Solid Iron Ball Bearings Size 7mm-70mm Steel Ball Bearings Rolling Roller Beads

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Beschreibung

Solid Iron Steel Ball Bearings — Reliable Rolling Elements for DIY and Mechanical Applications

When a worn bearing seat, a stiff drawer slide, or a seized pivot point brings a project to a halt, having the right replacement ball bearing on hand makes the difference between a quick fix and a costly delay. DIY enthusiasts, maintenance technicians, and small-shop machinists who need a dependable rolling element without ordering a full bearing assembly will find these solid iron steel ball bearings a practical, cost-effective solution.

These solid iron steel ball bearings are available in diameters ranging from 7mm (approx. 0.28 in) to 70mm (approx. 2.76 in), covering a wide span of standard and metric sizes including 7, 7.5, 8, 8.5, 9, 9.5, 10, 11, 12, 12.7, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 25.4, 26, 27, 28, 29, 30, 32, 35, 38, 40, 42, 45, 50, 60, 62, and 70mm. Pack sizes range from 1 to 100 pieces to suit single-unit repairs or bulk restocking needs.

Typical use cases include replacing loose or corroded balls in drawer slides and cabinet hardware, serving as load-transfer elements in DIY jigs and fixtures, acting as check-valve seats in fluid systems, and functioning as rolling media in small-scale tumbling or finishing setups. The broad size range also makes these steel ball bearings suitable for hobbyist robotics, model engineering, and educational mechanics demonstrations.

⚙️ Compatibility Note: Verify the required ball diameter against your housing or race bore before ordering. Sizes 25.4mm and 12.7mm correspond to standard imperial equivalents (1 inch and 1/2 inch respectively). Contact us to confirm fit for critical load-bearing applications.

✅ Key Features of These Solid Iron Steel Ball Bearings

  • 📏 Wide Size Range: Diameters from 7mm to 70mm cover metric and common imperial-equivalent sizes in a single product line, reducing the need to source from multiple suppliers.
  • 🔩 Solid Iron Construction: Manufactured from solid iron with a steel-grade surface, providing consistent roundness and hardness suitable for moderate-load rolling and sliding contact applications.
  • 🔄 Smooth Spherical Surface: Ground to a uniform spherical profile that allows low-friction rolling in races, guides, and seats without requiring additional machining in most standard housings.
  • 📦 Flexible Pack Quantities: Available in packs of 1, 2, 3, 5, 10, 20, 25, 50, and 100 pieces — order exactly what the job requires, from a single replacement to a bulk workshop supply.
  • 🛠️ Broad Application Fit: Suited for drawer slides, pivot assemblies, check valves, jig components, tumbling media, model engineering, and educational mechanics setups across a range of industries.
  • ⚖️ Consistent Dimensional Accuracy: Each ball is sized to its stated diameter, allowing direct substitution in standard metric bearing races and housings without additional fitting or grinding.

📐 Technical Specifications — Solid Iron Steel Ball Bearings

Material Solid iron (steel-grade)
Surface Finish Ground spherical
Diameter Range 7mm – 70mm (approx. 0.28 in – 2.76 in)
Available Sizes 7, 7.5, 8, 8.5, 9, 9.5, 10, 11, 12, 12.7, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 25.4, 26, 27, 28, 29, 30, 32, 35, 38, 40, 42, 45, 50, 60, 62, 70mm
Pack Sizes 1, 2, 3, 5, 10, 20, 25, 50, 100 pcs
Shape Spherical (solid ball)
Tolerance Class See variant options
Max Load Rating See variant options
Corrosion Resistance Contact us to confirm
Color / Finish Metallic grey (bare iron/steel)

❓ Frequently Asked Questions

How do I choose the correct ball bearing diameter for my application?

Measure the inner diameter of the race or housing seat with a caliper. The ball diameter should match that measurement within the tolerance specified by the original equipment. For replacement applications, the worn ball's diameter can also be measured directly. If you are between two sizes, the smaller diameter is generally safer to avoid binding.

Are these ball bearings suitable for load-bearing structural applications?

These solid iron steel ball bearings are designed for moderate-load rolling and sliding contact use — such as drawer slides, pivot points, jig components, and light machinery. For heavy-load structural or high-speed precision bearing assemblies, consult the load rating specifications and contact us to confirm suitability before ordering.

Do these balls offer corrosion resistance for wet or outdoor environments?

Solid iron steel balls have limited inherent corrosion resistance compared to stainless steel alternatives. For applications exposed to moisture, chemicals, or outdoor conditions, we recommend applying a light coating of machine oil after installation, or contacting us to discuss whether a stainless steel variant better suits your environment.

Are the 25.4mm and 12.7mm sizes compatible with standard imperial bearing housings?

Yes. The 25.4mm size corresponds to a 1-inch diameter and the 12.7mm size corresponds to a 1/2-inch diameter, making them direct metric equivalents of common imperial ball sizes. They are dimensionally compatible with standard imperial-spec races and housings that accept 1-inch and 1/2-inch balls respectively.

Which pack size should I order for a single repair versus a workshop stock?

For a single replacement — such as one missing ball in a drawer slide or check valve — the 1-piece pack is the most cost-efficient option. For workshop restocking or projects requiring multiple balls of the same size, the 10, 25, 50, or 100-piece packs offer a lower per-unit cost. Select the pack size that matches your expected usage volume to avoid over-ordering.

Can these ball bearings be used as rolling media in tumbling or finishing equipment?

Yes. Solid iron steel balls are commonly used as burnishing media in rotary tumblers and vibratory finishing machines to deburr, polish, or work-harden metal parts. Select a ball diameter that is smaller than the smallest opening in your tumbler barrel to prevent jamming. The 7mm–15mm range is typically used for small-part finishing applications.

🛒 Select your Ball Bearing Size and Pack Size above, then add to cart.

 

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