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NACHI 6018NR Deep Groove Ball Bearings
NACHI 6018NR deep groove ball bearing. 90mm ID x 140mm OD x 24mm width. NR. Chrome steel construction.
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- Chrome steel (AISI 52100) rings and balls for durability and fatigue resistance
- Conforms to ISO dimension standards and interchanges with equivalent series
- Handles both radial and moderate axial loads in either direction
- High-speed capability with low noise and vibration
- Operating temperature range: -25°C to +120°C (standard grease)
- Outer ring snap-ring groove plus supplied snap ring (NR) for positive axial retention
- Ready to Install
- Snap-ring groove for positive axial location without separate locking devices
- Standard CN clearance suits most general-purpose installations
| Brand | NACHI |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6018 |
| Inner Diameter (Bore) | 90 mm |
| Outer Diameter | 140 mm |
| Width | 24 mm |
| Seal Type | NR |
| Material | Chrome Steel (AISI 52100) |
| Clearance | CN |
| Dynamic Load Rating (Cr) | 58000 N (58 kN) |
| Static Load Rating (C₀) | 49500 N |
| Limiting Speed (Grease) | 4800 rpm |
| Limiting Speed (Oil) | 5600 rpm |
| Fillet Radius (r min) | 1.5 mm |
| Weight | 1.13 kg |
| Features & Benefits | Chrome steel (AISI 52100) rings and balls for durability and fatigue resistance Conforms to ISO dimension standards and interchanges with equivalent series Handles both radial and moderate axial loads in either direction High-speed capability with low noise and vibration Operating temperature range: -25°C to +120°C (standard grease) Outer ring snap-ring groove plus supplied snap ring (NR) for positive axial retention Ready to Install Snap-ring groove for positive axial location without separate locking devices Standard CN clearance suits most general-purpose installations |
NACHI 6018NR Deep Groove Ball Bearings
The NACHI 6018NR is a high-quality single-row deep groove ball bearing engineered to deliver reliable performance across a broad spectrum of industrial and commercial applications. With a bore diameter of 90 mm, outer diameter of 140 mm, and a width of 24 mm, this bearing conforms to ISO dimension standards and is a direct interchange for equivalent series bearings from other manufacturers.
Design & Construction
Manufactured by NACHI – one of Japan’s leading bearing producers – the 6018NR is precision-ground from high-carbon chromium bearing steel (AISI 52100 / JIS SUJ2), heat-treated to achieve optimum hardness and fatigue resistance. The deep raceway grooves in both the inner and outer rings enable the bearing to support radial loads as well as moderate axial loads in either direction. Outer ring snap-ring groove plus supplied snap ring (NR) for positive axial retention. The outer ring incorporates a snap-ring groove (and, where applicable, a supplied retaining ring) for simple axial location in housings – eliminating the need for separate locking devices.
Performance
Rated for a basic dynamic load capacity of 58.0 kN and a static load capacity of 49.5 kN, this bearing delivers dependable load-carrying ability and long calculated service life under correct operating conditions. Permissible speeds reach 4,800 rpm with grease lubrication and 5,600 rpm with oil lubrication, making it well suited to high-speed rotating equipment. Supplied with standard CN internal clearance, this bearing is suited to the widest range of general-purpose applications.
Typical Applications
- Electric motors, generators, and alternators
- Pumps, compressors, and blowers
- Conveyor and material-handling systems
- Agricultural and farming equipment
- Power tools and woodworking machinery
- Automotive ancillaries – water pumps, tensioners, idlers
- HVAC fans, air-conditioning units, and refrigeration
- Food and beverage processing machinery
- Gearboxes, reducers, and transmission assemblies
- General industrial and workshop machinery
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