Product parameters

Bearing Information

• Part Number 639 2RZ
• Bearing TypeRadial
• ConstructionSingle Row
• Seal TypeRZ

Overall Dimensions

• Dimension mm 9*30*10
• Bore Dia (d) 9mm
• Outer Dia (D) 30mm
• Width (B) 10mm
• Weight  36g

Load Rating & Rotate Speed

• Dynamic Load Rating (Cr) 5.1KN
• Static Load Rating (Cor) 2.39KN
• Max speed (grease) 24000rpm

Other parameters

• Ring Material52100 Chrome steel
• Ball Material52100 Chrome steel
• Cage MaterialStamped Steel Cage
• LubricationGrease
• Temperature Range-30° to 120 ℃
• ABEC RatingABEC-1
• Radial Clearance 0.008-0.023mm
• Quality ControlISO 9001