045019

What type of component is this?

This is a spring steel shaft coupling designed for backlash-free rotary transmission between two shafts. It is built to connect matching shaft ends while also helping accommodate typical alignment variation in mechanical assemblies.

What applications is this coupling suited for?

It is well suited to motion and drive arrangements where smooth torque transfer, low reset forces, and vibration isolation are important. Typical uses can include encoder connections, light-duty drive trains, positioning assemblies, and other rotating equipment that benefits from flexible shaft coupling behavior.

What shaft sizes does it accept?

This version is configured for 12 mm to 12 mm shaft connection, with d1 = 12 mm and d2 = 12 mm. That makes it suitable for joining two shafts of the same diameter.

How much torque can it transmit?

The maximum rated torque is 1.5 Nm. For applications that require continuous operation near the upper end of the torque range, it is good practice to confirm that the full mechanical setup stays within the coupling's alignment and speed limits.

What is the maximum rotational speed?

The coupling is rated for speeds up to 3000 rpm. Actual achievable speed in service can depend on shaft quality, alignment, mounting accuracy, and the overall machine design.

How much misalignment can it compensate for?

It can compensate for radial offset up to ±1.5 mm, axial offset up to ±1 mm, and angular error up to ±5°. These values make it a practical option where some shaft misalignment needs to be absorbed without introducing movable joint parts.

Does this coupling help reduce vibration?

Yes. The design is described as highly vibration-isolating, which can help reduce the transfer of vibration between connected shafts. It also offers relatively low torsional spring stiffness, which can be useful in applications where a more flexible coupling characteristic is preferred.

What are the main materials used in the construction?

The spring element is made from nickel-plated spring steel, while the end pieces are die-cast zinc. This combination gives the unit a rugged mechanical construction with a compact form.

What operating temperature range is it designed for?

The specified operating temperature range is -30 to 120 °C (-22 to 248 °F). This allows the coupling to be considered for both low-temperature and elevated-temperature industrial environments, provided the rest of the assembly is also suitable.

What are the key physical dimensions and weight?

The coupling has an outside diameter of 26 mm, an overall length of 50 mm, and a mass of approximately 100 g. These compact dimensions can make Pepperl + Fuchs 045019 a good fit where installation space is limited.

What mounting screws and tightening torques are specified?

The mounting clamp screws are M5 x 6 to DIN 916. The tightening torque for the fastening screws is specified as 1.2 Nm, while the maximum tightening torque of the clamping screws is 3 Nm.

What does backlash-free transmission mean in practical terms?

Backlash-free transmission means the coupling is intended to pass rotational movement without the free play that can appear in some mechanical connections. In practical use, this can help maintain more consistent rotational response in equipment where positional accuracy or smooth motion transfer matters.