470PCS Ball Bearings Assortment, G25 52100 Chrome Steel, 9 Sizes

This 470-piece ball bearings assortment provides nine fractional-inch sizes for repairing serviceable bearing assemblies. Each ball is made from G25 52100 chrome steel, a hardened bearing material selected for high surface hardness, wear resistance, and repeated rolling contact. Use the original ball diameter or equipment specification to select the correct size, clean and inspect the race before assembly, and apply the required lubricant. The assortment supports bicycle bearings, casters, drawer slides, door locks, and compatible small machinery while supplying larger quantities of commonly used smaller sizes. Store unused steel balls clean, dry, and lightly protected from moisture because 52100 chrome steel is not stainless.

• 【Sizes & Material】Nine fractional sizes range from 3/32" to 11/32". G25 balls are made from hardened 52100 chrome steel for high surface hardness, wear resistance, and rolling-contact strength; this bearing steel is not stainless and should be protected from moisture
• 【Consistent Rolling】The smooth spherical surface and controlled G25 dimensional grade help distribute contact evenly inside compatible bearing races. Hardened chrome steel resists surface wear and deformation during repeated rotation
• 【Replacement Method】Measure the original ball with a caliper or verify the equipment specification before installation. Clean and inspect the bearing race, use one matching ball diameter throughout the assembly, and apply the lubricant specified for the equipment
• 【Repair Applications】Suitable for compatible bicycle hubs, headsets, bottom brackets, pedals, casters, drawer slides, door locks, and small mechanical assemblies that use loose ball bearings. Confirm diameter, race condition, load, and lubrication requirements before replacement
• 【470-Piece Set】Includes 3/32" x 100, 1/8" x 100, 5/32" x 100, 3/16" x 80, 7/32" x 20, 1/4" x 50, 9/32" x 10, 5/16" x 5, and 11/32" x 5 for repair, replacement, backup inventory, and multi-project use.