Includes (4) 680141018 Ball BearingsNew, Bulk PackedGenuine OEM Replacement Part # 680141018-4PKConsult owners manual for proper part number identification and proper installationPlease refer to list for compatibilityCompatible with the following: Ryobi: AP1300 13" Portable, D28VSR, D40, D41K, D46C, D50VSR, TS1302, TS1341, TS1342, TS1350, TS1351, TS1352, TS1353DXL, TS1354DXLLaser, TS13552DXL, TS1355LLaser, TS1355LALaser, TS1553DXLLaser, RS290, BE318-2 Sander, RE170VS, R161 1- Kit, RJ165V, RJ162VK, RJ161VK, RJ161V, RJ150V-02, RJ150V-01, RJ150, TR45K, TR31, TR30, AG452K, HD500, TS1552DXL Ryobi: TS1552DXL W/ Laser, RY46501A, RY46501B, TS1342L, R2601, D47C in. Clutch Driver, R165, TS1552LA 12 In.W/ Laser, JS481L, AG453, R160 1 HP, Ridgid: MS1065LZ, MS1065LZA, R4121Adjustable Laser, R3000S, R3121, R5011, R5013, R3200, R3200, R6300, R7000, R3201, R2600, R7001, R71211 Mud Mixer, R4030 Tile, R32031, R6791 Collated, R4030S Job Site Tile Saw with Laser