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Super Precision Angular Contact Ball Bearings S7008 FW/HC

Super Precision Angular Contact Ball Bearings S7008 FW/HC

The S7008 FW/HC is a super precision angular contact ball bearing with a 40mm bore and 68mm outer diameter, crafted from chrome steel for durability. Its 18° contact angle and ceramic balls ensure smooth operation under radial loads up to 2722 lbf.

This sealed bearing reaches speeds up to 31,000 RPM, making it suitable for high-performance applications. The phenolic cage adds stability, while the P4 tolerance class guarantees precision.

Preload options are available for tighter control, and it operates in temperatures from -30°C to 110°C. Ideal for CNC spindles or high-speed machinery where accuracy is key.

Weighing just 0.17kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number S7008 FW/HC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 15 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 19
  • Contact Angle 18°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2722 lbf
  • Static Radial Load 1688 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.17 kg
  • Price（$） 236.556
Super Precision Angular Contact Ball Bearings S7008 FW/HC dimension drawing
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Features

Why Choose S7008 FW/HC Bearing for Precision Tasks?

S7008 FW/HC Bearing features a precision P4 tolerance class, ensuring high accuracy for demanding applications.
Its ceramic balls and chrome steel rings reduce friction, enhancing performance at speeds up to 31,000 rpm.

The phenolic cage maintains ball alignment, contributing to smooth operation under dynamic radial loads of 2722 lbf.
With an 18° contact angle, it efficiently handles combined radial and axial loads.

Sealed design and preload availability make S7008 FW/HC Bearing suitable for long-term use in varied conditions.
Its temperature range of -30° to 110°C ensures reliability in diverse environments.

Application

Common Applications of S7008 FW/HC Bearing
S7008 FW/HC Bearing works well in high-speed machine spindles, where its ceramic balls reduce friction and heat buildup. The sealed design keeps contaminants out, extending service life in dusty workshop environments.

How Does S7008 FW/HC Bearing Improve Performance?
In CNC routers, S7008 FW/HC Bearing maintains precision during rapid directional changes thanks to its 18° contact angle. The phenolic cage dampens vibrations, resulting in smoother surface finishes on machined parts.

Ideal for Precision: S7008 FW/HC Bearing
Medical imaging devices benefit from S7008 FW/HC Bearing’s P4 tolerance class, ensuring quiet operation during sensitive scans. Its lubricated design requires minimal maintenance in hard-to-access equipment.

Automotive vs Aerospace: Applications of S7008 FW/HC Bearing
While S7008 FW/HC Bearing handles wheel hub loads in performance cars, it’s equally suited for aircraft instrumentation due to its temperature stability. The metric sizing fits common European and Asian engineering standards.

Perfect Fit for Automation: S7008 FW/HC Bearing
Robotic arms use S7008 FW/HC Bearing in their rotary joints for consistent angular positioning. The chrome steel rings withstand continuous operation in automated production lines.

Q&A

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