McMaster 4550K194 Thick Wall Welded Steel Pipe Nipple, Threaded Both Ends, 3 4 NPT, 2 1 2" Long, Sch 80, Class 300 6JDU3 Bearing Industry Number 6205 Bearing Bearing Industry Number 6205 Bearing Type Sealed Seal Shield Type Double Sealed Bore Diameter 25 mm Outside Diameter 52 mm Outer Ring Width 15 mm Closure Double Sealed Seal Type Contact Includes Retaining Ring Yes Retaining Ring Material Snap Ring ABEC Rating 1 Cage Material Steel Ball Material Alloy Steel Ring Material Alloy Steel Dynamic Radial Load Capacity 3 Abrasive Material Carbon Steel Mounting Type Arbor Hole Bristle Type Standard Twist Knot Wire Fill Material Carbon Steel For Use With Angle Grinders Arbor Hole M10 x 1 Also known as Schedule 80 Welded — Pipe has a weld bead on the inside