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
Engineered by Festo with size 40 dimensions and a nominal length of 66 mm, this industrial component features a holder 1 diameter of 11 mm and a holder 2 diameter of 15 mm. The assembly supports any mounting position, a maximum rotational speed of 6500 rpm, a transferable torque of 21 Nm, and a mass moment of inertia of 42.3 kgmm² while maintaining a product weight of 139 g. Operating within ambient and storage temperatures from -25 °C to 60 °C and 0 to 95% relative air humidity, the unit complies with RoHS material standards and VDMA24364-B2-L LABS conformity. Submit the exact part number, quantity, and application requirements to receive a quote for part number 550998.
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 550998. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.