KOYO – Ball & Roller Bearings (General Catalog)

KOYO – Ball & Roller Bearings (General Catalog) is Koyo’s panoramic handbook across ball, cylindrical, spherical and tapered bearings, plus thrust and special types. It provides life calculation (L10/Lnm), fit/tolerance tables, internal clearance guidance, and lubrication and sealing strategies to reduce start‑up failures and extend service life.

Content overview

• Overview of ball, cylindrical, spherical, tapered and thrust types.
• Life L10/Lnm and reliability modifiers for contamination/shock.
• Fits, tolerances and internal clearance guidance.
• Lubrication, sealing and speed/temperature limits.

How to use

1. Define loads, speed and environment.
2. Select bearing family/size; verify life and limiting speed.
3. Choose fits/clearances and lubrication plan.
4. Validate temperature and vibration at start‑up.

Best practices

• Do not hammer rings; use proper heaters/presses.
• Maintain alignment to avoid edge stresses.
• Control lubricant cleanliness and quantity.
• Trend condition with vibration and IR temperature.