HK4020 Needle Roller Bearing 40×47×20mm Drawn Cup For Hydraulic Cylinders Power Tools Automotive Parts

• HK4020 is an open‑end drawn cup needle roller bearing with dimensions 40×47×20mm. Without an inner ring, it adopts thin stamped steel cup and dense needle‑roller assembly. Made of GCr15 chrome steel, this compact‑section bearing delivers outstanding radial load capacity and high rigidity. Its open‑end design enables convenient lubrication, perfectly suited for compact‑structure machinery with limited installation space.

*Contact GQZ now for quick quotation and bearing samples.

• Ultra‑thin cross‑section saves valuable installation space for compact equipment
• High radial load‑carrying capacity and high structural rigidity under heavy load
• Open‑end structure supports easy grease or oil lubrication and maintenance
• No inner ring, the shaft surface can serve directly as the inner raceway
• Low‑friction needle‑roller assembly ensures smooth stable rotation
• Heat‑treated drawn‑cup outer shell offers good wear‑resistance and long service life

• Hydraulic cylinders and hydraulic power units
• Automotive transmission and chassis components
• Power tools and small high‑speed rotary equipment
• Construction machinery gearbox assemblies
• Agricultural equipment and conveyor transmission parts
• General‑purpose compact industrial machinery

*Send your requirements, GQZ provides stock bearings & OEM service.

• 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

*Cooperate with GQZ for high‑quality bearings and competitive factory prices.