INA Needle Roller & Angular Contact Ball Bearings: Precision Engineered Solutions for Demanding Motion Systems
Introduction: Specialized Bearings for Extreme Operating Demands
INA’s Needle Roller and Angular Contact Ball Bearings represent Schaeffler Group’s mastery of high-density load transfer and precision motion control. Engineered for applications where space constraints, dynamic loads, and rotational accuracy are critical, these bearings deliver unmatched performance in automotive, aerospace, robotics, and industrial machinery.
INA Needle Roller Bearings: Engineering Excellence
- Advanced Structural Designs
Drawn Cup Needle Bearings (HK Series):
0.3–0.8 mm thin-walled steel shells
Caged needle rollers with ±2 μm diameter tolerance
Dynamic load capacity: Up to 450 kN at 50 mm bore
Solid Needle Bearings (NA Series):
Machined rings with integrated flanges
OPTWAVE® hardened raceways (62 HRC)
Axial retention without separate washers
- Material & Tribology Innovations
Roller Engineering:
100Cr6 steel with silicon nitride end caps
Superfinishing to Ra 0.05 μm (40% friction reduction)
Cage Technology:
Glass-fiber reinforced PA66 cages (120°C continuous)
Machined brass cages for high-shock applications
- Sealing Solutions
Triple-Layer Protection:
Non-contact labyrinth + spring-loaded PTFE + particle wiper
IP69K Washdown Options:
FKM seals with titanium retainers
Why INA Leads the Market
Manufacturing Depth:
In-house roller/ball production (λₚ <0.1 μm waviness)
100% electromagnetic inclusion testin
Digital Ecosystem:
BearingXpert configurator with FEA load simulation
RFID-enabled smart bearings with usage tracking
Certifications:
IATF 16949 automotive
AS9100 aerospace
ISO 13485 medical
Conclusion: Precision Engineered for Performance Extremes
INA’s Needle Roller and Angular Contact Ball Bearings embody the Schaeffler Group’s commitment to solving the most demanding motion control challenges. Whether maximizing
load density in millimeter-scale spaces or enabling micron-level precision at 300,000 rpm, these technologies deliver measurable performance advantages through:
Needle Rollers: Unmatched radial load capability in ultra-compact designs
Angular Contacts: Nanometer-accurate motion under extreme combined loads
For engineers designing tomorrow’s high-performance machinery, INA provides not just components – but optimized motion subsystems validated for reliability at the technological frontier.
