HMK4030 Drawn Cup Needle Roller Bearing 40×50×30mm for Limited Space Equipment

• HMK4030 is a common drawn cup needle roller bearing with compact structure and high load capacity. It features thin wall and small radial size, ideal for equipment with limited installation space. This bearing runs stably with low noise, suitable for continuous working conditions. It can work with or without inner ring, flexible for various assembly requirements.

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• Ultra-compact size, saves radial installation space
• High radial load capacity, good shock resistance
• Thin stamped steel shell, high precision and tight fit
• Low friction, smooth operation and long service life
• Flexible installation, support inner ring assembly

• Widely used for mechanical parts requiring small size and high load:

  • Automotive transmission and engine components
  • Hydraulic pumps and valve units
  • Construction machinery and agricultural machinery
  • General industrial compact rotating assemblies

*Ready stock. Short lead time. Fast delivery. Send us your bearing list and let’s get started!

• 30 years professional bearing industry experience
• ISO certified strict quality inspection
• Flexible OEM & private label customization
• 3-5 days fast delivery for stocked bearings
• Full bearing series, universal interchangeable size
• Factory direct price & reliable after-sales service

*Need custom bearings? Share your drawings, specifications or requirements — we’ll find the right solution for you.