Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-505537
7318 BW NSK Single Row Angular Contact Ball Bearing 90mm x 190mm x 43mm
The 7318 BW NSK Single Row Angular Contact Ball Bearing is a high-performance precision bearing engineered for demanding applications requiring combined radial and axial load capacity. This single row configuration delivers reliable performance in high-speed operations with excellent load-carrying capabilities.
Design & Function
Angular contact ball bearings feature angularly displaced raceways in the inner and outer rings, enabling them to accommodate combined loads—both radial and axial forces acting simultaneously. The 7318 BW's single row design makes it an ideal choice for applications where axial loads are primarily unidirectional.
Key design advantages include:
- 40-degree contact angle optimized for balanced radial and axial load capacity
- High-speed capability with excellent precision performance
- Rigid bearing arrangement with outstanding stiffness
- Compact design suitable for space-constrained installations
- Open bearing design allowing for easy lubrication management
Specifications
- Bore Diameter: 90mm
- Outer Diameter: 190mm
- Width: 43mm
- Bearing Type: Single Row Angular Contact
- Manufacturer: NSK
- Contact Angle: 40°
- Cage Material: Steel
- Seal Type: Open (None)
- Radial Clearance: Normal
- Tolerance Class: P0/PN2 (ABEC 1)
- Material: Standard bearing steel
- Operating Temperature Range: -20°C to +150°C
- Outer Ring: Without flange/groove
Applications
The 7318 BW is ideal for gearboxes, machine tools, pumps, compressors, electric motors, and other industrial equipment where precision, reliability, and combined load capacity are essential. Its robust construction and proven NSK quality make it suitable for heavy-duty applications requiring consistent performance under demanding conditions.

