Festool Rotor LEX 3 Pneumatic Random Orbital Sander Spare Part

Overview

Festool Rotor LEX 3 Pneumatic Sander Spare Part Genuine Festool replacement pneumatic motor rotor for compatible Festool LEX 3 compressed-air random orbital sanders. This original internal motor component converts compressed-air energy into rotational movement through the pneumatic vane motor system. Compatible with selected LEX 3 77, LEX 3 125 and LEX 3 150 models. Designed to replace a damaged or worn original rotor during professional servicing or repair. The Festool Rotor LEX 3 (201274) is an original replacement motor component designed for the Festool LEX 3 series of pneumatic random orbital sanders. Identified in the manufacturer's spare parts documentation as Rotor LEX 3 ET-BG , this component forms the rotating element within the machine's compressed-air motor assembly. Unlike electrically powered sanders, the Festool LEX 3 series operates using compressed air supplied by an external air compressor. The pneumatic motor uses a rotor and sliding vanes to convert the energy of compressed air into mechanical rotation. The rotor is positioned within the motor's internal cylinder or sleeve assembly. As compressed air enters the motor, pressure acts on the vanes fitted into the rotor, causing the rotor to turn and transmit power to the sanding mechanism. The Festool LEX 3 sanders are designed for professional surface preparation and finishing applications where lightweight construction, reliable pneumatic operation and continuous sanding performance are important. Wear, mechanical damage or contamination of the pneumatic motor can affect rotor operation, resulting in reduced speed, loss of power, irregular running or complete motor failure. Replacing a damaged rotor with the correct genuine Festool component helps restore the original motor configuration, provided the remaining pneumatic and mechanical components are serviceable. Festool manufacturer part number 201274 identifies the original replacement rotor used in compatible LEX 3 pneumatic sanders. Compatibility Festool part number 201274 is listed in spare parts documentation for selected versions of the following compressed-air random orbital sanders: • LEX 3 77/2,5 - 77 mm Pneumatic Random Orbital Sander, 2.5 mm Sanding Stroke • LEX 3 125/3 - 125 mm Pneumatic Random Orbital Sander, 3 mm Sanding Stroke • LEX 3 125/5 - 125 mm Pneumatic Random Orbital Sander, 5 mm Sanding Stroke • LEX 3 150/3 - 150 mm Pneumatic Random Orbital Sander, 3 mm Sanding Stroke • LEX 3 150/5 - 150 mm Pneumatic Random Orbital Sander, 5 mm Sanding Stroke • LEX 3 150/7 - 150 mm Pneumatic Random Orbital Sander, 7 mm Sanding Stroke Compatible Machine Identification Numbers The replacement rotor is identified in spare parts listings for the following Festool machine article numbers: • 201153: LEX 3 77/2,5 • 201156: LEX 3 125/3 • 201157: LEX 3 125/5 • 201158: LEX 3 150/3 • 201159: LEX 3 150/5 • 201160: LEX 3 150/7 • 202882: LEX 3 77/2,5 • 202883: LEX 3 150/3 • 202884: LEX 3 150/5 • 202885: LEX 3 150/7 • 202886: LEX 3 125/3 • 202887: LEX 3 125/5 • 496675: LEX 3 77/2,5 • 496886: LEX 3 150/3 • 496887: LEX 3 150/5 • 496888: LEX 3 150/7 • 496890: LEX 3 125/3 • 496891: LEX 3 125/5 Important: Compatibility has been identified for the listed LEX 3 machines. Other Festool pneumatic sanders, including earlier LEX generations, may use different rotor assemblies. Confirm manufacturer part number 201274 against the correct machine-specific exploded spare parts diagram before ordering. Key Features • Genuine Festool Replacement: Original rotor component for compatible LEX 3 pneumatic sanders. • Pneumatic Motor Component: Forms the rotating element within the compressed-air vane motor. • Air-Powered Operation: Converts pneumatic pressure acting on the motor vanes into mechanical rotation. • Vane Motor Design: Works with the separate sliding vanes and internal motor sleeve. • Power Transmission: Provides rotational movement to the connected sanding drive mechanism. • Multiple Model Compatibility: Listed for selected LEX 3 77, LEX 3 125 and LEX 3 150 sanders. • Original Motor Configuration: Designed for the corresponding Festool pneumatic motor assembly. • Service Replacement: Allows replacement of a damaged rotor without automatically replacing the complete pneumatic motor.