SKF W 61902-2Z 1 Row Deep Groove Ball Bearing - 15 mm ID, 28 mm OD

This deep groove ball bearing is a sealed stainless steel unit designed to support radial loads in compact, high-speed machinery. It is intended for use where corrosion resistance and continuous rotational performance are required, offering a sealed configuration that reduces contamination risk while maintaining smooth operation in automation, electronics and mechanical systems.

• Stainless steel raceways and balls provide corrosion resistance and longevity
• Integral shields reduce ingress and lower maintenance intervals
• Stainless steel cage improves stability at elevated rotational speeds
• Internal CN clearance allows standard radial play for predictable axial behaviour
• Dynamic load capacity of 3.71 kN supports sustained radial loading
• Limiting speed of 28,000 r/min enables high-speed miniature applications

• Suitable for miniature motor spindles in automation equipment
• Ideal for rotary encoders in electronic control systems
• Used with precision fans in cooling systems for electronics
• Can be used for rotary joints in small robotic actuators
• Suitable for electric drives in Compact mechanical assemblies

It has a cylindrical bore tailored for slip-fit or interference arrangements depending on shaft preparation.

The shielded end design reduces external contamination ingress, allowing longer retention of lubricant compared with open bearings, but periodic re-lubrication is still required under heavy-duty cycles.

As a single-row deep groove type, it primarily resists radial forces while accommodating limited axial loads in both directions due to the raceway geometry.

Full stainless steel construction of balls, races and cage moderates thermal expansion and provides non-ferrous magnetic characteristics compared with carbon steel variants.