Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo 123844 industrial component features a size 40 design with a nominal length of 66 mm, a 15 mm diameter for holder 1, and a 19 mm diameter for holder 2. This RoHS compliant part delivers a transferable torque of 21 Nm, a maximum rotational speed of 6500 rpm, and a mass moment of inertia of 42.3 kgmm² at a product weight of 139 g. Designed for any mounting position, it operates within an ambient and storage temperature range of -25 °C to 60 °C, supports 0 to 95% relative air humidity, and conforms to VDMA24364-B2-L LABS standards. Submit the exact part number, quantity, and application requirements to request a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 123844. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.