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6304 Bearing Series

Deep groove ball bearing — multiple seal variants available

Common Dimensions

D = 52d = 20B = 15All dimensions in mmDimension reference diagram — not a manufacturing drawing
Bore (d)

20 mm

Outer Diameter (D)

52 mm

Width (B)

15 mm

Dimension series follows ISO 15 / DIN 625. Values are taken from the factory's parameter table.

Available Variants

ModelSeal Typed×D×BGrease SpeedOil SpeedAction
63042RS2RS20×52×1510,000 rpm—View Details →
6304ZZZZ20×52×1514,000 rpm—View Details →
6304RSRS20×52×1510,000 rpm17,000 rpmView Details →
6304RZRZ20×52×1514,000 rpm17,000 rpmView Details →
63042RZ2RZ20×52×1514,000 rpm—View Details →
6304openOpen20×52×1514,000 rpm17,000 rpmView Details →
6304ZZ20×52×1514,000 rpm17,000 rpmView Details →

Related specifications notes

Typical Applications

  • Electric motors and generators
  • Water pumps and fluid handling systems
  • Agricultural machinery
  • Home appliances
  • General industrial applications

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