Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-518363
3307 SC3 NTN Double Row Angular Contact Ball Bearing 35mm x 80mm x 34.9mm
3307 SC3 NTN Double Row Angular Contact Ball Bearing
The 3307 SC3 is a precision-engineered double row angular contact ball bearing from NTN, designed to handle simultaneous radial and axial loads in both directions. This robust bearing is ideal for high-speed, heavy-duty applications where enhanced load capacity, durability, and reliable performance are essential. The double row configuration provides superior load handling compared to single row alternatives, making it well-suited for demanding industrial environments.
Key Specifications:
- Bore Diameter: 35mm
- Outer Diameter: 80mm
- Width: 34.9mm
- Contact Angle: 30-40 degrees (standard)
- Row Type: Double Row
- Arrangement: Standard version
Technical Features:
- Brand: NTN
- Reference: 3307 SC3
- Material: Standard bearing steel
- Cage: Sheet steel cage for reliable performance under demanding conditions
- Clearance: Slightly increased radial clearance for enhanced operational flexibility
- Seal: Open bearing design (none)
- Outer Ring: Without flange or groove
- Tolerance Class: P0/PN2 / ABEC 1
- Operating Temperature Range: -20°C to +150°C
Key Features & Benefits:
- Double row design for exceptional radial and axial load capacity in both directions
- Sheet steel cage construction ensuring robust stability and performance
- Slightly increased radial clearance optimised for high-speed applications and thermal expansion
- Wide operating temperature range from -20°C to +150°C for versatile industrial use
- NTN quality engineering guarantees precision and consistent reliability
- Open bearing design suitable for applications with effective external lubrication and cooling
Applications:
The 3307 SC3 is particularly well-suited for:
- Precision machine tool spindles and high-speed rotating equipment
- Gearboxes and transmission systems requiring bidirectional load handling
- Industrial motors and heavy-duty rotating machinery
- Automotive and industrial transmission applications
- Compressors, pumps, and centrifugal equipment
- Applications requiring combined radial and axial load capacity
- Heavy-duty mechanical systems operating in moderate to high-speed environments
The double row configuration delivers exceptional stiffness and load capacity in a compact footprint, while the sheet steel cage ensures stable operation under demanding conditions. The slightly increased radial clearance accommodates thermal expansion and provides flexibility for high-speed operation. As an open bearing design, the 3307 SC3 is ideal for applications where external lubrication can be effectively managed. NTN's precision manufacturing standards ensure dependable performance in critical industrial applications.
