Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-505982
3908-2RS INA Double Row Angular Contact Ball Bearing 40mm x 62mm x 16mm
The 3908-2RS INA Double Row Angular Contact Ball Bearing is a precision engineered bearing designed to handle combined radial and axial loads simultaneously, making it ideal for high-speed applications requiring reliable performance and extended service life.
Design & Functionality
Double row angular contact ball bearings feature two rows of balls with angularly displaced raceways, providing enhanced load capacity and rigidity compared to single row designs. This configuration enables:
- Simultaneous handling of radial and axial loads
- Improved stability and load distribution
- Smooth, quiet operation at high speeds
- Excellent durability for demanding industrial applications
The 2RS sealed design incorporates lip seals on both sides, providing effective protection against contamination and dust ingress while helping to retain lubrication for extended bearing life and reduced maintenance requirements.
Specifications
- Manufacturer: INA
- Reference Number: 3908-2RS
- Bore Diameter: 40mm
- Outer Diameter: 62mm
- Width: 16mm
- Type: Double Row Angular Contact Ball Bearing
- Arrangement: Standard version
- Contact Angle: 30-40°
- Seal Type: Lip seal on both sides (2RS)
- Cage Material: Sheet steel
- Clearance: Normal radial clearance
- Material: Standard bearing steel
- Outer Ring: Without flange/groove
- Tolerance Class: P0/PN2 (ABEC 1)
- Temperature Range: -20°C to +120°C
Applications
The 3908-2RS is well-suited for various precision applications including:
- Electric motors and spindles
- Gearboxes and transmission systems
- Machine tool equipment
- Pumps and compressors
- Industrial machinery requiring sealed bearing protection
- Applications where contamination resistance is essential
As an INA product, this bearing combines precision engineering with reliable sealed protection, making it an ideal choice for applications requiring both combined load capacity and protection against environmental contaminants.

