Samsung Spider Arm Failure . The tub bearing is mounted in the middle of the outer tub. The other day as it was finishing the final spin. Here we have the spider arm assembly from a 3 year old Samsung washing from www.reddit.com I wasn't saying that an aluminum or zinc spider arm is guaranteed to fail in xx years, it may last for decades. It appears that the outer seal plate to the outer bearing had come into contact with the pulley and ground itself down to. Samsung washing machine spider corrosion [down to last] cool washer stuff on amazon: