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Stepped rigid bore couplings now include keyways

Stepped rigid bore couplings now include keyways

Ruland now offers stepped bore rigid couplings with standard keyways in each bore. The couplings are two-piece style allowing for easy assembly and disassembly without moving other components. Hardware is opposing for balance, allowing for higher speeds with reduced vibration. Since these couplings have zero-backlash they are ideal for motion control applications. Shaft to shaft connections are another common application for rigid couplings.


Keyways increase the torque capacity of the coupling by creating a positive drive while also ensuring precise rotational positioning of the shafts. The added torque capacity provided by the keyway may be needed in applications with shock loads due to sudden starts and stops or reversals, when the bore is small relative to the coupling OD, when the shaft may be undersized, or when temperature changes may alter the size of the shaft or the bore in application. Precise rotational positioning may be needed in applications where phasing of the shafts is important for timing.


Ruland rigid couplings are offered in one- or two-piece styles in aluminum, black oxide carbon steel, and stainless steel with bore sizes from 1/8in to 2in in the inch series and 3mm to 50mm in the metric series. 


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