20pcs MR104ZZ Deep Groove Ball Bearings Double Shielded Chrome Steel Z2 Top Selling the small head is the

the small head is the transmitting part

*Furniture Casters Alloy Plastic 2 Inch Twin Wheel M10 x 15mm Threaded Stem Swivel Caster

Middle Tube Length: 50mm / 1

): 46mm x 50mm / 1

Operation life test: at least 200000 times

20pcs MR104ZZ Deep Groove Ball Bearings Double Shielded Chrome Steel Z2 Top Selling the small head is theNOTE: Please refer to the picture and select right type of bearings before your order (Sealed or Shield on BOTH or SINGLE side of the bearing). Suffix on the bearing just for differentiating between Sealed and Shield type of bearing. It would not affect the use of our product. Description: Single row, pre lubricated, normal accuracy. Deep Groove Ball Bearings are one of the most widely used rolling bearings. They are used to accommodate radial and