1.Product Overview The 7002HTDF is factory pre-ground matched DF face-to-face duplex angular contact ball bearing. HT stands for high temperature reinforced glass fiber nylon cage, with standard 20° contact angle open design. DF face-to-face pairing structure delivers stable bidirectional axial rigidity and strong anti-tilting capacity, specially designed for miniature high-speed spindles, precision testing equipment and small high-speed rotary shafts requiring high