SMC JA40-12-125 Floating Joints

SMC JA40-12-125 is a standard-type floating joint for JA-series pneumatic actuators, designed to absorb misalignment between the cylinder rod and the load while transmitting axial force. This listing includes the JA40-12-125 and NJ07 floating joints in factory bags. The JA40-12-125 features a male M12 x 1.25 thread and carbon steel construction, compatible with JA-series cylinders that use bore sizes around 30–40 mm; it offers an allowable eccentricity of 0.75 mm and a maximum operating tension and compression force of 4,400 N. Its center-of-sphere radius is 27 mm, maximum thread depth is 13 mm, and its weight is about 0.28 kg. The NJ07 floating joint, for use with NJ-series actuators, uses a 7/16-20 UNF nominal thread. Together, these joints provide a compact, rugged connection option for pneumatic systems where angular misalignment must be accommodated, helping to reduce side loading and wear while maintaining smooth, linear motion.