S7206C Angular Contact Ball Bearing for Machine Tool Spindles | 30 mm Bore

• Large Machining Center Spindles
• Grinding Wheel & Heavy-Duty Lathe Spindles
• oring Machine & Milling Machine Spindles
• Precision Gear Hobbing Machine Spindles

• Industrial Reducer & Gearbox Shafts
• Wind Turbine Gearbox Stages
• Marine & Offshore Transmission Systems
• Heavy Vehicle Axle & Driveline Units

• Multistage Centrifugal Pump Shafts
• High-Pressure Screw Compressor Rotors
• Hydraulic Pump & Motor Shafts
• Large Industrial Fan & Blower Shafts

• Heavy-Duty Robotic Arm Base & Wrist Joints
• Automated Stacker Crane Drive Wheels
• Large Conveyor Drive Rollers & Pulleys
• Forging & Stamping Machine Guides

01. Superior Axial Rigidity & High Load Capacity

With its 15° contact angle (C), the S7206C is designed to handle significantly higher axial and combined loads than standard bearings. This provides exceptional shaft stiffness and positional accuracy, which is critical for heavy machining, high-load gear systems, and applications requiring resistance to severe thrust forces.

02. Engineered for Demanding High-Speed Operation

Precision-ground raceways, high-quality steel, and optimized cage designs (often machined brass or polymer for high-speed variants) minimize friction and heat. This enables stable, reliable performance at elevated speeds, suitable for continuous operation in the most challenging industrial environments.

03. Robust Construction & Mounting Flexibility

Often built to higher preload or clearance standards for specific applications. Designed for paired mounting (DB, DF, DT arrangements) to handle complex load scenarios from any direction. Available in open, shielded (ZZ), or sealed (2RS) configurations to adapt to various operational conditions, from oil-bath lubricated spindles to harsh industrial settings.

Interchange Part Numbers

Direct replacement for major brand high-precision equivalents:

• SKF: 7206 C, 7206 CD/HCP4A
• NSK: 7206C, 7206CTYNSULP4
• FAG: 7206 C, 7206-B-TVP
• NTN: 7206C, 7206BLG
• KOYO: 7206C

Design & Configuration

The S7206C is typically supplied as an open type or with specific preload for precision paired mounting applications. For protection, the ZZ suffix adds non-contact steel shields. For sealed applications, the 2RS version is available. It is most commonly and effectively used in paired arrangements (back-to-back DB or face-to-face DF) to handle combined loads and moments. Special internal radial clearance or preload (C2, C3, C4, or specific preload grades like GA, GB) is crucial for optimal performance in high-speed or high-stiffness applications.

"In high-precision machining centers and heavy-duty industrial gearboxes, S7206C bearings, precisely paired and preloaded, deliver the uncompromising axial rigidity, rotational accuracy, and load capacity essential for superior equipment performance and reliability."