R4 Inch Size Ball Bearing Open Cage Quarter Inch ID And Five Eighths Inch OD Wide Open No Snap For Precision Machinery And Miniature Equipment MRC Bearing Service

R4 Inch Ball Bearing, Single Bearing by MRC: INST & MINI Size
✔️ 1/4 in bore x 5/8 in OD, open, single row radial bearing, steel

The MRC R4 inch-size ball bearing is a compact radial bearing designed for small shafts in hobby machines, printers, tool rigs, and precision assemblies. This open style unit is ideal where easy lubrication and quick inspection are needed.

✅ I.D. bore: 1/4 in (6.35 mm)
✅ O.D. outer diameter: 5/8 in (15.88 mm)
✅ Width: 0.196 in (4.98 mm)
✅ Type: radial, single row; enclosure open; steel cage
✅ Material: steel; seal none; lubrication oil
✅ Precision: ABEC 1; max speed with oil 54000 rpm

💡 What is a small inch size radial ball bearing used for in compact machinery?

This handy bearing helps support rotating shafts in tight spaces. - low-friction rotation on small shafts in compact devices - ideal for printers, hobby machines, and inline gear setups - maintenance tips: keep lubrication appropriate for ABEC 1 clearance