Steel & ceramic balls

Loose precision balls for bearings, valves, pumps, measuring and maker projects. Choose chrome steel, stainless steel or ceramic balls; the material is listed on each product page. For steel balls the grade sets how close each ball is to its nominal size and how round it is; a lower number means tighter. Sizes are listed in millimetres, including the inch-based 6.35 mm (1/4") and 12.7 mm (1/2"). Balls are sold in packs, from 10 up to 1000 pieces depending on size, and ship EU-wide from Belgium.

Need help choosing? See our steel ball grades guide and stainless vs chrome steel guide.