Compression Spring Wire Dia 0.7mm OD9-10mm 304 Stainless Steel Vibration Damping

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Compression Spring Wire Dia 0.7mm OD9-10mm 304 Stainless Steel Vibration Damping

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By HomeDIYer®

SIZE(CSxODxL): 0.7x9x10mm

QTY(pcs): 10Pcs

Price:

$2.50 USD

Stock:

In stock (500 units), ready to be shipped

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Compression Spring 0.7mm Wire Dia — Reliable Vibration Damping in 304 Stainless Steel

Engineers, makers, and repair technicians who work with compact mechanisms know the frustration of sourcing small-diameter springs that hold their spec under repeated load cycles. These compression springs are designed for applications where consistent return force, corrosion resistance, and dimensional accuracy are non-negotiable — from precision instruments to consumer electronics and light industrial assemblies.

Each spring is formed from 304 stainless steel wire with a diameter of 0.7mm (approximately 0.028 in). The outer diameter (OD) is available in 9mm (~0.354 in) or 10mm (~0.394 in), with free lengths ranging from 10mm to 50mm (~0.394–1.969 in). The open-coil, cylindrical body provides linear spring force with a pitch suited to moderate deflection ranges.

Typical use cases include vibration isolation mounts in electronic enclosures, return mechanisms in push-button assemblies, tension balancing in small actuators, and load compensation in robotics end-effectors. The 304 stainless steel construction makes these springs well-suited for light-moisture environments, laboratory equipment, and food-adjacent tooling where mild corrosion resistance is required.

⚙️ Compatibility: Suitable for spring seats, guide pins, or bores accepting OD 9mm or 10mm. Verify free length, compressed length, and spring rate against your application before ordering.

✅ Key Features of These Compression Springs

🔩304 Stainless Steel Construction — Offers solid resistance to oxidation and mild corrosion, extending service life in humid or lightly wet environments.
📏Precise Wire Diameter — 0.7mm wire diameter delivers consistent spring rate and predictable deflection behavior across the full compression range.
🔄Vibration Damping Performance — Open-coil geometry absorbs and dissipates oscillation energy, reducing transmitted vibration in sensitive assemblies.
📦Bulk Quantity Options — Available from 10 to 200 pieces per order, supporting prototyping, small-batch production, and maintenance stock replenishment.
🎯Two OD Options — Choose OD 9mm or OD 10mm to match your bore or guide pin diameter without modification.
📐Multiple Free Lengths — Lengths from 10mm to 50mm in 5mm increments allow fine-tuning of preload and working stroke for your specific design.

📐 Technical Specifications — Compression Spring

Material	304 Stainless Steel
Wire Diameter (CS)	0.7mm (0.028 in)
Outer Diameter (OD)	9mm (0.354 in) or 10mm (0.394 in)
Free Length (L)	10mm – 50mm (0.394 in – 1.969 in)
Spring Type	Compression, Open Coil, Cylindrical
End Type	See variant options
Spring Rate	See variant options
Surface Finish	Bright (natural stainless)
Coil Direction	See variant options
Quantity per Pack	10 / 20 / 30 / 40 / 50 / 60 / 70 / 80 / 90 / 100 / 120 / 150 / 200 pcs

❓ Frequently Asked Questions

How do I choose between OD 9mm and OD 10mm?

Match the OD to your guide bore or housing inner diameter. As a rule, the spring OD should be 0.5–1mm smaller than the bore ID to allow free movement without binding. If your bore is 10–10.5mm, choose OD 9mm; if your bore is 11–11.5mm, choose OD 10mm.

What free length should I select for my application?

Select a free length that gives you the desired preload and working stroke. The compressed (solid) length is approximately equal to the number of coils multiplied by the wire diameter. For most light-duty applications, a free length 1.5–2× the required working stroke is a practical starting point.

Are these springs corrosion-resistant enough for outdoor use?

304 stainless steel provides good resistance to atmospheric oxidation and mild moisture. It is suitable for indoor, light-moisture, and occasional outdoor exposure. For continuous saltwater or highly acidic environments, 316 stainless steel would be a more appropriate choice.

What is the load capacity of a 0.7mm wire compression spring?

Load capacity depends on the OD, free length, number of active coils, and material. With a 0.7mm wire diameter, these springs are designed for light-duty loads — typically in the range of a few Newtons to tens of Newtons depending on the specific geometry. Contact us to confirm spring rate and load data for your selected size.

Can I use these springs in electronic or PCB assemblies?

Yes. The small wire diameter and compact OD make these springs well-suited for push-button contacts, battery terminals, probe pins, and PCB-mounted return mechanisms. The stainless steel material is non-magnetic (304 SS is austenitic), which is beneficial in magnetically sensitive environments.

How many pieces should I order for prototyping vs. production?

For initial prototyping and fit verification, a 10–20 piece pack is typically sufficient. For small-batch production runs or maintenance stock, 50–100 pieces offers a cost-effective per-unit price. Bulk packs of 150–200 pieces are best for ongoing production or high-turnover repair applications.

Are these springs compatible with robotics and automation applications?

Yes. These compression springs are used in robotics end-effectors, gripper return mechanisms, and sensor probe assemblies where consistent spring force and compact dimensions are required. Verify the spring rate and solid height against your actuator travel and force budget before finalizing your design.

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