textile machine bearings

Detailed Product Description

Drawn-cup, full-complement needle bearings consist of a deep-drawn cup (the outer race) with a full complement of needles. In some needle bearings the needles are retained by the cup lips, in others they are retained by the grease. Spherical-ended, rather than trunnion-ended, rollers are used in the grease-retained needle bearings, which give a slight gain in load capacity.

Drawn-cup, caged needle bearings are dimensionally identical to full-complement bearings, except that a retainer is used. As usual, the retainer and reduced complement provide higher speeds and reduced load capacity. In addition, the caged bearing has somewhat better tolerance for misalignment than the full-complement needle bearing.

Heavy-duty needle bearings are made with relatively heavy outer rings, made from hardened and precision-ground materials. The needle bearing load capacity is high because of the retainer-guided end-relieved rollers.
needle bearing, textile machine bearing,roller bearing