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See Why Choose 30304 7304E 30304JR Chrome Steel Single Row Cone and Cup Tapered Roller Bearings

Tapered Rolling Bearing
December 17, 2025
Category Connection: Tapered Roller Bearings
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#Tapered Rolling Bearing #Precision Tapered Roller Bearings #Single Row Tapered Roller Bearing
Brief: Wondering how it compares to other options? See the demo and decide for yourself. This video showcases the 30304 7304E 30304JR Chrome Steel Tapered Roller Bearing in action, demonstrating its high-speed performance capabilities. Watch as we explain how its tapered design prevents roller skidding and see its suitability for demanding applications like precision robotics and mini fans.
Related Product Features:
  • Constructed from durable chrome steel for long-lasting performance in demanding applications.
  • Features a single row cone and cup tapered roller bearing design measuring 20x52x16mm.
  • Achieves a reference speed of 12,000 RPM with a maximum limit reaching 14,000 RPM.
  • Offers high-speed operation with grease-lubricated variants reaching up to 8,300 RPM.
  • Provides superior oil-lubricated performance with speeds up to 11,000 RPM.
  • Tapered design ensures even distribution of centrifugal force to eliminate roller skidding.
  • Ideal for high-speed applications including mini fans and precision robotics joints.
  • Compatible with numerous international bearing numbers including 30304, 7304E, and 30304JR.
Faqs:
  • What are the key dimensions of the 30304 tapered roller bearing?
    The 30304 tapered roller bearing has an internal diameter of 20mm, an outside diameter of 52mm, and a width of 16mm, with a weight of 0.17 kgs.
  • What speed capabilities does this bearing offer for different lubrication methods?
    This bearing achieves a reference speed of 12,000 RPM (max 14,000 RPM), with grease-lubricated versions reaching 8,300 RPM and oil-lubricated models achieving 11,000 RPM.
  • How does the tapered design benefit high-speed applications?
    The tapered roller design distributes centrifugal force evenly, which eliminates roller skidding that commonly affects standard ball bearings at high rotational speeds.
  • What are some equivalent bearing numbers for the 30304 model?
    This bearing is compatible with numerous international standards including 7304E, 30304JR, 11590/11520, LM11749/LM11710, and many others listed in the product specifications.
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