Jastram O and M Manual Pg 41.pdf

This is a technical engineering drawing for a 350' Hopper Dredger Rudder Stock Assembly, produced by Jastram. The drawing depicts detailed specifications for a carrier bearing assembly with radial and thrust bearing housings, including cross-sectional views (Section B-B and View A-A) and a circular end-view showing bolt hole patterns and dimensions.

Key specifications include a rudder stock diameter of Ø13.778" (±350.00), a maximum tiller hub outside diameter of Ø24 (9607), and various mounting provisions using M30 bolts (Grade 8.8 or better) supplied by the shipyard in eight locations. The assembly incorporates a tiller locking nut, tiller key, tiller hub, and sealing gasket, with grease fittings (15-21/64") and radial bearing provisions noted throughout. Critical measurements include a thrust bearing dimension of 16 (406), packing gland adjustments of 2-61/64" (75), and rudder stock liner specifications with maximum dynamic unit load ratings of 4500 psi. The drawing specifies that the shipyard must confirm rudder stock diameter to ensure proper radial bearing installation and machining of the packing gland liner to suit recommended liner thickness of .125" to .188". All dimensions are provided in inches with metric conversions noted in parentheses.