Steatite Ceramic and 96% Alumina Ball & Socket Fish Spine Beads

ceramic ball
Ceramic Beads
ceramic spine beads

Ceramic Ball and Socket Fish Spine Beads (also called “Fish Spine Beads”),  are concave on one end and convex on the other. When ceramic ball and socket fish spine beads are strung convex to concave, the wire can flex, twist or bend and still maintain the ceramic insulation.  Applications are, but not limited to: Insulating bare electrical wire in air or vacuum systems and high temperature heating element wire insulation.

Du-Co Ceramic Ball & Socket Fish Spine Beads are available in bulk or in 6″ and 12″ paper sleeves.  For sleeved ceramic beads, insert wire through the paper tube of beads and pull string which splits and removes the paper, ceramic beads are applied in seconds.

Call DU-CO Ceramics today for more information. Custom size ceramic ball & socket fish spine beads can be manufactured to your specification.

Click on dimension header to list by size

Part No. OD ID Length Pcs./Ft. Pcs./Lb.
A-258 0.110 0.056 0.110 134 19740
A-259 0.125 0.056 0.125 110 11820
A-260 0.170 0.068 0.170 86 4450
A-261 0.200 0.092 0.200 70 2967
A-262 0.200 0.098 0.200 70 2900
A-264 0.260 0.116 0.260 54 1375
A-265 0.260 0.156 0.260 54 1549
A-1330 0.260 0.130 0.320 44 1400
A-266 0.330 0.124 0.330 42 588
A-385 0.375 0.250 0.375 38 400
A-267 0.400 0.156 0.400 34 360
A-268 0.400 0.180 0.400 34 378
A-269 0.440 0.180 0.440 34 263
A-519 0.440 0.250 0.440 34 280
A-408 0.500 0.218 0.500 29 173
A-270 0.540 0.200 0.540 27 154
A-304 0.540 0.355 0.540 27 165
A-682 0.875 0.500 0.875 13 100
This information is for design guidance only. Du-Co Ceramics Company will not guarantee this information as absolute values. Various geometries can affect properties.