Fish Spine Beads
High-purity alumina and steatite fish spine beads providing flexible insulation for curved wires, electrodes and heating elements.
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About our Fish Spine Beads
Fish spine beads are interlocking ceramic insulator beads designed to protect and insulate curved or bent wires, electrodes and heating elements where rigid insulator tubes can’t be used. Threaded along a conductor, they provide continuous electrical isolation while allowing the assembly to flex and curve around components. Available in high-purity alumina for high-temperature and high-voltage service, and in steatite for general industrial electrical applications. Both standard and custom sizes can be supplied to match specific bore, length and overall diameter requirements.
For custom sizes, special dimensions, or unique features, please contact our team for a tailored solution.
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Key Benefits of our Fish Spine Beads
What that means for you
Reliable, flexible insulation around bends and corners, greater system stability, fewer failures and longer service life — even in high-temperature electrical environments.
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Our solutions: Fish Spine Beads
Your questions answered
When should I use fish spine beads instead of insulator tubes?
Use beads wherever a conductor needs to curve, bend or flex — where a rigid insulator tube can't physically follow the path. Threaded along the wire, they provide continuous insulation while allowing flexibility.
What materials are available?
High-purity alumina for high-temperature, high-voltage service, and steatite for general industrial electrical applications.
Are custom bore and length sizes available?
Yes. Standard sizes are supplied alongside custom bore, length and overall diameter combinations to match specific wire gauges and assembly geometries.
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