SKF RMS 9 Bearing offers high speed precision and durable steel construction, 28.575 mm cylindrical bore, sheet metal cage, no lubricant supplied, maximum rpm up to 19 000, ideal for machines demanding reliable load handling

SKF RMS 9 Ball Bearing, Single Pack, 28.575 mm Bore
✔️ Bore 28.575 mm, width 20.638 mm, OD 2 13/16 in, CN clearance

The RMS 9 is a single-row, open ball bearing from SKF with a cylindrical bore. It's built for light to moderate radial loads in machinery and automation where simple, dependable rotation is needed. This is a bare bearing (no seals and no lubricant included), so you’ll add your own lubrication and follow your system’s relubrication schedule.

✅ Basic Dynamic Load Rating 28.1 kN
✅ Basic Static Load Rating 16 kN
✅ Bearing Material Bearing steel
✅ Outer Ring Locating Feature None
✅ Bore Diameter 28.575 mm (1.125 in)
✅ Bore Type Cylindrical
✅ Cage Sheet metal
✅ Coating Without Filling
✅ Limiting Speed 19000 r/min
✅ Lubricant None
✅ Matched Arrangement No
✅ Number of Rows 1
✅ Outer Diameter 2 13/16 in (71.59 mm)
✅ Pack Height 78 mm (3.07 in)
✅ Pack Length 76 mm (2.99 in)
✅ Pack Width 28 mm (1.10 in)
✅ Radial Internal Clearance CN
✅ Reference Speed 20000 r/min
✅ Width 20.638 mm (0.8125 in)
✅ Tolerance Class Normal

💡 What is a cylindrical bore ball bearing typically used for in small machinery?

These handy bearings are common in compact gearboxes, conveyors, and light-duty machines where smooth rotation and predictable motion matter.

- radial support in tight spaces with standard CN clearance - easy integration with user lubrication and relubrication routines - straightforward replacement using common sizing and parts