This insert bearing carries a spherically ground outer ring and locks onto the shaft by means of an eccentric locking collar, with the inner ring extended on both sides — a design intended for constant direction of rotation. Bore diameter d is 30 mm, weight is 0.38 kg. Further dimensions read from the catalogue drawing: B = 48.3 mm, C = 18 mm, D = 62 mm, c = 19.5 mm, m = M6 x 0.75, s = 18.2 mm, c0 = 11.3 mm, d1 = 39.7 mm, d2 = 44.5 mm. Series: HC. Dimensional-constructional equivalent: SKF YEL 206. The unit is sealed on both sides and pre-packed with lithium grease, class 2, so no separate lubrication step is required before mounting. The eccentric locking collar clamps directly onto the shaft, giving a fixed axial position once tightened, consistent with the constant-rotation-direction design. The spherically ground outer ring seats in the housing and permits self-alignment during installation. The extended inner ring on both sides provides additional shaft support surface at the seal locations.