Product Overview
The NU210 bearing is a single-row cylindrical roller bearing from the NU series, designed to accommodate heavy radial loads at high operating speeds. Its separable construction — a removable inner ring and a two-ribbed outer ring — permits straightforward mounting and facilitates maintenance in demanding industrial environments. The machined brass cage (EM suffix) ensures precise roller guidance, reduces frictional heat, and extends service life under continuous operation. Manufactured from through-hardened GCr15 bearing steel and finished to ISO tolerance standards, this NU210 bearing delivers consistent performance in applications where radial rigidity and long-term reliability are essential.Technical Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Boundary Dimensions | |||
| Bore diameter | d | 50 | mm |
| Outside diameter | D | 90 | mm |
| Width | B | 20 | mm |
| Raceway diameter of inner ring | FW | 59.5 | mm |
| Chamfer dimension | r (min.) | 1.1 | mm |
| Chamfer dimension | r1 (min.) | 1.1 | mm |
| Properties | |||
| Bearing Material | Outer Ring / Inner Ring / Cylindrical roller | GCr15 Bearing Steel | — |
| Cage Material | Cage | M: Machined brass cage | — |
| Radial Internal Clearance | ISO | CN | — |
| Tolerance | ISO | NORMAL | — |
| Basic Load Ratings | |||
| Basic dynamic load rating | Cr | 80000 | N |
| Basic static load rating | C0r | 71000 | N |
| Speeds | |||
| Grease lubrication | Grease | 6300 | rpm |
| Oil-bath lubrication | Oil | 7500 | rpm |
| Mass | |||
| Mass | (approx.) | 0.551 | kg |
This NU210 bearing is manufactured to ISO 492 dimensional and running accuracy standards, ensuring global interchangeability with NU series bearings from major manufacturers.
Features and Benefits
- Separable NU Design — Individual component replacement reduces maintenance downtime and lowers total cost of ownership for cylindrical roller bearing applications.
- Machined Brass Cage (EM) — The EM suffix delivers superior roller guidance at high speeds, extending bearing service life in continuous operation across machine tool and gear drive applications.
- GCr15 Bearing Steel — Through-hardened chromium steel construction provides excellent wear resistance under heavy radial loads, ensuring long-term dimensional stability.
- CN Radial Clearance — Suitable for standard interference fit applications, offering broad compatibility with common shaft and housing fits in industrial machinery.
- ISO P0 (Normal) Tolerance — Dimensional accuracy meeting international standards, making the NU210 bearing interchangeable with SKF NU210, FAG NU210, and other major brand equivalents globally.
Applications
Find more cylindrical roller bearings in our Cylindrical Roller Bearings category.Machine Tools
The NU210 bearing’s high-speed capability and radial rigidity make it suitable for machine tool spindles and feed drives requiring precise shaft positioning under load. The NU 210 EM is a preferred choice for CNC applications requiring reliable radial load support.- CNC lathe spindles
- Milling machine headstocks
- Grinding machine workheads
Industrial Gear Drives
The separable NU design facilitates gearbox assembly and maintenance where the inner ring must be press-fit on the shaft while the outer ring is mounted in the housing. This configuration simplifies industrial gearbox service intervals.- Helical and spur gear reducers
- Industrial gearboxes
- Pump drives
General Machinery
A versatile radial bearing choice for rotating equipment requiring low friction and long maintenance intervals, the NU210 bearing performs reliably in electric motors, conveyors, and fan systems.- Electric motors
- Conveyor systems
- Fans and blowers
Quality and Manufacturing
Each NU210 bearing is manufactured from GCr15 bearing steel (equivalent to AISI 52100/100Cr6), through-hardened to established bearing steel standards. The bearing undergoes dimensional and running accuracy inspection per ISO 492 tolerance specifications. Radial internal clearance meets ISO 5753 CN classification. The machined brass cage is produced to consistent dimensional tolerances for reliable roller guidance throughout the bearing’s service life.Why Choose Us for NU210 Bearing
At Talos Bearing, we specialize in NU-series cylindrical roller bearings — from the NU210 EM to the full range of ISO-standard sizes. Every NU 210 EM we supply is sourced from ISO 9001-certified production lines and backed by lot-level traceability, material certification, and application engineering support tailored to high-speed radial load applications.- Genuine EM Machined Brass Cage – Verified Per Batch — The EM suffix demands a machined brass cage for superior roller guidance, reduced friction, and higher limiting speeds compared to stamped steel. We inspect each production batch to guarantee authentic EM-spec brass — non-conforming lots are rejected before shipment.
- Separable NU Design Expertise — The separable inner ring simplifies mounting, maintenance, and component replacement. Our engineering team provides free guidance on fitment tolerances, shaft/housing fits, and internal clearance selection (C2/C3/C4) for your specific application.
- High-Speed Radial Performance — Rated at 6,300 rpm (grease) and 7,500 rpm (oil) with through-hardened GCr15 bearing steel. We support application-specific speed and load optimization for machine tool spindles, gear drives, and industrial machinery.
- Global Interchangeability & Cross-Reference — Manufactured to ISO 492 and ISO 15 dimensional standards, the NU 210 EM is directly interchangeable with SKF NU210, FAG NU210, NSK NU210, and NTN NU210 equivalents. Same fit, same performance — at factory-direct pricing.
- Reliable Global Logistics with Flexible Terms — 15–30 working day lead time from order. Samples available (cost refundable on bulk orders). FOB Shanghai, CIF main ports worldwide, or DDP term. Single samples to full container loads accommodated.
