Do You Know What the Letters and Numbers Engraved on Bearings Mean?
Bearing letters and numbers are industry codes that define the product’s features.
RS/RZ: Plastic seals for moisture, dust, and corrosion protection.
ZZ/2Z: Steel shields for dust protection with low friction.
C0–C5: Internal clearance, with larger numbers for high-speed or high-temperature use.
P0–P2: Precision grades, with smaller numbers for higher accuracy.
Z0–Z4: Quietness ratings, with larger numbers for quieter operation.
Understanding these codes ensures the right bearing is selected for your specific industry and operating conditions.
