These fit sx sxmc and mxj spools. Avet spool bearings. abec5 rated which is better than factory bearings.
Miniature Steel Ball Bearings for Fishing Reel Replacement Parts, Low Friction High Speed Spool Bearings, Resistant Metal Gear Repair Compatible with For Daiwa(4 * 7 * 2mm)
Feeshoppher Metal Fixed Spool Fishing Reel for MX Series 1000-7000, All-Metal Spool with Brass Gear, Folding Interchangeable Arm, Stainless Steel Bearings for Sea Surf Freshwater Ca(MX4000)
Feeshoppher Baitcasting Reel with Full Metal Spool, Magnetic Brake System, 17+1 Bearings for Smooth Casting, Left or Right Hand Retrieve, Ideal for Bass Fishing and Long Distance Lu(Left hand)
Seamless Fishing Reel with Metal Spool | 5.0:1/4.7:1 Gear Ratio | 12kg Max Drag | For CNC Rocker Arm | 3+1 Sealed Bearings for Saltwater Freshwater(DK5000)
MIKMLYZE Telescopic Carbon Fishing Rod 1m/1.2m/1.5m Portable Lightweight Design with Aluminum Alloy Spool and 3 Smooth Bearings For Ideal for Travel or Anglers Seeking(1.2M Blue)
ComfyHarbor Electroplated Baitcasting Fishing Reel,with 12KG Drag, Zinc Alloy Metal Spool, Sealed Bearings,For CNC Left/Right Handle,for Saltwater Freshwater(S1000)