production lines. The separable inner ring design simplifies installation and replacement, reducing downtime during maintenance procedures. Surface hardness of HRC 58-62 on raceways and rollers provides excellent wear resistance, extending service life in abrasive environments.
Total Cost of Ownership: Why Quality Matters
Choosing a precision cylindrical roller bearing directly impacts equipment reliability and maintenance costs. Bearings with substandard dimensional accuracy can cause shaft misalignment, leading to premature wear of adjacent components and unplanned downtime. The NSK NUP2221EM, NUP2222EM, and NUP2224EM models meet strict manufacturing tolerances, reducing the risk of early failure and minimizing long-term operational expenses. Properly selected bearings following ISO 281 load-life calculations can lower total cost of ownership by up to 30% compared to inferior alternatives.
Quality You Can Rely On
Our cylindrical roller bearings undergo comprehensive quality checks, including raw material verification, dimensional measurement, and hardness testing at multiple production stages. All products come with a standard质保期 covering manufacturing defects, with clear procedures for returns and replacements. We source directly from established production facilities and maintain traceability records for every batch. Whether you need standard NSK models or equivalents from other international brands, our procurement network ensures consistent quality across all supplied bearings.
Packaging & Shipping
- Standard industrial packaging with anti-rust coating and protective sleeves
- Available from stock for immediate dispatch
- Flexible shipping options including express courier, air freight, and sea transport
- Low minimum order quantity, suitable for both maintenance repairs and bulk production needs
Get Your Cylindrical Roller Bearing Quote Today
Provide your required model (NUP2221EM, NUP2222EM, NUP2224EM), quantity, and delivery location, and our team will prepare a detailed quote with current availability. We also handle custom requirements and can source equivalent cylindrical roller bearings from other brands to match your specifications.
Frequently Asked Questions
Q: Can you supply cylindrical roller bearings from other brands besides NSK?
A: Yes, we support procurement of cylindrical roller bearings across all major international and domestic brands, including SKF, NTN, Koyo, and FAG, according to your specific requirements.
Q: How do I confirm if these NUP-series bearings fit my equipment?
A: Provide the original bearing part number or key dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with your application.
Q: What is your质保 policy for these cylindrical roller bearings?
A: We provide a standard质保期 covering manufacturing defects. Specific terms are detailed in each sales contract, with clear procedures for product returns and replacements.
Q: What is the minimum order quantity for these NSK models?
A: We offer low minimum order quantities, including single-unit purchases for emergency maintenance, with volume discounts available for bulk orders.
Q: How quickly can you ship the NUP2221EM, NUP2222EM, or NUP2224EM bearings?
A: Stock items are dispatched within 24 hours of order confirmation. Shipping time depends on the selected method, with express options available for urgent requirements.
Q: Do you offer OEM/ODM services for cylindrical roller bearings?
A: Yes, we support custom bearing production according to client-provided drawings, specifications, or sample parts for specialized applications.
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.
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Product Summary
- Product Name
- NSK NUP2221EM NUP2222EM NUP2224EM Cylindrical Roller Bearing
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
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 |
Custom Specifications Available
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.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
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.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
NSK NUP2221EM NUP2222EM NUP2224EM Cylindrical Roller Bearing
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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