Needle roller bearings iine roller bearings ine cylindrical rollers, maererano nehupamhi hwayo, mabheji matete uye akareba.Ronda iri rinonzi tsono roller.Kunyangwe iine diki-chikamu-chikamu, kubereka kuchiri nehupamhi hwekuremerwa, inotakura tsono ine yakanaka uye yakareba ro...
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