Are Shields and Seals Needed or Useful for Roller Skate Bearings?
Shields and seals are used in ball bearings to retain lubricants and prevent particulate contamination from reaching the critical surfaces. Shields are popular for most applications; seals are used where minimal clearance to light contact is required. Seals offer greater deterrence to particulate contamination, but increase torque and limit operating speed. My Grandfather “Mr. Charles Snyder”, founder of the Snyder Skate Company, did not believe in using shields because as soon as the shields were dinged or dented, they would bind and no longer ROLL as well. The shields also make a little harder to clean as well. Seals are somewhat common in today’s Roller Skate Bearings, but DO SLOW the ROLL. The suggestion is to just clean and lubricate the Bearings a little more often and especially before any big competition or event. How to Handle and Work with Bearings Ball bearings are very precise mechanisms that, in many cases, have geometrical tolerances measured in millionths of an inch. Whe
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