SKF QJ 304 MA 1 Row Ball Bearing - 20 mm ID, 52 mm OD 15 mm Race Width

This ball bearing is a single-row four-point contact component designed for applications requiring angular contact capacity and high rotational speed. It accommodates combined radial and axial loads within Compact assemblies and is supplied with an open-end configuration for straightforward integration into rotating machinery.

• 24,000 r/min limiting speed supports high-speed operation
• 35° contact angle provides enhanced axial load handling
• Machined brass cage reduces internal friction for smoother running
• CN internal clearance allows controlled axial play under load
• Dynamic load capacity 32 kN increases operational load endurance
• Static load capacity 21.6 kN sustains high stationary loads

• Suitable for spindle and rotary tool assemblies
• Ideal for high-rpm testing rigs and balancing machines
• Used with drives requiring combined axial and radial support
• Can be used for precision index tables and turntables
• Used for machinery where open-ended access is required

The bore is parallel so a straight cylindrical housing bore is required for correct seating.

The four-point contact geometry shares axial loads in both directions, enabling bidirectional axial load accommodation.

The rolling elements are steel balls and the cage is MADE from machined brass.

The unit requires accommodation for a 20 mm inside diameter and a 52 mm outside diameter.

The race assembly presents a 15 mm overall width across the rolling elements.