HK3520 Drawn Cup Needle Roller Bearing (35mm x 42mm x 20mm, Open Ends)
- High-Carbon Chrome Steel (GCr15) for Long Service Life
- Precision Ground for High Speed, Low Noise & Low Vibration
- Dual Metal Shielded (ZZ) / Rubber Sealed (2RS) Protection
- Standard Metric Dimensions for Direct OEM Replacement
- Pre-Lubricated & Maintenance-Free Ready for Installation
Key Features
Engineered for superior reliability, high torque efficiency, and low-noise continuous operations.
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
Technical Specifications
Detailed engineering parameters, mechanical dimensions, and electrical performance figures.
| 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 |
Dimensions & Technical Drawings
Why Choose Us
Direct industrial manufacturing capabilities, certified international quality standards, and dependable engineering support.
Factory Manufacturing Capabilities
Modern precision workshop, advanced CNC automated machining centers, and 100% full-inspection assembly lines.
CNC Machining Workshop
High precision ±0.005mm tolerance
Automated Assembly Lines
Capacity up to 50,000 units/month
Rigorous QC & Testing Lab
Noise, torque & life cycle testingInternational Certifications
Verified compliance with global standards, supporting smooth customs clearance and regulatory approvals across North America and Europe.
ISO9001
European Conformity Verified
CE RoHS
Eco-friendly & hazardous-free
CE
Standardized Quality Management
