The R-Flex coupling is a versatile, easily installed rotary sensor coupling that corrects for most types of rotary sensor shaft misalignment. R-Flex provides excellent hysteresis free repeatability. The unique six-beam R-Flex design also provides superior performance under the most severe misalignment conditions. R-Flex is the perfect coupling for all Shaevitz® rotary sensors as it does not degrade the high level of repeatability and resolution of the transducer. Six-beam construction Integral clamps 2024-T3.51 anodized aluminum Mates to multiple shaft sizes Diameter: 0.75" (19.05 mm) Length: 0.75" (19.05 mm) Clamping Length: 220" (5.59 mm) Clamping Screw : 2-56 socket head cap screw Bore Diameters: B1 = 0.1875" (+0.001 - 0.000) (4.76 mm)