Miki Pulley SPR Flex

Miki Pulley SPR Flex uses a simple design that sandwiches a rubber buffer, made from nitrile rubber, between two hubs. Since the hub is made from aluminum alloy, it stays lightweight while still holding up well during operation.

Mounting is easy too. You just hold a straight edge against the hub’s outer edge to center it on the shaft, so there’s no complicated alignment process involved. Because the overall construction is so simple, it also comes at a lower cost, which makes it an appealing choice when you don’t need the extra features of a more complex coupling.