1-1/4" X 1-1/4" One-Piece Split Clamp-Type Rigid Shaft Coupling/Keyways, SSMate two shafts with zero backlash Keyways provide added torque capacity and fixed shaft phasing Available with straight through or stepped bores Smooth bore protects shafts from damage Offered in High Strength and Low Profile styles Designed for aligned shafts, the 1 Piece Clamp Type Coupling makes two shafts function as one. Standard keyways provide added torque capacity and fixed shaft phasing. It is ideal for overhung or unsupported shafts and is