Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-508525
3305 B-2ZRTNGC3 NSK Double Row Angular Contact Ball Bearing 25mm x 62mm x 25.4mm
3305 B-2ZRTNGC3 NSK Double Row Angular Contact Ball Bearing
The 3305 B-2ZRTNGC3 is a compact double row angular contact ball bearing from NSK, engineered to deliver reliable performance in applications requiring simultaneous radial and axial load capacity. This precision bearing combines robust construction with a space-efficient design, making it an excellent choice for demanding industrial and mechanical applications.
Key Features:
- Double row configuration for enhanced load-carrying capacity in both radial and axial directions
- Contact angle: 25 degrees for optimized load distribution and smooth operation
- Protective covers on both sides (2ZRTNGC3 design) for effective contamination protection
- Polyamide cage for reliable ball centring, reduced friction, and lightweight performance
- Slightly increased radial clearance for applications with thermal expansion or misalignment tolerance
- Standard bearing steel construction for durability and extended service life
- Tolerance class P0/PN2 (ABEC 1) for precision industrial applications
- Operating temperature range: -20°C to +120°C
- Compact form factor ideal for space-constrained applications
Specifications:
- Bore Diameter: 25mm
- Outside Diameter: 62mm
- Width: 25.4mm
- Row Type: Double row
- Seal Type: Covers on both sides
- Contact Angle: 25 degrees
- Cage Material: Polyamide
- Radial Clearance: Slightly increased
- Brand: NSK
- Reference: 3305 B-2ZRTNGC3
Applications:
This bearing is particularly well-suited for compact precision machinery and equipment where space efficiency is critical. Ideal applications include:
- Small to medium-sized gearboxes and transmission systems
- Electric motors and industrial fans
- Machine tool spindles and precision equipment
- Automotive components and light-duty automotive applications
- HVAC systems and pumps
- General industrial machinery with bidirectional axial load requirements
- Applications operating in temperature-controlled environments
The sealed design with covers on both sides provides excellent protection against contamination while maintaining the compact dimensions essential for space-limited installations. The slightly increased radial clearance offers flexibility for applications where thermal variations or minor misalignment may occur.

