Precision Balls of 2025
Best Choice1
BBMBainewstar14% Off5 Pcs 1" Super Precision Bearing Balls, G16 Chrome Deep Groove Balls
Main highlights- Product name:GCr15 High Hardness Steel Precision Balls（G16）
- Premium GCr15 Bearing Steel Materiall: Crafted from high-grade GCr15 alloy steel (AISI 52100/SUJ2 equivalent) with hardness up to HRC 60-65, our steel balls deliver exceptional wear resistance and long service life, ideal for heavy-duty applications like automotive bearings and industrial machiner
- Precision-Grade G16: Strictly manufactured under GB/T308-2002 standards, these 1 inch (25.4mm) steel balls ensure stable performance in precision equipment, balancing cost-efficiency with reliable tolerance control for robotics, conveyor systems, and mechanical assemblies
- Multi-Industry Application Perfect for: Automotive wheel bearings & transmission systems 3D printer guide rails & CNC machine components Material handling equipment rollers Exercise equipment components DIY projects requiring durable spherical
- Certified Quality Assurance:Each batch includes material composition reports and ISO-certified inspection data, guaranteeing consistent dimensional accuracy (±0.01mm) and surface finish. Produced in dust-free workshops with advanced grinding technology
- Anti-Corrosion Oil Coating：Pre-treated with rust-inhibiting lubricant and sealed packaging to maintain optimal condition during transoceanic shipping. Compatible with aerospace lubricants and high-temperature environments
9.7Exceptional
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Value for Money2
weideerweideer 600pcs 12 Size Stainless Steel Precision Steel Balls 1-8mm Metric Bicycle Bearing Balls Assortment Kit Mixing Balls 1mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 7mm 8mm K-085-600
Main highlights- Widely used in auto parts, motorcycles, bicycles bearings, casters, drawer slides etc. It can also be used as a mixing balls. Used to stir paint, nail polish, etc
- The surface is coated with a small amount of grease to reduce friction when the bearing rotates and prevent corrosion and rust.Will reduce the damage to the machine and extend the service life.
- Storage box packaging. steel balls are sorted by size and stored in compartments of the box. There are explanatory drawings. Easy to identify and store.
- Made of 304 Stainless Steel.Uniform size, high wear resistance, high precision， smooth surface, no burr, exquisite appearance.
- 600pcs 12 size precision steel balls assortment kit contains:90pcs1mm 80pcs2mm 80pcs2.5mm 50pcs3mm 50pcs3.5mm 50pcs4mm 50pcs4.5mm 50pcs5mm 30pcs5.5mm 30pcs6mm 20pcs7mm 20pcs8mm.
9.6Exceptional
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3
TaissTaiss 620PCS 304 Stainless Steel Precision Balls,Bicycle Bearing Balls Assortment Kit,6 Sizes Steel Balls 1/4" 7/32" 3/16" 5/32" 1/8" 3/32",Precision Steel Ball F-086-620PCS
Main highlights- Widely used in:Bearing Balls are Widely used in bicycles,casters,door locks,drawer slides and auto parts,etc.
- Product specifications:6 size precision steel balls assortment kit 1/4"(6.35mm),7/32"(5.55mm),3/16"(4.763mm),5/32"(3.969mm),1/8" (3.175mm),3/32"(2.381).
- Product packaging:1/4" 100PCS + 7/32" 100PCS + 3/16" 100PCS + 5/32" 100PCS + 1/8" 100PCS + 3/32" 120PCS；6 sizes, a total of 620PCS, packed in a box.
- Product name:Stainless Steel Bicycle Bearing Balls Precision Balls.
- Product material:Precision steel balls are made of 304 stainless steel, with high precision,smooth surface, rust prevention, corrosion resistance, wear resistance and exquisite appearance.
9.5Excellent
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4
TaissTaiss 490PCS Precision Balls 8 Sizes,Bicycle Bearing Balls 1/2" 3/8" 1/4" 7/32" 3/16" 5/32" 1/8" 3/32" Precision Steel Ball Assortment Kit,Metal Balls F-099-490PCS-GE
Main highlights- Widely used in:steel balls are Widely used in bicycles,casters,door locks,drawer slides and auto parts,etc.
- Product name:Precision Steel Ball Assortment Kit（8 sizes）
- Precision steel ball has high precision, smooth surface, rust prevention, corrosion resistance, wear resistance and beautiful appearance.
- Packaging Content:4PCS 1/2"+ 6PCS 3/8"+ 50PCS 1/4" + 50PCS 7/32" + 80PCS 3/16" + 100PCS 5/32" + 100PCS 1/8" + 100PCS 3/32"；8 sizes, a total of 620PCS, packed in a box.
- 8 Size Precision Steel Balls Assortment Kit: 1/2"(12.7mm),3/8"(9.525mm),1/4"(6.35mm),7/32"(5.55mm),3/16"(4.763mm),5/32"(3.969mm),1/8" (3.175mm),3/32"(2.381).
9.4Excellent
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5
TansticTanstic 330Pcs 16 Size Metric Precision Steel Bearing Steel Ball Assortment 1mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm
Main highlights- [Product Function]: These bearing balls are installed between the inner ring and the outer ring to reduce friction when the bearing rotates. It can strength the protection to machine and extend the service life.
- [Most Popular Size]: 16 different size for you to choose: 1mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, total 330pcs. All bearing balls are packed in a storage box avoiding mess and loss. The sixteen-size assembly can meet most of your bearing needs in life.
- [Material]: Made of high quality steel, which is hard, anti-rust and durable. High-hardness and high-precision. Smooth surface give you comfortable touch.
- [Applications]: It can be used in humid environments. Suitable for auto parts, bicycles, valves, refrigerators, air conditioners, bearings, photographic equipment, drawer slides and many other applications.
- [After-Sales Service]: Any questions or dissatisfaction about our products, free come to us for help. We will deal with the problem for you in time.
9.3Excellent
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6
BreezliyBreezliy 304 Stainless Steel Ball 620Pcs 1-8mm Metric Precision Assorted Loose Bicycle Bearing Steel Ball Assortment Kit（12 Sizes）
Main highlights- [Wide application] Widely used in motorcycles, bicycles, casters, household furniture, door locks, drawer slides and many other applications.
- [Product function]: These bearing balls are installed between the inner ring and the outer ring to reduce friction when the bearing rotates. Will reduce the damage to the machine and extend the service life.
- [Performance] The surface is coated with a small amount of grease to improve lubrication and prevent corrosion and rust. It is suitable for humid environments. The heat treatment process makes the bearing ball very strong, not easily deformed for a long time and can withstand voltage.
- [High-quality material] It is made of high-quality 304 Stainless steel, high-precision machine, corrosion-resistant, high-precision, high-hardness, smooth and burr-free.
- [12 sizes of bearing balls] The precision steel bearing ball classification kit contains 12 sizes: 1mm2mm2.5mm3mm3.5mm4mm4.5mm5mm5.5mm6mm7mm8mm, total 620pcs, and packed in a plastic box, they are easy to distinguish.
9.2Excellent
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7
Breezliy(200 Pieces) Breezliy- 6mm (0.236") Precision Steel Bearing Balls G25 304 Stainless Steel Ball
Main highlights- Weight: 0.0311 ounces (0.88183 grams)
- ISO 9001:2008 Provides higher quality and durability, reducing replacement and maintenance cost
- G25 304 Stainless Steel Bearing Balls
- Diameter: 6 millimeters (0.23622 inches)
- Application:Stainless steel balls are primarily used in precision ball bearings, bicycles, casters, drawer slides, door locks, target shooting, and many other applications.
9.0Excellent
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8
ywchosheywchoshe 600 Pcs Metric Precision Steel Bearing Balls, Assorted Stainless Steel Loose Bicycle Bearing Steel Balls, Meal Bearing Steel Ball Assortment Kit, 2/2.5/3/3.5/4/4.5/5/5.5/6/7/8/9/10 mm
Main highlights- Wide Range of Applications: The stainless steel balls set is an ideal tool for bicycles to replace front and rear wheel bearings and bottom brackets, keeping the pedaling process smooth and efficient. Widely used in bicycles, motorcycles, auto parts, bearings, casters, drawer slides, door locks, home furniture, aerospace, instrumentation, and many other applications.
- Package includes: You will receive a total of 600 pcs bicycle ball bearings, including 120 pcs 2mm, 80 pcs 2,5mm, 60 pcs 3mm, 60 pcs 3,5mm, 50 pcs 4mm, 50 pcs 4,5mm, 50 pcs 5mm, 30 pcs 5,5mm, 30 pcs 6mm, 20 pcs 7mm, 20 pcs 8mm, 15 pcs 9mm, 15 pcs 10mm. All steel ball bearings are packed in a sturdy plastic storage box with multiple different compartments, stored by size, easy to store, transport and use.
- Function of Steel Ball Bearings: A ball bearing is a rolling bearing used to carry loads, reduce friction and position movement. Ball bearings use stainless steel ball bearings to reduce surface contact and friction between moving planes.
- Exquisite Material: All bearing balls are made of high-quality stainless steel with smooth polished surface, corrosion resistance, rust resistance, strong toughness, strong oxidation resistance, and can maintain high performance in harsh environments, and durable.
- Easy to Use: These ball bearings stainless steel used to installed between the inner and outer rings, which can be used to reduce the friction when the bearings rotate, thus reducing the speed of the ball bearings and extending the life of the machine.
8.9Very Good
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9
ZOYOPRECISION3/8 inch (100pcs) Chrome Steel Bearing Balls - G25 Precision Bearing Steel Ball - Outstanding Performance and Durability
Main highlights- Size - 3/8" Diameter Grade G25 Chrome Steel Bearing Balls
- Notice - Confirm the Ball Diameter before ordering.
- Material - Made of chrome steel with excellent surface quality, high hardness, high load capacity, and wear resistance.
- Features - Wide range of applications(maintain industrial equipment or use for family DIY projects); Cost-effective(can repair existing products)
- Applications - Maintain product that uses steel balls, such as ball bearings, turntable, drawer slides, casters, door locks; DIY projects like a keychain, or adding weight for your projects, etc.
8.8Very Good
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10
weideerweideer 430pcs Stainless Steel Precision Steel Balls Bicycle Bearing Balls Metal Mixing Balls Assortment Kit 1/4" 7/32" 3/16" 5/32" 1/8" 3/32" K-086-430
Main highlights- Widely used in auto parts, motorcycles, bicycles bearings, casters, drawer slides etc. It can also be used as a mixing balls. Used to stir paint, nail polish, etc
- The surface is coated with a small amount of grease to reduce friction when the bearing rotates and prevent corrosion and rust.Will reduce the damage to the machine and extend the service life.
- Storage box packaging. steel balls are sorted by size . There are explanatory drawings. Easy to identify and store.
- Made of 304 Stainless Steel.Uniform size, high wear resistance, high precision， smooth surface, no burr, exquisite appearance.
- 430pcs 6 size precision steel balls assortment kit contains:50pcs1/4" 50pcs7/32" 50pcs3/16" 80pcs5/32" 100pcs1/8" 100pcs3/32".
8.6Very Good
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