304 Stainless Steel Ball Bearings — Precision Rolling Elements in 23 Diameters for Industrial and DIY Use
A single wrong ball diameter can cause uneven load distribution, accelerated race wear, or outright bearing failure — and sourcing the exact replacement size from multiple vendors wastes time. Engineers, maintenance technicians, and serious DIYers who maintain equipment with miniature rolling elements will find these 304 stainless steel ball bearings a dependable single-source solution, available in 23 diameters from 1.1 mm (0.043 in) to 3.0 mm (0.118 in) and in bulk pack sizes of 1,000 to 5,000 pieces.
Each ball is manufactured from 304 stainless steel — a grade recognized for its balanced combination of corrosion resistance, surface hardness, and machinability. The diameter ladder spans 1.1 mm through 3.0 mm (approximately 0.043 in to 0.118 in), covering the most common miniature and sub-miniature bearing sizes used in precision instruments, small motors, and light mechanical assemblies. Pack sizes of 1,000, 2,000, 3,000, and 5,000 pieces allow you to match order quantity to actual consumption rate.
These 304 stainless steel ball bearings are well suited for miniature bearing replacement in optical instruments and medical devices, load-distribution elements in small linear slides and drawer runners, rolling media in vibration-finishing or tumbling operations where consistent spherical geometry is required, and check-valve seats in fluid-handling assemblies exposed to mild corrosive media.
🔩 304 Stainless Steel Construction
Grade 304 alloy provides resistance to oxidation and mild corrosive environments, making these balls suitable for humid workshops, light washdown areas, and applications where carbon steel would rust prematurely.
📏 23 Diameter Options: 1.1 mm – 3.0 mm
A continuous size ladder from 1.1 mm to 3.0 mm (0.043 in – 0.118 in) lets you stock the exact diameter your assembly requires without sourcing from multiple suppliers.
📦 Bulk Pack Sizes: 1,000 – 5,000 Pieces
Choose from 1,000, 2,000, 3,000, or 5,000-piece packs. Larger quantities reduce per-unit cost and ensure replacement stock is on hand for ongoing maintenance schedules.
⚖️ Consistent Spherical Geometry
Uniform roundness across each batch supports smooth rolling action and even load distribution, reducing wear on bearing races and housings in miniature mechanisms.
🛡️ Corrosion-Resistant for Demanding Environments
304 stainless steel ball bearings outperform standard carbon steel balls in environments with moisture, mild acids, or cleaning agents — extending service intervals in light industrial settings.
🔄 Wide Application Compatibility
Suitable as rolling elements in miniature radial bearings, thrust bearings, ball screws, check valves, and tumbling/finishing media — wherever a precise, corrosion-resistant sphere is needed.
🛒 Select your Diameter and Pack Size above, then add to cart.
