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ID x OD x Width: 15mm x 24mm x 5mm
- Grade 5 steel balls with ABEC 5 precision
- Made with a 15 degree contact angle
NOTE: These bearings are directional. Always install with the ORANGE/RED seal facing out, and "load" the inner race!
These Angular Contact bearings are specifically designed for hubs that have a preload feature (and certain bottom bracket applications).
In standard radial bearings, only 3 or 4 balls make contact during the load, at any given time.
But in these A/C bearings, ALL balls are engaged and spread the force over a larger surface area, which decreases friction, and minimizes wear.
Vendor Part # 71802 LLB