Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-508546
3306 BTNGC3 NSK Double Row Angular Contact Ball Bearing 30mm x 72mm x 30.2mm
The 3306 BTNGC3 NSK Double Row Angular Contact Ball Bearing is a precision bearing designed for applications requiring simultaneous radial and axial load capacity. This open bearing configuration delivers reliable performance in demanding industrial environments.
Product Overview:
Double row angular contact ball bearings feature raceways in the inner and outer rings that are angularly displaced with respect to each other. This configuration enables exceptional load handling capabilities in both directions, providing stiff bearing arrangements and the ability to accommodate tilting moments. The 40-degree contact angle ensures optimal performance for combined loading conditions.
Key Features:
- Double Row Design: Accommodates radial and axial loads in both directions
- 40-Degree Contact Angle: Optimized geometry for superior load distribution and performance
- Low Axial Clearance: Available in O-arrangement and X-arrangement configurations for precise axial control
- Polyamide Cage: Lightweight and durable cage material ensuring consistent performance and reduced friction
- Slightly Increased Radial Clearance: Accommodates thermal expansion in elevated temperature applications
- Open Bearing Design: Allows for custom lubrication strategies and maintenance access
- NSK Quality: From a leading global bearing manufacturer known for precision engineering and reliability
Technical Specifications:
- Bore Diameter: 30mm
- Outer Diameter: 72mm
- Width: 30.2mm
- Material: Standard bearing steel
- Tolerance Class: P0/PN2 (ABEC 1)
- Temperature Range: -20°C to +120°C
- Outer Ring: Without flange/groove
Ideal Applications:
This bearing is well-suited for gearboxes, electric motors, pumps, spindles, machine tool applications, and other heavy-duty industrial equipment where precision, load capacity, and thermal stability are essential. The slightly increased radial clearance makes it particularly suitable for applications subject to temperature fluctuations.

