


Nu312 Bearing
1.Product Introduction: Model NU312, with an inner diameter of 60mm, separable inner ring, suitable for medium-sized and medium-speed equipment.
2.Structure Type: The outer ring has double ribs, the inner ring is separable, with a single row of rollers + cage, and it is open - type.
3.Size Range: Inner diameter 60mm, outer diameter 130mm, width 31mm.
4.Material: Inner ring / outer ring / rollers: GCr15/GCR15SIMN/20Cr2Ni4A, cage: stamped steel / brass.
5.Precision: P0 level, precision version is P6/P5 level.
6.Application Fields: Medium-sized electric motors, reducers, machine tool spindles (non-positioning end), automobile transmission systems.
7.Key Inspection Items: Radial clearance (0.015 - 0.04mm), dimensional accuracy, roller integrity.
Product Description
NU312 Bearing: High-Performance Cylindrical Roller Bearing for Industrial Excellence Optimized for Heavy Loads & Harsh Environments
The NU312 cylindrical roller bearing is engineered to deliver unmatched durability in demanding industrial applications. With an inner diameter of 60mm, outer diameter of 130mm, and width of 31mm, this separable inner ring bearing excels in medium-sized equipment like motors, reducers, and automotive systems. At LUOYANG INNO BEARING, we combine 30+ years of manufacturing expertise with advanced heat treatment and precision grinding to ensure your NU312 bearings withstand extreme temperatures (-30°C to 150°C), shock loads, and contamination-prone environments.
Key Specs: Dynamic Load 123 kN | Static Load 89 kN | P0-P5 Precision | Material: GCr15 Steel
product-750-750
Technical Specifications & Features Precision-Built for Reliability
Dimensions: 60mm (ID) x 130mm (OD) x 31mm (Width)
Material: Inner/outer rings & rollers: High-purity GCr15 steel; Cage options: Stamped steel or brass.
Precision: Standard P0 grade; available in P6/P5 for high-speed applications.
Radial Clearance: 0.015–0.04mm (customizable upon request).
Customization Options
Seals: Add rubber or hybrid ceramic seals for IP66/69K dust/moisture resistance. Cages: Upgrade to brass for higher rigidity in mining or agriculture. Coatings: Zinc-nickel plating for corrosive environments (e.g., coastal wind turbines). product-1256-742
Why Choose Us? 1. 30+ Years of Industrial Expertise
Our in-house R&D team tailors products for sector-specific challenges:
Mining: ATEX-compliant variants with 15% higher shock load tolerance.
Wind Energy: GL Wind-certified units with 50,000+ hour L10 lifespan under 20% overload.
Agriculture: NSF H1 grease-packed bearings for harvesters in dusty conditions.
2. Rigorous Quality Assurance
Every NU312 bearing undergoes:
Material purity checks (99.95% steel)
3-stage inspection (dimensional accuracy, vibration testing, 72-hour endurance runs)
100% defect-free certification
3. Fast Global Delivery
Standard NU312: Shipped within 48 hours from EU/NA/Asia warehouses. Customized Orders: 30% faster turnaround vs. industry average (e.g., modified seals in 7 days). product-1406-300
Application Scenarios Where products Excel
Mining Equipment: Conveyor pulleys & crushers requiring IP69K sealing. Wind Turbines: Main shaft assemblies with GL Wind compliance. Agricultural Machinery: Harvesters needing NSF H1 grease compatibility. Port Cranes: Heavy-load trolley systems (up to 123 kN dynamic load). Certifications & Compliance Our products meet:
ISO 9001 (Quality Management) ISO 14001 (Environmental Standards) CE, ATEX, and AGMA certifications FAQs 1. Can the product handle high-temperature environments?
Yes! Advanced heat treatment ensures stable performance from -30°C to 150°C.
2. Do you provide products with custom dimensions?
Absolutely. We modify inner/outer diameters and widths within 72 hours for urgent retrofits.
3. How do you guarantee 48-hour delivery?
We stock 1,000+ standard NU312 units globally and partner with DHL/FedEx for priority shipping.
4. What technical support do you offer?
Our engineers provide IoT integration guidance, predictive maintenance plans, and 24/7 troubleshooting.
Why Partner With Us? End-to-End Solutions: From bearing selection to legacy equipment upgrades. Volume Discounts: Competitive pricing for 5K+ unit orders. Lifetime Support: Real-time performance monitoring via our IoT platform. Contact Us Ready to Upgrade Your Equipment with NU312 Bearing?
📧 Email our engineering team at [email protected] for a customized NU312 quote or technical consultation.
LUOYANG INNO BEARING CO., LTD – Powering Industries Since 1993

Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 60mm (ID) x 130mm (OD) x 31mm (Width) |
| Load Capacity | Dynamic Load 123 kN | Static Load 89 kN |
| Material & Precision | High-purity GCr15 bearing steel; Standard P0 grade (P6/P5 available) |
| Radial Clearance | 0.015–0.04mm (customizable roller bearing options) |
Key Advantages
- Precision-Built: Advanced heat treatment ensures stable NU312 cylindrical roller bearing operation across extreme temperatures.
- Customization Options: Add rubber seals for IP66/69K dust/moisture protection or upgrade to brass bearing cages for higher rigidity.
- Rapid Logistics: Standard NU312 units are stocked globally for immediate 48-hour dispatch.

Industry-Proven Applications
- Mining Equipment: Conveyor pulleys and crushers requiring IP69K sealing and shock-resistant bearing structures.
- Wind Turbines: Main shaft assemblies with GL Wind compliance and extended roller lifespan under heavy loads.
- Agricultural Machinery: Harvesters needing NSF H1 grease compatibility for dusty operating conditions.
- Port Cranes: Heavy-load trolley systems capable of handling up to 123 kN dynamic bearing load capacity.
Quality & Support
Every bearing undergoes 99.95% steel purity checks, dimensional accuracy screenings, and 72-hour endurance runs. We provide complete lifecycle support including predictive maintenance and IoT integration.

FAQs
Q: Can the NU312 bearing handle high-temperature environments?
A: Yes! Advanced heat treatment ensures stable bearing performance from -30°C to 150°C.
Q: Do you provide cylindrical roller bearing products with custom dimensions?
A: Absolutely. We modify inner/outer diameters and widths within 72 hours for urgent retrofits.
Q: How do you guarantee 48-hour delivery for this roller bearing?
A: We stock 1,000+ standard NU312 units globally and partner with priority shipping carriers.
Contact Us
Ready to Upgrade Your Equipment with NU312 Bearing?
Contact our engineering team to request customized quotes or technical consultations.
📩 Contact Our Engineers Today
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