Customization:
With stainless steel outer and inner rings combined with high-grade steel rollers, you can ensure exceptional durability and corrosion resistance in harsh industrial environments*.
With an open sealing design, you can customize seals to suit specific environmental conditions (e.g., high-temperature or high-moisture environments).
With a P0 precision rating, you can achieve high accuracy and reliability in high-load applications, minimizing misalignment risks.
Designed for mini hydroelectric generators and heavy machinery, you can handle high radial loads while supporting moderate thrust loads for versatile industrial use.
With compliance to ISO precision standards (P0 rating) and industrial durability requirements, you can ensure reliable performance in demanding
The Single Row Cylindrical Roller Bearing NU/NN series (e.g., NU1014, NU1020) is engineered for high radial load applications like mini hydroelectric generators. Designed with precision and durability, these bearings feature a stainless steel outer/inner ring, high-grade steel rollers, and open sealing for clean environments.
Feature | Specification | Application Scenario |
---|---|---|
Material Composition | Outer/Inner Ring: Stainless Steel Rollers: High-Grade Steel | Corrosion-resistant industrial machinery |
Cage Material | Brass/Nylon | High-load (brass) or chemical resistance (nylon) |
Precision Rating | P0 (Standard) | General industrial equipment requiring moderate precision |
Sealing Type | Open | Clean environments with minimal contaminants |
Structure | Single Row Cylindrical | High radial load applications (e.g., generators, conveyors) |
Vibration Level | V1 (Low) | Smooth operation in precision machinery |
Adjust cage material (brass for high-load stability or nylon for chemical resistance) or request sealed variants for harsh environments. Tailor sizes to fit specific generator requirements.
With stainless steel construction, you can ensure durability in corrosive environments. The open design simplifies maintenance while maintaining efficiency.
Parameter | Base Model | Advanced Model | Pro Model |
---|---|---|---|
Load Capacity | Industry Standard | +15% over baseline | +30% over baseline* |
Precision | P0 | P6 (enhanced) | P4 (premium) |
Vibration | V1 | V0 (reduced) | V0+ (ultra-smooth) |
Material Grade | Stainless Steel | Stainless Steel + Ni | Aerospace-grade steel |
Technical Breakthroughs:
Version Selection Guide:
*Pro Model load capacity exceeds industry benchmarks by 30% due to optimized roller geometry and material reinforcement.
Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
---|---|---|---|---|
Material Composition | Corrosion-prone industrial environments | Stainless steel outer/inner rings (ASTM A276) ▲▲ vs Carbon steel (Industry Standard) | Enhanced corrosion resistance, durability in harsh conditions | Higher cost compared to standard steel bearings |
Load Capacity | Heavy machinery, presses | Radial load: ≥150 kN (ISO 281) ▲ vs Industry Standard (≥100 kN) | Supports high radial loads for robust applications | Requires robust mounting structures for optimal performance |
Sealing Type | Dusty/moist environments | Open (Industry Standard) | Shielded (Our Advanced) ▲▲ | Base: Cost-effective for clean environments Advanced: Superior contamination protection |
Cage Material | High-speed applications | Brass/Nylon cage (ISO 15) ▲ vs Steel cage (Industry Standard) | Reduced friction, lighter weight for smoother operation | Nylon may degrade in extreme temperatures |
Precision Rating | High-precision machinery | ISO P0 precision (≤5 µm run-out) ▲ vs Industry Standard (P6: ≤9 µm) | Minimal run-out ensures smoother operation and reduced wear | Higher manufacturing cost |
Vibration Level | Noise-sensitive environments | ISO V1 vibration (≤1.8 mm/s) ▲ vs Industry Standard (V2: ≤2.5 mm/s) | Quieter operation (comparable to a whisper) | Requires precise installation to maintain low vibration |
⭐⭐⭐⭐⭐ James Whitaker - Industrial Maintenance Engineer
"We installed the NU1020 model in our small conveyor system back in February 2025, and after 7 months of continuous operation, there’s zero sign of wear. The stainless steel rings and brass cage have held up exceptionally well under heavy radial loads. Vibration is minimal—our technicians noted it’s one of the smoothest-running bearings we’ve used at this price point. Precision P0 rating makes alignment easy during installation. Highly recommend for industrial setups with clean operating environments."Purchase Date: February 2025 | Usage Period: 7 months
⭐⭐⭐⭐⭐ Anika Patel - Mini Hydroelectric Technician
"I’ve been servicing mini hydro generators for six years, and these NU series bearings are a game-changer. We replaced older carbon steel units with the NU1014 stainless steel model in April 2024. It's now been 8 months in a high-moisture environment, and no corrosion—none. The open seal allows for easy greasing, and the hardened rollers handle constant radial stress without issue. We’ve already ordered 12 more units for other sites. Perfect fit, excellent durability."Purchase Date: April 2024 | Usage Period: 8 months
⭐⭐⭐⭐☆ Daniel Reeves - DIY Machinist & Workshop Owner
"Bought the NU1015 for my custom-built lathe setup in November 2024. After 5 months of intermittent use, performance has been solid. I went with the nylon cage version for lighter weight and lower cost—ideal for my low-contamination garage workshop. Runs quietly and stays cool even under moderate load. Only reason I’m not giving 5 stars is that the open design means I have to be diligent about dust protection. But that’s expected and mentioned in the specs. Great value for home-scale precision work."Purchase Date: November 2024 | Usage Period: 5 months
⭐⭐⭐⭐⭐ Marcus Lin - Operations Manager, Small-Scale Manufacturing Plant
"We run multiple small machines that require reliable radial load support. After testing several models, we chose the Advanced Model (P6 precision, brass cage) in January 2025. Now at 6 months in, vibration levels are consistently low (V0 as promised), and we’ve had zero bearing failures. The enhanced corrosion resistance is noticeable—especially near our cooling stations where humidity is high. Custom sizing ensured perfect fitment. These outperform generic brands we used before. Will consider the Pro model for our turbine line next."Purchase Date: January 2025 | Usage Period: 6 months
⭐⭐⭐⭐☆ Elena Torres - Maintenance Supervisor, Food Processing Facility
"Installed the NU1024 in a conveyor system handling packaging in December 2024. It’s been 4 months now, and so far, no issues. The FDA-grade stainless steel was a key factor in our selection due to hygiene standards. Open seal requires regular lubrication, but that’s manageable with our maintenance schedule. One minor issue: nylon cage shows slight wear under prolonged heat exposure, so I’d suggest brass for hotter zones. Overall, a dependable, compliant solution for food-grade machinery."Purchase Date: December 2024 | Usage Period: 4 months
Average Rating: 4.7/5 ⭐ (89 Reviews)
Dr. Richard Hale - Mechanical Systems Consultant
"For applications involving high radial loads and moderate thrust forces—especially in damp or corrosive environments—I consistently recommend cylindrical roller bearings with stainless steel construction. The NU/NN series stands out due to its P0–P4 precision scalability, V1–V0+ vibration control, and material integrity. It’s particularly well-suited for mini hydroelectric systems where reliability and longevity are non-negotiable."
Linda Chavez - Senior Maintenance Analyst, Energy Sector
"After auditing bearing performance across 15 small hydropower sites, I can confirm that open-seal stainless units with proper lubrication schedules outlast sealed carbon steel alternatives by up to 40%. The customizable cage materials and ISO-compliant precision of this NU series make it a smart, future-proof investment for both industrial and small-scale renewable energy applications."
Posted: 2 days ago
"Using NU1020 in a 24/7 mini hydro setup. Zero downtime related to bearing failure. Smooth operation, easy to service. Exactly what we needed."
Posted: 1 week ago
"Built a precision milling rig and needed tight tolerances. The P6 Advanced Model delivered. Minimal run-out, ultra-smooth rotation. Worth the upgrade."
Posted: 3 weeks ago
"Works great in clean conditions. Just remember: open seal means keep dust out. Otherwise, flawless performance so far."
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