3309 A SKF Bearing Double Row Back To Back 45 Mm Bore 30 Degree Contact Angle CN Axial Clearance Outer Ring Locating Feature None Sheet Metal Cage Without Coating Heavy Duty 75 kN Dynamic Load 53 kN Static Load

3309A SKF double-row back-to-back bearing, 45 mm bore
✔️ 45 mm bore, 30° contact angle, CN clearance, 75 kN dyn load

The 3309A SKF bearing is a heavy‑duty double‑row unit designed for high‑load shaft support in rugged equipment. It features a sheet metal cage and no coating, making it a cost‑effective choice for layouts like conveyors, presses, and industrial machinery where dependable rigidity matters.

✅ Arrangement: Back-to-back (O)
✅ Rows: 2, normal contact (two-point)
✅ Contact angle: 30°
✅ Bore: 45 mm (1 7/9 in)
✅ Outer diameter: 99 mm (3 8/9 in)
✅ Width: 39.7 mm (1 9/16 in)
✅ Basic dynamic load rating: 75 kN
✅ Basic static load rating: 53 kN
✅ Cage: Sheet metal
✅ Material: Bearing steel
✅ Coating: Without

💡 What is a pillow block bearing used for in industrial machinery?

These handy bearings sit under a rotating shaft to keep it aligned and supported in tight spaces. They simplify frame design and maintenance while delivering reliable shaft stability in everyday industrial lines.

- Handy for conveyors, presses, and machine tools - Helps maintain shaft alignment under dynamic loads - Keeps downtime down with straightforward replacement