Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter
Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter
Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter
Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter
Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter
Roll over image to zoom in Click on image to zoom
Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm DiameterChrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm DiameterChrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm DiameterChrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm DiameterChrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter

Chrome Steel Stainless Ball Bearings 1/2/3/4/5/6/7/8/9/10/14/15~30mm Diameter

HomeDIYer
No reviews

By HomeDIYer®

Price:
$1.97 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact BLIK Diners Club Discover EPS Google Pay iDEAL Wero JCB Maestro Mastercard Multibanco MobilePay PayPal Przelewy24 Shop Pay Twint Union Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Limited Offer — Spend More, Save More
Spend $55+
Save $5
Spend $100+
Save $10
Spend $200+
Save $25
✅ Discount applied automatically at checkout 🚚 Free shipping on orders over $89
HomeDIYer DIY Expert Support

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri  8:30 AM – 8:00 PM
WhatsApp
24-Hour Fast Ship
Arrives in 3–14 Days
Worldwide Shipping
30-Day Returns
1 tree planted with every purchase

Description

Chrome Steel & Stainless Ball Bearings — Precision Diameter Selection from 1 mm to 30 mm

When a loose fit, premature wear, or out-of-tolerance rolling element derails your project, the root cause is almost always an imprecise ball diameter. Engineers, makers, and maintenance technicians who need exact sizing — not a close-enough approximation — rely on chrome steel and stainless ball bearings that hold tight dimensional tolerances across every size in the range.

These chrome steel stainless ball bearings are available in diameters spanning 1 mm (≈0.04") through 30 mm (≈1.2"), covering both metric and fractional inch equivalents. The lineup includes standard round sizes such as 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25.4, and 30 mm, as well as precision-ground fractional sizes (e.g., 3/32", 7/64", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8", 1/2", and 3/4") to match both metric and imperial assemblies. Quantities are available in packs of 1, 10, 100, and 1,000 pieces.

Typical applications include DIY drawer slides and linear guides, RC car and drone drivetrain assemblies, 3D printer extruder and axis bearings, skateboard and longboard wheel bearings, robotic joint and actuator mechanisms, and light industrial conveyor or spindle replacements — wherever a smooth, low-friction rolling element is required.

🔧 Compatibility: Suitable for standard bearing housings, races, and retainers designed for the selected diameter. Verify bore and race dimensions before ordering. Both metric and fractional inch sizes are available — check the Dia option for the exact decimal equivalent.

✅ Key Features of These Chrome Steel Stainless Ball Bearings

⚙️
Wide Diameter Range

Covers 1 mm through 30 mm in a single listing, including metric standards and fractional inch equivalents, so you can source the exact size your assembly demands.

🔩
Chrome Steel Construction

Manufactured from chrome steel (typically AISI 52100 grade) for high hardness, load capacity, and fatigue resistance in rolling contact applications.

💧
Corrosion-Resistant Option

Stainless steel variants in the range offer improved resistance to moisture and mild chemicals, extending service life in damp or lightly corrosive environments.

📦
Flexible Pack Quantities

Order as few as 1 piece for prototyping or up to 1,000 pieces for production runs — quantity pricing scales accordingly so you only buy what you need.

📐
Precision-Ground Spherical Surface

Each ball is ground and lapped to a consistent spherical form, minimizing runout and vibration in high-speed or precision-positioning applications.

🛠️
Broad Application Compatibility

Fits standard bearing races, linear guides, ball screws, casters, and custom housings across DIY, robotics, RC, 3D printing, and light industrial use cases.

📐 Technical Specifications — Chrome Steel Ball Bearings

Material Chrome steel (AISI 52100 equivalent) / Stainless steel (see variant options)
Diameter Range 1 mm – 30 mm (≈0.04" – 1.2"); metric and fractional inch sizes available
Surface Finish Ground and lapped spherical surface
Hardness See variant options
Grade / Tolerance See variant options
Pack Quantities 1 / 10 / 100 / 1,000 pieces
Application Type Rolling element, linear guide, caster, custom housing
Corrosion Resistance Standard chrome steel: moderate; Stainless variants: improved

❓ Frequently Asked Questions

How do I choose the right diameter for my application?

Measure the inner diameter of your bearing race or housing with a caliper. Select the Dia option that matches that measurement exactly — both the mm value and the inch equivalent are shown in each option label. If you are replacing an existing ball, measure the worn ball or consult the original equipment specification sheet.

What is the difference between chrome steel and stainless steel ball bearings?

Chrome steel (AISI 52100) offers higher hardness and load capacity, making it the standard choice for most dry or lightly lubricated mechanical applications. Stainless steel provides better resistance to moisture, humidity, and mild chemicals, which is preferable in food-adjacent, outdoor, or marine environments where rust is a concern.

Are these balls suitable for high-speed applications such as spindles or RC drivetrains?

Yes. The ground and lapped spherical surface minimizes runout, making these balls compatible with moderate-to-high-speed assemblies including RC car differentials, drone motor shafts, and light spindle bearings. For extreme-speed or precision-instrument applications, confirm the grade tolerance with us before ordering.

Can I use these ball bearings in 3D printer axes or extruder assemblies?

Yes. Common 3D printer bearing sizes such as 3 mm, 4 mm, 5 mm, and 6 mm are all available in this listing. Select the matching Dia and your preferred quantity. These balls are compatible with standard LM-series linear bearings and V-slot wheel bearings used in most FDM printers.

What quantity should I order for a repair versus a production run?

For a single repair or prototype, the Qty 1 or Qty 10 options are the most economical. For batch production or stocking a workshop, Qty 100 or Qty 1,000 packs offer a lower per-unit cost. The price per ball decreases as quantity increases, so order the pack size that matches your expected usage over the next few months.

How do I verify the exact inch equivalent for a fractional-size ball?

Each Dia option label shows both the metric value and the inch decimal equivalent in parentheses — for example, "3.175 mm ≈ 0.127"" corresponds to a 1/8" ball. Cross-reference this decimal with your housing drawing or OEM specification to confirm compatibility before placing a bulk order.

Do these ball bearings require lubrication before installation?

For most rolling-element and linear-guide applications, applying a light machine oil or bearing grease before installation extends service life and reduces break-in wear. Stainless steel variants in corrosive or wet environments benefit from a water-resistant grease. Chrome steel balls in dry or sealed assemblies may be used as-received, but lubrication is generally recommended.

🛒 Select your Dia and Quantities above, then add to cart.

 

You may also like

Recently viewed