RS PRO Steel Extension Spring, 87.2mm x 20mm
- RS Stock No.:
- 121-400
- Brand:
- RS PRO
111 In stock for delivery within 7 working day(s)
Added
Price (ex. GST) Each (In a Pack of 3)
$9.087
(exc. GST)
$10.45
(inc. GST)
| Units | Per unit | Per Pack* |
| 3 - 12 | $9.087 | $27.261 |
| 15 + | $7.477 | $22.431 |
| *price indicative | ||
- RS Stock No.:
- 121-400
- Brand:
- RS PRO
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- GB
Product Details
Music Wire Extension Springs
Manufactured from high tensile strength piano/music wire, with a right-hand (clockwise) helix and looped ends.
Features and Benefits
Attached at both ends
Springs absorb and store energy
Create resistance to pulling force
Initial tension manipulation can achieve individual requirements
Wound to oppose extension
Springs absorb and store energy
Create resistance to pulling force
Initial tension manipulation can achieve individual requirements
Wound to oppose extension
Applications:
Automotive interiors and exteriors
Garage door assemblies
Vise-grip pliers
Carburetors
Trampolines
Washing devices
Farm machinery
Garage door assemblies
Vise-grip pliers
Carburetors
Trampolines
Washing devices
Farm machinery
Standards
Materials to DIN17223 Class C or BS1408 CR3. Dimensions conform to DIN2097 Grade 2. Oiled finish.
RS PRO Steel Extension Spring
Get the power you need with RS PRO Extension Spring! This heavy-duty extension spring is perfect for any application, no matter the load capacity or operating temperature. It's made of highly magnetic steel music wire for up to 757.0 newtons of force and can operate up to 250°F (121°C). Plus, its oil finish is dry to the touch for extra corrosion resistance. Get the reliable performance you need with RS PRO Extension Spring!
How do they work?
Extension springs are coils attached by two components from both ends of the spring. When pulled apart the extension springs pull them back together again. The springs' tension can be adapted depending on the application load requirements.
Why would you choose RS PRO for Extension springs?
Extension springs are often the least expensive part of your assemblies, failure can mean costly machine downtime and product rejects. To ensure quality and longer reliability RS PRO offer a range of steel extension springs with various spring rates and length to suit your application.
Features and Benefits
- Highly magnetic steel music wire per ASTM A228 for greater strength than stainless steel
- Full twist loop ends for secure fastening
- Load capacity of 757.0 newtons
- Maximum operating temperature of 250 degrees F (121 degrees C)
- Dry to the touch oil finish for added corrosion resistance
Application
- Automotive engines
- Appliances
- Medical devices
- Electronics
- Measuring instruments
Standards
Materials to DIN17223 Class C or BS1408 CR3. Dimensions conform to DIN2097 Grade 2. Oiled finish.
Specifications
Attribute | Value |
|---|---|
| Material | Steel |
| Free Length | 87.2mm |
| Maximum Extended Length | 103.4mm |
| Outside Diameter | 20mm |
| Wire Diameter | 4mm |
| Initial Tension | 757N |
| Spring Rate | 39.7N/mm |