Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-508527
3309 B-2ZRTNGC3 NSK Double Row Angular Contact Ball Bearing 45mm x 100mm x 39.7mm
3309 B-2ZRTNGC3 NSK Double Row Angular Contact Ball Bearing
The 3309 B-2ZRTNGC3 is a premium double row angular contact ball bearing from NSK, engineered to deliver exceptional performance in demanding industrial applications. This precision bearing is specifically designed to handle simultaneous radial and axial loads with superior load capacity and reliability, making it ideal for high-speed machinery and heavy-duty equipment requiring robust support and sealed protection.
Key Features:
- Double row angular contact design for increased load capacity and versatility
- 25° contact angle optimized for balanced radial and axial load distribution
- Metal covers on both sides providing excellent protection against contaminants and moisture
- Polyamide cage construction for smooth, reliable operation and minimal friction
- Slightly increased radial clearance for flexibility in various mounting configurations
- Standard version arrangement suitable for general industrial applications
- NSK quality engineering - backed by decades of bearing manufacturing expertise
Specifications:
- Bore Diameter: 45mm
- Outer Diameter: 100mm
- Width: 39.7mm
- Row Type: Double Row
- Contact Angle: 25°
- Cage Material: Polyamide
- Clearance: Slightly increased radial clearance
- Tolerance Class: P0/PN2 (ABEC 1)
- Seal Type: Metal covers on both sides (2Z)
- Material: Standard bearing steel
- Operating Temperature Range: -20°C to +120°C
- Outer Ring: Without flange/groove
- Arrangement: Standard version
- Manufacturer: NSK
- Reference Number: 3309B-2ZRTNGC3
Applications:
This double row angular contact bearing is ideal for gearboxes, electric motors, machine tool spindles, automotive components, industrial pumps, and other heavy-duty equipment where enhanced load capacity and sealed protection are critical. The metal cover design makes it particularly suitable for applications exposed to dust, moisture, or contaminated environments while maintaining excellent high-speed capability. Perfect for precision machinery requiring both combined radial and axial load handling and consistent, long-term performance in challenging operating conditions.
As a premium product from NSK, a world-leading bearing manufacturer, this bearing is manufactured to exacting quality standards and is suitable for industrial applications demanding precision, durability, and reliable performance.

