Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Mining Machinery | Mining equipment components requiring high hardness and axial load capacity |
NN3019 TN9/SP Double Row Cylindrical Roller Bearing: Solving Mining Machinery Downtime Issues
Mining operations face critical challenges with bearing failures—premature wear from rock dust, unexpected downtime due to poor load handling, and difficulty finding reliable replacements for specialized equipment. When your conveyor systems or crushers stop working, every minute of delay impacts production schedules and profitability.
Engineered for Heavy-Duty Mining Environments
The NN3019 TN9/SP double row cylindrical roller bearing addresses these challenges with its 60-64 HRC hardness rating, ensuring resistance to abrasion and fatigue in harsh mining conditions. Our ISO 9001 certified production processes guarantee consistent quality, while our extensive inventory of bearings—including this high hardness cylindrical roller bearing—supports same-day shipping for urgent replacement needs.
Optimal Performance in Axial Load Applications
Designed as a separated, non-aligning bearing, this double row cylindrical roller bearing excels in applications with high axial loads and moderate radial forces common in mining machinery. Its brass or steel cage options provide stability at varying speeds, while clearance grades (C0-C5) allow customization to specific operating conditions, from tight tolerance crushers to heavy-duty conveyors.
Key Engineering Features for Reliability
The bearing’s 60-64 HRC surface hardness—achieved through precision heat treatment—directly translates to extended service life by minimizing wear under heavy loads. The separated design enables easy mounting and dismounting, reducing maintenance time during equipment overhauls. Vibration grades Z1V1 to Z3V3 ensure smooth operation, critical for reducing noise and preventing secondary damage to adjacent components in mining equipment.
Total Cost of Ownership: Why Quality Matters
Choosing a low-quality mining machinery bearing may save upfront costs, but the hidden expenses of frequent replacements, unplanned downtime, and potential equipment damage far outweigh initial savings. This NN3019 TN9/SP bearing’s robust construction aligns with ISO 281 fatigue life standards, reducing the likelihood of premature failure. Our commitment to supplying bearings that meet original equipment specifications ensures compatibility and performance, lowering your total cost of ownership over time.
Quality You Can Rely On
All our bearings undergo rigorous dimensional, hardness, and surface finish testing to meet industry standards. We provide a warranty against manufacturing defects, with clear traceability of materials and production batches. Our global network allows us to source and supply not just this NN3019 TN9/SP bearing, but a comprehensive range of bearings from leading international and domestic brands, ensuring you have a single reliable supplier for all your mining equipment needs.
Packaging & Shipping
- Packaged in carton pallet for secure transportation
- Spot inventory available for same-day shipping on in-stock items
- Flexible logistics options including express courier, air freight, and sea freight
- Low minimum order quantity supported, accommodating both small replacements and large-scale maintenance projects
Get Your NN3019 TN9/SP Bearing Quote Today
Whether you need a single replacement or bulk order for your mining machinery, we can provide competitive pricing and fast delivery. Share your exact requirements—including quantity and delivery location—and our technical team will confirm availability and assist with any compatibility questions.
Frequently Asked Questions
Q: Do you supply bearings from other brands or models?
A: Yes, we support procurement of bearings across all major international and domestic brands, and can source specific models according to your requirements.
Q: How can I confirm if this NN3019 TN9/SP bearing fits my equipment?
A: Provide your equipment make, model, or existing bearing dimensions (bore, outer diameter, width), and our technical team will verify compatibility.
Q: What is your warranty policy for this bearing?
A: We offer a warranty against manufacturing defects. Specific terms are detailed in our sales contract, typically covering replacement or refund for verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including single units, to support both emergency repairs and planned maintenance.
Q: How quickly can you ship the NN3019 TN9/SP bearing?
A: In-stock bearings are shipped the same day for orders placed before cutoff time. For out-of-stock items, lead times vary by brand and model.
Q: Do you offer custom bearing solutions (OEM/ODM)?
A: Yes, we support custom bearing manufacturing according to provided drawings, specifications, or samples 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.







