Catalog

Ring jewels are excellent for oscillating movement, slow arcing motion and sliding applications because they have extremely low breakaway friction and starting torque.

Vee bearings are available in sapphire, ruby, hard Pyrex glass and tungsten carbide materials.

Vee and cup type jewel bearings afford one of the lowest coefficient of friction in the miniature instrument bearing field. (Approximately 0.12 steel on sapphire) Several reasons account for this. Foremost, vee bearings provide point contact with the moving shaft element. Other miniature bearing types have line contact. Secondarily, the sapphire and glass materials offer low elastic deformation characteristics.

Vee bearings are available in sapphire, ruby, hard Pyrex glass and tungsten carbide materials.

Vee and cup type jewel bearings afford one of the lowest coefficient of friction in the miniature instrument bearing field. (Approximately 0.12 steel on sapphire) Several reasons account for this. Foremost, vee bearings provide point contact with the moving shaft element. Other miniature bearing types have line contact. Secondarily, the sapphire and glass materials offer low elastic deformation characteristics.

Vee bearings are available in sapphire, ruby, hard Pyrex glass and tungsten carbide materials.

Vee and cup type jewel bearings afford one of the lowest coefficient of friction in the miniature instrument bearing field. (Approximately 0.12 steel on sapphire) Several reasons account for this. Foremost, vee bearings provide point contact with the moving shaft element. Other miniature bearing types have line contact. Secondarily, the sapphire and glass materials offer low elastic deformation characteristics.

Bird Precision cup Jewel bearings are available primarily in Hard Pyrex glass, and Synthetic sapphire materials. Ruby material is also possible. But special applications may warrant Tungsten Carbide for more rugged performance. Bird Precision cups have been found in compasses for the American cup races. Pocket and lensatic hand held type compass. Geologic water turbine flow meters, water meters, hot air motor mechanisms, deep hole drilling directional instrumentation, and a host of marine navigational equipment.

Synthetic Sapphire and, particularly, Synthetic Ruby materials are quickly becoming the jewels of the industry.

For companies who are producing a specific product, these materials make an immediate statement about quality. For instance, watches often feature, on their face, that all movements are fully jeweled. Furthermore, many ball point companies exclusively use ruby ball tips which offer a smoother and finer writing quality.