Rear wiper gear Mercedes B200 w246 115c 61.6 mm

This is a detailed description for the 3D model of the rear wiper gear gear for Mercedes-Benz B-Class (W246). Given your parameters (115 teeth and a diameter of 61.6 mm), this part is critical to restoring the operation of the wiper. Rear wiper gear gear Mercedes-Benz B-Class (W246) Problem: The rear wiper stop on a Mercedes W246 is often caused by wear on the teeth of the large plastic gear in the gearbox. Due to the shaft souring or the brush freezing to the glass, the motor licks the teeth and the mechanism stops rotating. The original unit is supplied only assembled with the motor, which is expensive, and buying a used spare part does not guarantee long-term operation. Solution: This 3D model is intended for the production of a reinforced duplicate gear. It completely restores the transmission of torque from the worm shaft to the driver mechanism. Part Specifications: Compatibility: Mercedes-Benz B200 / B-Class (W246). Number of teeth: 115. External diameter: 61.6 mm. Transmission type: Helical (worm gear). Accuracy: The model is made taking into account the necessary thermal clearances for operation in a closed gearbox housing. 3D Printing Recommendations: Since the gear operates under friction and constant loads, it is extremely important to choose the right material for your printer (for example, Bambu Lab P1S will handle this perfectly): Material: Nylon (Nylon) or PA6-CF / PA12-CF (nylon with carbon fiber). These are the best materials in terms of friction coefficient and wear resistance. As a last resort, you can use PETG, but the resource will be lower. PLA and ABS are not suitable. Filling: 100% (Solid) to ensure the rigidity of each tooth. Layer height: 0.1 – 0.12 mm. The thinner the layer, the higher the contact area with the worm and the less wear. Walls (Perimeters): At least 4-5 lines. Replacement instructions: Disassemble the gearbox housing and remove any remaining old plastic chips. Important: Be sure to remove the wiper shaft, clean it of corrosion and lubricate it. If the shaft rotates slowly, the new gear will also quickly fail. When installing the printed part, use a generous amount of lithium or silicone grease. Make sure that the metal mating part (rod) fits snugly into the mounting hole of the new gear. Benefits: Savings: The cost of printing is not comparable to the price of a new motor. Availability: Repairs can be made on the day of the breakdown, having a 3D printer at hand. Reliability: When using nylon, the part lasts for years.