12x21x5mm Chrome Steel Blue Sealed Cartridge Bearings With Grease For Bike Pivot Four Pack Full Complement No Retainer For Beefy Load Handling Up To Forty Five Percent Higher Load Capacity And Smooth Quiet Pivot With Double VRS Lip Labyrinth Seal

Chrome Steel Blue Sealed Bearings for Bike Pivots (4-pack)
✔️ 12x21x5 mm full-complement ABEC 3, double VRS seals, 4-pack

These sealed 12x21x5 mm cartridge bearings are built for bike suspension pivots, using a full-complement design with no retainer to maximize load capacity. This four-pack supports paired pivots and maintains consistent grease.

✅ 12 mm ID x 21 mm OD x 5 mm thick, blue chrome steel bearing
✅ Full-complement design with no retainer for up to 45% higher load capacity
✅ Double VRS dual-lip labyrinth seals protect grease and block dust
✅ ABEC 3 radial MAX bearing with 52100 high chromium steel races (HRC 62.5)

💡 What is a sealed cartridge bearing used for in bicycle pivots and how does the blue chrome steel variant help?

These bearings handle repetitive pivot loads in suspension pivots and help keep motion smooth with low maintenance.

- Higher load capacity with full-complement design - Sealed to keep grease in and dust out - ABEC 3 precision with hardened steel races - Common 12x21x5 mm size for pivots✝️