This needle roller bearing carries a machined outer ring without an inner ring, giving a radial section suited to compact housing designs where outside diameter is limited to 82.0 mm. The bearing belongs to the light series, weighs 0.337 kg, and uses a standard cage. Limiting speed is rated at 6800 1/min, with a reference speed of 4350 1/min. The full complement of needle rollers under the outer ring provides high radial load capacity relative to the cross-section, making the bearing suitable for applications where a shaft surface is used directly as the raceway. As no inner ring is included, correct shaft hardness and surface finish must be ensured to match the running accuracy of the outer ring. The standard cage guides the rollers evenly, supporting stable operation up to the stated speed limits under proper lubrication.