Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-508351
3311 BTNG NSK Double Row Angular Contact Ball Bearing 55mm x 120mm x 49.2mm
3311 BTNG NSK Double Row Angular Contact Ball Bearing
The 3311 BTNG is a premium double row angular contact ball bearing from NSK, engineered to deliver exceptional performance in high-speed precision applications requiring simultaneous radial and axial load capacity. This bearing combines advanced construction with reliable performance, making it an ideal choice for demanding industrial equipment and machinery requiring enhanced load-carrying capability and precision handling.
Specifications:
- Reference Designation: 3311 BTNG
- Brand: NSK
- Bore Diameter: 55mm
- Outside Diameter: 120mm
- Width: 49.2mm
- Configuration: Double Row Angular Contact
- Contact Angle: 40 degrees
- Seal Type: Open bearing (unsealed)
- Cage Material: Polyamide cage
- Clearance: Normal radial clearance with low axial clearance
- Arrangement: Bearing pair with O- and X-arrangement options
- Material: Standard bearing steel
- Outer Ring: Without flange/groove
- Tolerance Class: P0/PN2 (ABEC 1)
- Operating Temperature Range: -20°C to +120°C
Key Features:
- Double row design for increased load capacity and enhanced rigidity
- 40-degree contact angle optimizes radial and axial load distribution for demanding applications
- Polyamide cage ensures smooth operation and reduced friction during high-speed rotation
- Low axial clearance in O- and X-arrangement configurations for precision alignment
- Open bearing design allows for easy maintenance, cleaning, and re-lubrication as needed
- Compact, robust construction suitable for space-constrained applications
- Wide operating temperature range for versatile industrial use
Typical Applications:
- Gearboxes and transmission systems
- Electric motors and spindle bearings
- Pumps and compressors
- Heavy-duty industrial machinery requiring enhanced load capacity
- Precision equipment with combined radial and axial loading requirements
- Automotive and mechanical drive systems
- Machine tool spindles and high-precision rotating equipment
This double row angular contact bearing delivers exceptional performance in applications where both speed and load capacity are critical requirements. The precision engineering and open design ensure smooth, reliable operation and extended service life in demanding industrial environments where combined radial and axial loads are present.
