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HK3520 Drawn Cup Needle Roller Bearing (35mm x 42mm x 20mm, Open Ends)

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Product Highlights

Standard metric dimensions (35mm Fw x 42mm OD x 20mm Width) providing high radial capacity in tight spaces
Deep-drawn, thin-walled outer ring allows extreme compactness where housing bores cannot be used as raceways
Precision-ground GCr15 chrome steel needle rollers ensuring uniform load distribution and low vibration
Rigid stamped steel cage guides rollers accurately for smooth high-speed rotation and low operating torque
Exceptionally high dynamic (26.5 kN) and static (49.5 kN) radial load ratings
Open-end design enables easy through-flow lubrication with standard mineral oils or greases
Press-fit mounting design requires no axial shoulders or snap rings for retention
Full RoHS and REACH environmental compliance across all manufacturing processes

Parameters	Specifications
Bearing Model	HK3520 (Metric Drawn Cup Needle Roller Series)
Inside Diameter / Bore (Fw)	35.000 mm
Outside Diameter (D)	42.000 mm
Width / Height (C)	20.000 mm
Structure Type	Drawn Cup Needle Roller Bearing with Cage (Open Ends)
Outer Ring Material	Stamped & Case-Hardened Carbon / Alloy Steel (ST14)
Needle Roller Material	GCr15 High-Carbon Chrome Bearing Steel (Hardened HRC 60-65)
Cage Material	Stamped Sheet Steel (Precision Formed)
Basic Dynamic Load Rating (Cr)	26.5 kN
Basic Static Load Rating (Cor)	49.5 kN
Limiting Speed (Oil Lubrication)	Up to 7,500 RPM
Limiting Speed (Grease Lubrication)	Up to 5,000 RPM
Shaft Raceway Hardness Requirement	HRC 58 - 64 (When shaft acts as raceway)
Operating Temperature	-30°C to +120°C

Modern precision workshop, advanced CNC automated machining centers, and 100% full-inspection assembly lines.

Verified compliance with global standards, supporting smooth customs clearance and regulatory approvals across North America and Europe.