10 Pack Si3N4 Ceramic Bearing Balls G5 Grade 9/32 Inch Loose Balls 7.144 mm for Bicycle and Precision Bearings High Hardness Ceramic Balls for Smooth Rolling and Long Service Life textile the NJ309 outer diameter is

the NJ309 outer diameter is 100mm

NACHI supplies these mix parts (pairs) with pre-adjusted clearance

and racing applications

Single 15mm UCF202 Mounted Bearing with Square Flange

10 Pack Si3N4 Ceramic Bearing Balls G5 Grade 9/32 Inch Loose Balls 7.144 mm for Bicycle and Precision Bearings High Hardness Ceramic Balls for Smooth Rolling and Long Service Life textile the NJ309 outer diameter isTen Pack 9 32 in Ceramic Bearing Balls (Si3N4) 7. 144 mm dia (9 32 in), 10 loose balls, high strength ceramic These loose ceramic balls are precision grade Si3N4 members used in bicycle hubs, wheel bearings, linear guides, and other assemblies where low friction and high wear resistance matter. 10 pieces per pack, 9 32 in diameter (7. 144 mm) loose ceramic balls Material: high strength Si3N4 for hard, wear resistant performance G5 grade quality