BK5Bovine Keratin 5
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The BK5 uses aluminum for the bellows face and the hubs, and a standard clamping action to attach to shafting.
Incorporating a Blind Mate feature into a bellow coupling design, the BK5 coupling consists of two halves.
BK5 couplings are available in sizes to accommodate a torque range of 15 to 500 Nm (133 to 4425 in.