Article: Ergonomic bell-shaped knobs.(Medical Electronics)

Elma Electronic has introduced its bell-shaped, or "top-hat", knobs in two finishes. The shape is said to be ergonomic and space saving. These 16 mm knobs come in soft touch or hard plastic designs with several indicator line orientations. The bell or top-hat shaped knobs accept standard, "pan European" D-shape for 6 mm shafts with a 4.5 mm flat. Indicator lines or dots for pointing references come in various orientations: flat of shaft to 0[degrees], 90[degrees], 180[degrees] and 270[degrees]. The indicator lines are available in blue ...

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