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SKF four-row taper roller bearings without spacer rings cut
from SKF? SKF is well aquainted with the use of rolling bearings in rolling mills. As early as. 1922 SKF introduced rol- ler bearings as roll neck bearings in the BT4-8002 G/HA1. TQON/GW. 22,2500. 17,3228. 17,3228. 409,575. 546,100. 334,962. 334,962. 434. 498. 1. 6,4. 205. BT4-8021 G/HA1VA919. TQOSN/GWOY.