Shock Absorber Bearing Terminology Guide

Understanding bearing terminology helps avoid misunderstandings and make better procurement decisions.

1. Basic Terms

Bore (d): Inner ring diameter
OD (D): Outer diameter
Width (B): Total bearing width
Rolling element: Balls or rollers inside

2. Material Terms

GCr15: Common bearing steel
Case-hardening steel: Surface hardened, good toughness
HRC: Rockwell hardness, standard HRC 60-65

3. Quality Terms

P0/P6/P5/P4: Precision grades
Clearance: Gap between elements and raceways
Fatigue test: Simulated load testing

4. Contract Terms

MOQ: Minimum Order Quantity
Lead Time: Delivery time
OEM: Original Equipment Manufacturer
FOB/CIF: Trade price terms

Know these terms for better procurement! Contact Huami!