11:{"metadata":[["$","title","0",{"children":"Why ball bearings or roller bearings are used to reduce friction?"}],["$","meta","1",{"name":"description","content":"Class 9 FBISE Physics - Dynamics - Why ball bearings or roller bearings are used to reduce friction?"}],["$","meta","2",{"name":"author","content":"Editor"}],["$","link","3",{"rel":"manifest","href":"https://classnotes.xyz/site.webmanifest","crossOrigin":"$undefined"}],["$","meta","4",{"name":"keywords","content":"Physics, Dynamics"}],["$","meta","5",{"name":"creator","content":"classnotes"}],["$","meta","6",{"name":"robots","content":"index,follow"}],["$","meta","7",{"name":"application/ld+json","content":"{\"@context\":\"https://schema.org\",\"@type\":\"QAPage\",\"mainEntity\":{\"@type\":\"Question\",\"name\":\"

Why ball bearings or roller bearings are used to reduce friction?

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The fact that rolling friction is less than sliding friction is applied in ball bearings or roller bearings to reduce losses due to friction.

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