NNCF3681182-2RS Backing Bearing
Technical Specifications
| Basic Information | ||
|---|---|---|
| Design No. (Model) | 5.2 | Design identification number or model code |
| Weight (Mass) | 135 kg | Mass (M) of the bearing, measured in kilograms (kg) |
| Boundary Dimensions (mm) | ||
| d (Inner Diameter) | 180 mm | Internal diameter of inner ring (ISO standard symbol: d) |
| D (Outer Diameter) | 406.42 mm | External diameter of outer ring (ISO standard symbol: D) |
| B (Width) | 182 mm | Overall width of bearing (ISO standard symbol: B) |
| C (Effective Width) | 179 mm | Effective width of roller set (ISO standard symbol: C) |
| H (Height) | 113.2 mm | Overall height of bearing assembly |
| d1 (Inner Step Diameter) | mm | Diameter of inner ring step for axial location |
| D1 (Outer Step Diameter) | mm | Diameter of outer ring step for housing fit |
| E (Mounting Dimension) | 227 mm | Effective bearing center distance for mounting |
| F (Positioning Dimension) | 299 mm | Axial positioning dimension for bearing seats |
| rmin (Chamfer Radius) | 1.5 mm | Minimum fillet radius for chamfered edges |
| K (Roller Factor) | 8 | Factor for effective roller length calculation |
| N* (Roller Quantity) | Number of rollers in bearing assembly | |
| Basic Load Rating (kN) | ||
| Cr (Dynamic Load) | 2080 kN | Basic dynamic load rating (ISO 281) |
| Cor (Static Load) | 3600 kN | Basic static load rating (ISO 281) |
| Cr (Roller) | 1350 kN | Dynamic load rating for roller elements |
| Cor (Roller) | 2500 kN | Static load rating for roller elements |
| Cr (Radial Max) | 920 kN | Maximum radial dynamic load capacity |
| Cor (Radial Max) | 1310 kN | Maximum radial static load capacity |
Superior Material & Durability
Manufactured from premium G20Cr2Ni4A carburized steel with advanced heat treatment:
- Carburized layer depth ≥2.0mm
- Surface hardness HRC60-64
- Core toughness HRC30-40
- 40% longer service life
P4-Grade Precision Engineering
Meets ISO P4/ABEC 9 standards:
- Dimensional tolerance ±2μm
- Roundness error ≤0.5μm
- Cylindricity error ≤1μm
- Surface roughness Ra≤0.025μm
- 30% reduced friction
Rigorous Quality Control
- ISO 9001 certified manufacturing
- Full dimensional inspection reports
- Hardness gradient testing
- Dynamic performance evaluation
- 100% factory inspection
Typical Applications
Metal Processing & Steel Industry
- Hot/cold rolling mill support bearings
- Ladle turret bearings
- Coiler/straightener machine bearings
Mining Equipment
- Crusher bearings
- Ball mill bearings
- Mining drill bearings
Construction Machinery
- Excavator slewing bearings
- Crane bearings
- Port machinery bearings
Power Generation
- Industrial turbine bearings
- Wind turbine gearbox bearings
- Hydroelectric generator bearings
Main Dimensions
180mm × 406.42mm × 182mm
Bearing Type
Precision Rating
P0 (Standard) / P6 / P5 / P4 (Higher precision for demanding applications)
Cage
Material
- GCr15 Bearing Steel (Industry-standard for high load & fatigue resistance)
- GCr15SiMn
- GCr18Mo
- G20Cr2Ni4A
Clearance
C3 (standard), customizable to C0/C2/C4/C5
Brand
WJY / OEM Available
Origin
Quality Standard
Product Description
NNCF Series Backing Bearing NNCF3681182-2RS. NNCF series backing bearing, with its own structural and performance features. Inner diameter: 180mm, inner diameter within 100 – 200mm, suitable for medium – sized mechanical equipment with corresponding installation space requirements. Precision grade: precision grade P4, ensuring high – accuracy rotational performance for applications requiring strict running accuracy. Material: made of G20Cr2Ni4A material, featuring excellent wear resistance, toughness and fatigue strength, suitable for harsh working conditions. It can provide reliable backing support in relevant mechanical equipment, ensuring stable operation under corresponding loads and working conditions. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
Related Products
FAQ
Our bearings come with a 12-month warranty from the date of delivery. This warranty covers any manufacturing defects under normal operating conditions. For specific applications with extreme conditions, we can provide extended warranty options upon request.
For standard models that are in stock, we can ship within 3-5 working days after receiving payment. For standard models not in stock, lead time is typically 2-3 weeks.
For customized spherical roller bearings, lead time depends on the complexity of customization and quantity, usually ranging from 4-8 weeks. We can provide a more accurate timeline after evaluating your specific requirements.
We accept various payment terms including:
- T/T (Telegraphic Transfer): 30% deposit, 70% before shipment
- L/C (Letter of Credit): Irrevocable L/C at sight
- Western Union for small orders
- Negotiable terms for long-term customers
Yes, we provide comprehensive technical support including:
- Installation guidelines and recommendations
- Lubrication selection advice
- Maintenance schedules and procedures
- Online technical consultation via email and WhatsApp
- On-site technical support can be arranged for large projects (additional fees may apply)
Yes, we specialize in producing non-standard and customized spherical roller bearings. We can manufacture according to your drawings, samples, or specific technical requirements. Our engineering team will evaluate your requirements and provide a detailed quotation including design confirmation, material selection, and production timeline.
We offer flexible shipping options to meet your needs:
- Ocean Freight: Most economical for large orders and full container loads
- Land Transport: Suitable for regional deliveries and smaller shipments
Delivery Time:
- Standard bearings: 3-5 days for in-stock items
- Custom/OEM orders: 20-35 days for production and delivery
- Exact timing depends on order quantity, customization, and destination
Contact our sales team for specific shipping quotes and delivery estimates based on your location and requirements.
Our bearing pricing is influenced by several key factors:
- Precision Grade: P0 (Standard), P6, P5, or P4 precision levels
- Raw Materials: GCr15, GCr15SiMn, GCr18Mo, or other specialty steels
- Market Factors: Raw material costs and market demand
- Order Quantity: Volume discounts available for larger orders
- Customization: Special features, coatings, or modifications
For accurate pricing, we provide customized quotes based on your specific requirements. Please submit an inquiry with your needed specifications, quantities, and any special requirements for a detailed quotation.