NTN to mass-produce SP-1 grease for machine tool spindles

· Lubricants & Chemicals · Japan

NTN Corporation will begin mass production of its High-Speed, Long-Life Grease SP-1 for machine tool spindle bearings in November 2026. The company said the move gives customers the volumes they need to evaluate the product. Greases for spindle bearings are a specialized segment where high-speed performance and long service life matter, and NTN's decision to scale up production signals confidence that demand from machine tool builders justifies commercial volumes.

Why it matters：Specialty greases for precision bearings are a high-value niche in the lubricants market, and a major bearing maker bringing one in-house to mass production shows where suppliers see growth.

Key points

  • SP-1 is aimed at machine tool spindle bearings
  • Mass production starts November 2026
  • Company cites customer evaluation volumes as the rationale

Sources (original reporting)

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