Single Row Tapered Roller Bearings are designed to accommodate combined loads
Drill Hole Size: 60 x 150 mm /2
According to the thickness of your shelf
You can use these leveling feet to install your product feet
*Office Chair Casters Wheels 2 Inch PU Twin Wheel Universal Standard 11mm Stem Swivel Caster Black 4pcs
25 Sets Screw Snap Kit 15mm Stainless Steel Snaps Button with Tool, Silver Tone H27 Single Row Tapered Roller BearingsDescription The snap fasteners kit contains 25 sets of screw snaps, 1 base, and 2 install tool. Each Snap set includes 1 Phillips head screw, 1 cap, and 1 socket. The cap's diameter is about 5 8 inch(15mm). Made of stainless steel, corrosion resistant, strong, and durable. With a clear box, convenient for storing small snaps. These screw snaps can be connected to wood, plastic, etc. Get what you need in 1 set, easy to set the snap fasteners in place