Unibridge Retaining ring for shafts - normal type DIN 471 Spring steel Black-oxide or Zinc Flake maximum spread of 1.01 x d1 is recommended

Open these rings, pass them over the end of a shaft, and release to spring into the groove. Ring ID is measured with the ring uninstalled. Use retaining ring pliers (sold separately) to install and remove rings. spring steel rings are an economical choice with good strength. A black-phosphate finish is mildly corrosion resistant in dry environments. In wet environments, a zinc yellow-chromate plated finish has some corrosion resistance, and a zinc chromate plated finish has good corrosion resistance. DIN 1.4122 stainless steel rings withstand wear caused by abrasion, similar to 400 series stainless steel. They also resist corrosion in wet environments. Thrust load capacity, also known as PR, is based on using a shaft that is harder than the ring.