Bearing
Bearing
WHY 440C STAINLESS steel?
Good corrosion resistance to water and many weak chemicals.
Corrosion resistance can be improved by passivation.
Good for temperatures up to 300°C.
Slightly softer than chrome steel so lower load ratings.
Will corrode in salt water or salt spray and poor resistance to acids/alkalis.
More expensive than chrome steel.
TECHNICAL SPECS
Item: S628ZZ
Structure: Deep Groove
Material: 440C Stainless Steel ( prefix "S" )
Bore Dia (d): 8 mm
Outer Dia (D): 24 mm
Width (B): 8 mm
Closures: Metal Shielded(ZZ)
Lubrication: Grease
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Grades: ABEC Grades 1
Dynamic Load Rating (Cr) (Newtons): 2833
Static Load Rating (Cor) (Newtons): 1138
Ball Qty: 7
Ball Dia (Dw): 3.969 mm
Widely used in household appliances, garden machinery, outdoor vehicles, industrial production, etc. Suitable for skateboards, longboards, inline skates, scooters, robots, ship rudder axles, etc.
Features: small friction, fast speed, smooth, low noise.