3x pendulum suspension springs, 0.05mm spring steel with brass mounting blocks — the correct light-gauge fitting for wood-stick and lighter pendulum clocks.
⭐ At a glance
📏 0.05mm spring steel, approx. 35mm x 15mm blocks
✅ Fits Hermle, Urgos, Jauch, Haller, Vienna regulator and longcase movements using a 0.05mm spring
📦 Pack of 3 springs
✔️ New, unbranded replacement part
Specifications
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Type: Suspension spring
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Material: Brass blocks with spring steel
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Finish: Brass
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Compatible Product: Anniversary/Torsion Clock, Grandfather Clock, Grandfather Wall Clock, Mantel Clock, Master Clock
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Compatible Brand: Hermle, Urgos, Jauch, Haller, Vienna, Longcase
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Compatible Model: UW03, UW66
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Item Length: 35mm
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Item Width: 15mm
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Unit Quantity: 3
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Condition: New
✅ Fits
- Urgos UW03 and UW66 series movements — common in wood-stick pendulum grandfather clocks
- Jauch wall and mantel clock movements
- Hermle wall and mantel movements using a 0.05mm spring
- Haller German clock movements
- Vienna regulator style wall clocks
- Other longcase, wall and mantel movements originally fitted with a 0.05mm suspension spring
🔧 What it does & how to use
A suspension spring supports the pendulum from the movement's back cock and lets it swing freely in beat; it's the single most common failure point that stops a pendulum clock dead, especially after being moved with the pendulum left attached. Fitting a new spring is a simple bench job for a hobbyist or repairer.
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Remove: take off the pendulum and lift out the broken spring
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Unhook: release the old spring from the back cock
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Fit: pin the upper block into the back cock, and pass the crutch pin through the lower block's hole
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Reattach: hang the pendulum back on, level the clock and set it in beat
⚠️ Please check the spring gauge before ordering — 0.05mm suits light wood-stick or lightweight lead pendulums only, and is not suitable for heavier lead pendulums (typically 0.08mm, 0.10mm or thicker). Measure your original spring if unsure.
